Stryker Corp
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Earnings Call Transcript

Earnings Call Transcript
2021-Q4

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Operator

Welcome to the Fourth Quarter 2021 Stryker Earnings Call. My name is Emily and I'll be your operator for today's call. At this time, all participants are in a listen-only mode. Following the conference, we will conduct a question-and-answer session. [Operator Instructions] This conference call is being recorded for replay purposes.

Before we begin, I would like to remind you that the discussions during this conference call will include forward-looking statements. Factors that could cause actual results to differ materially are discussed in the company's most recent filings with the SEC. Also, the discussions will include certain non-GAAP financial measures. Reconciliations to the most directly comparable GAAP financial measures can be found in today's press release that is an exhibit to Stryker's current report on Form 8-K filed today with the SEC.

I will now turn the call over to Mr. Kevin Lobo, Chair and Chief Executive Officer. You may proceed, sir.

Kevin Lobo
Chairman & Chief Executive Officer

Welcome to Stryker's fourth quarter earnings call. Joining me today are Glenn Boehnlein, Stryker's CFO; and Preston Wells, Vice President of Investor Relations. For today's call, I will provide opening comments, followed by Preston with an update on the trends we saw during the quarter and our annual Mako update. Glenn will then provide additional details regarding our quarterly results before opening the call to Q&A. As a reminder, as announced during our Analyst Day in November, we have reclassified our reporting segments into two groups: MedSurg and Neurotechnology and Orthopaedics and Spine. This better aligns to how our businesses are managed internally. We have also pulled out Neurovascular on its own line and have the business units of neurosurgical instruments, CMF and ENT now grouped under Neurocranial. As we have done all year, we will comment on our performance versus 2019 which we believe is a better basis for comparison.

For the quarter, organic sales growth exceeded 6% versus 2019, driven by double-digit growth from our MedSurg and Neurotechnology businesses but offset by softer sales of our Hips, Knees and Spine as COVID and hospital staffing challenges had a meaningful impact on elective procedures during the quarter. We posted double-digit organic growth in international compared to 2019 as our globalization efforts continue to bear fruit and where COVID impacts were generally less severe than in the U.S. While our more deferrable businesses were challenged, we saw excellent results from our Mako robotic technology, capital products across our metric portfolio and continued double-digit organic growth in Neurovascular which reached approximately $1.2 billion in sales for the year. Despite the unanticipated Omicron variant, we were able to achieve full year sales growth and adjusted EPS within our latest guidance ranges.

Our full year organic growth exceeded 7% and reflects strong demand for our Mako and MedSurg capital equipment and strong double-digit sales growth within Neurovascular and Neurocranial. In addition, we are very pleased with the Wright Medical integration, particularly in the U.S. Our full year adjusted EPS grew 10% versus 2019 and we delivered free cash flow conversion of 85%. The EPS growth was a strong result given the inflationary pressures that grew in the quarter and the COVID impact on our implant procedures. We continued to invest in R&D at a healthy rate of 6.6% of sales for the year and our new product pipelines are poised for continued success. Our strong cash flow performance provided us with additional flexibility to execute on M&A opportunities in the quarter, including Thermedx, a small tuck-in within endoscopy and the recently announced agreement to acquire Vocera.

Despite the impacts of the pandemic throughout the year, we were able to surpass $15 billion, $16 billion and $17 billion in revenue for the first time. And we remain confident in the outlook for our business as the pandemic recedes. We continue to execute on our key growth strategies, including the expansion of our ASC offense, continued product innovation and category leadership across our businesses.

Turning to 2022; the volatility caused by COVID variants remains ongoing and is further impacted by hospital staffing challenges and supply chain disruptions. In spite of this, we expect to continue to deliver above-market sales growth. However, given the pressures on our supply chain within MedSurg, we do not expect to deliver our typical degree of earnings leverage. We continue to be disciplined with our spending. However, we will continue to fuel new products with healthy R&D spending and will maintain our focus on above-market growth while we work through these cost pressures. As noted in the press release, we are guiding to 6% to 8% full year organic sales growth and adjusted EPS of $9.60 to $10 per share.

As I conclude my comments, I remain confident in our strategy, talent and culture. I would like to thank our teams for continuing to persevere in these challenging times.

I will now turn the call over to Preston.

P
Preston Wells
Vice President of Investor Relations

Thanks, Kevin. My comments today will focus on providing an update on the current environment, including the latest impacts of COVID-19 across certain products during the quarter. In addition, I will provide an update on Mako and recent acquisitions, including the continued integration of Wright Medical and the performance of our combined Trauma and Extremities business.

During the quarter, hospital bed and operating room capacities were challenged because of the Delta variant early in the quarter and most recently by the Omicron variant which started to pressure elective procedural volumes in December. In addition, ongoing nursing staffing shortages disrupted hospital scheduling of procedural volumes. The delay in procedural volumes primarily impacted our implant-related businesses, including hips knees, spine and foot and ankle which can be, in many cases, deferred for a period of time. However, we know that most of these patients will eventually return to have those procedures completed as the impacts from COVID decline and procedural volumes return to more normal levels.

Demand for our capital products was strong in the quarter, including double-digit orders and sales which created a strong order book for capital products. Despite the strong capital demand, there were some headwinds in the quarter that primarily impacted our Medical business, including installation delays caused by hospital staffing challenges and raw material shortages primarily related to electronics that created some supply disruptions.

For the full year 2021 versus 2020, our global Mako installed base grew by 27% and we now have an installed base that is approaching 1,500 Mako robots. This continues to grow -- this growth continues to highlight the high demand for our differentiated Mako robotic technology. The strong double-digit growth also underscores our ongoing success installing robots in major teaching institutions, ASCs and competitive accounts, as well as our focus on expanding into international markets. In the fourth quarter, we saw a meaningful increase in the percentage of robots installed into competitive accounts.

Turning to U.S. knee procedures. In the fourth quarter, over 50% of our total knees were Mako knee procedures, a trend that continues to increase and demonstrates the outstanding utilization of the Mako install base. The shift towards cementless knees also continued. And in the fourth quarter, cementless knees made up 47% of our U.S. knee procedures. Additionally, in the fourth quarter, over 25% of our total hip procedures were Mako Hip procedures which similar to knees, continues to increase in utilization. Our recently launched Insignia Hip Stem will also be Mako-capable by the end of the first quarter. We expect to further our leadership position in orthopedic robotic-assisted surgery through the continued adoption of our Mako SmartRobotics platform on a global basis.

Shifting to our Trauma and Extremities business. We are now over one year into the integration of Wright Medical which continues to progress well in all regions and across all functions, despite the headwinds from COVID. Including Wright Medical, the combined U.S. Trauma and Extremities business grew high single digits in 2021 which exceeded our expectations. The full year growth in the United States was driven by strong growth in core trauma and double-digit growth in the upper extremities business which offset the COVID-related impact on foot and ankle. This strong result reflects excellent execution of the sales integration and the strength of the product portfolio.

Finally, our dedicated divisional business development teams continued to identify and execute on meaningful acquisitions. As Kevin mentioned, we recently announced our agreement to acquire Vocera and enter the fast-growing digital care coordination and communications segment. We expect the Vocera acquisition to close by the end of the first quarter.

During the fourth quarter, we also finalized the acquisition of Thermedx. Thermedx is an innovative developer and manufacturer of fluid management solutions and will allow our endoscopy business to improve surgical visualization across the women's health segment and advance the standard of care in the urology segment. We believe these and other acquisitions completed during the year will help us continue to drive above-market growth in the future. The overall environment remains uncertain as a result of the continuing COVID pandemic and we expect hospital staffing shortages, supply constraints and significant inflationary pressures caused by raw material shortages to persist throughout 2022. However, we believe that the underlying demand for our products remains strong and coupled with a robust order book for our capital products, gives us confidence in our ability to drive market-leading growth when the impacts of the pandemic subside.

With that, I'll now turn the call over to Glenn.

G
Glenn Boehnlein
Chief Financial Officer

Thanks, Preston. Today, I will focus my comments on our fourth quarter financial results and the related drivers. Today's sales comments will be provided based on our new reporting structure. And as with previous quarters this year, all comments are in comparison to 2019 as it is a more normal baseline given the variability throughout 2020. Our detailed financial results have been provided in today's press release.

Our organic sales growth was 6.2% in the quarter. The fourth quarter included the same number of average selling days as Q4 2019 and Q4 2020. Compared to 2019, the two-year impact from pricing in the quarter was unfavorable 1.7%. Versus Q4 2020, pricing was 0.8% unfavorable. Foreign currency had a favorable 0.5% impact on sales. For the quarter, U.S. organic sales increased by 4.7%, reflecting the impact of COVID on elective procedures, hospital staffing shortages and disruptions of general hospital operations. This was offset partially by strong demand for Mako and our MedSurg and Neurotechnology products. International organic sales showed strong growth of 10.6%, impacted by positive sales momentum in Europe, Canada and emerging markets. For the year, organic sales growth was 7.2%, with U.S. organic growth of 5.2% and international organic growth of 12.9%. 2021 had the same number of selling days as 2019 and one less selling day compared to 2020. Compared to 2019, the two-year price impact had an unfavorable 1.5% impact on sales. Versus full year 2020, pricing was 0.8% unfavorable.

Our adjusted quarterly EPS of $2.71 increased to 8.8% from 2019, reflecting sales growth and a lower quarterly effective tax rate, partially offset by the impact of business mix, increased adverse COVID-related pressure on sales, gross margin inflationary pressures and higher interest charges resulting from the Wright Medical acquisition. Our full year EPS of $9.09 which represents growth of 10% from full year 2019 reflects the favorable impacts of sales growth, operating expense discipline, Wright Medical, foreign currency and a lower effective tax rate partially offset by increased investments in R&D as well as higher interest charges resulting from the Wright acquisition.

Now, I will provide some highlights around our segment performance. In the quarter, MedSurg and NeuroTech had constant currency sales growth of 11.8%, with organic sales growth of 11.6% which included 9.3% of U.S. organic growth. Instruments had U.S. organic sales growth of 10.6%, led by strong growth in their Orthopaedics instruments and Surgical Technologies businesses, highlighted by growth in their power tools, waste management, smoke evacuation and Steri-Shield products.

Endoscopy had U.S. organic sales growth of 11%, reflecting strong performances across their portfolio, including general surgery and fluorescence products and strong double-digit growth of their sports medicine and communications businesses. The Medical division had U.S. organic sales growth of 10.3%, reflecting solid performances in their Sage and bed businesses. During the quarter, we also saw significant growth in orders across the medical portfolio, driven by very strong demand. Assuming normalization of the customer environment and a reduction of certain supply constraints, we expect these orders to contribute to another strong year for Medical in 2022.

Our U.S. Neurovascular business posted organic growth of 7.4% reflecting solid growth in their hemorrhagic and aspiration products. The U.S. Neurocranial business posted organic sales growth of 5.7% which included solid growth in our MAC space, ENT navigation and cryotherapy products, somewhat offset by continued COVID impacts. Internationally, MedSurg and NeuroTech had organic sales growth of 18.6%, reflecting double-digit growth in the Endoscopy, Medical, Neurovascular and Neurocranial businesses. Geographically, this included strong performances in Europe Canada, China and in the NeuroTech businesses in emerging markets.

Orthopaedics and Spine had constant currency sales growth of 15.2% and an organic sales decline of 0.8% with an organic decline of 2% in the U.S. This reflects the impact of the slowdown in elective procedures during the quarter as a result of the Delta and Omicron variants of COVID. Our U.S. Knee business grew 0.1% organically. As a reminder, during the fourth quarter of 2019, our U.S. Knee business had very strong growth of approximately 10.5%.

Our U.S. Trauma and Extremities business grew 6.7% on a comparable basis with strong growth in our plating products combined with double-digit growth in our upper extremities business. Spine declined 6.6% organically in the U.S., primarily resulting from COVID disruptions to their business. Other Orthopaedics grew 21.5% organically in the U.S., primarily reflecting continued strong demand for our Mako robotic platform which had growth in the U.S. of 43.5%. Internationally, Orthopaedics and Spine grew 1.9% organically which reflects the strong momentum of Mako in Japan, Korea and emerging markets, somewhat offset by the impact of volume-based pricing in China, primarily related to our Trauson business.

For the quarter, our Trauma and Extremities business which includes Wright Medical, delivered 4.1% constant currency growth on a comparable basis. The Wright Medical acquisition anniversaried in November 2021 and will be part of our organic sales throughout 2022.

Now, I will focus on operating highlights in the fourth quarter. Our adjusted gross margin was 65.8%, was unfavorable approximately 50 basis points from the fourth quarter of 2019. Compared to the fourth quarter in 2019, gross margin was adversely impacted by business mix; operational inefficiencies due to COVID, including employee absenteeism; and raw material inflation, primarily related to electronic components, steel and transportation costs. We expect these adverse impacts to continue throughout 2022 with a more pronounced impact in the first half of 2022.

Adjusted R&D spending was 6.4% of sales which represents an 80 basis points increase versus the fourth quarter of 2019 and reflects our continued commitment to innovation funding and the related growth that we'll provide. Our adjusted SG&A was 32.1% of sales which was a 20 basis point improvement as compared to the fourth quarter of 2019. This reflects continued cost discipline and fixed cost leverage, offset by the ramping of certain expenses and hiring to support future growth and the dilutive impact of the Wright Medical acquisition.

In summary, for the quarter, our adjusted operating margin was 27.3% of sales which is 100 basis points unfavorable to the fourth quarter of 2019. This performance primarily resulted from adverse business mix, gross margin challenges, investments in R&D and the dilutive impact of acquisitions, primarily Wright Medical.

Other income and expense increased as compared to fourth quarter in 2019, primarily resulting from the interest expense increases related to our debt outstanding for the funding of the Wright Medical acquisition. Our fourth quarter had an adjusted effective tax rate of 15.2%. Our full year adjusted effective tax rate is 14.9% which was partially impacted favorably by onetime items during the year. For 2022, we expect our full year effective tax rate to be in the range of 15% to 16%. Focusing on the balance sheet, we ended the fourth quarter with $3 billion of cash and marketable securities and total debt of $12.5 billion. For the year, we paid down $1.2 billion of debt.

Turning to cash flow; our full year cash from operations was approximately $3.3 billion. This strong performance reflects the results of net earnings and continued focus on working capital management. For 2022, we anticipate that capital spending will be approximately $650 million. Again, in 2022, we do not plan to do any share buybacks given our anticipated focus on further debt reduction.

And now I will provide you 2022 full year guidance. As we assess the current operating environment, we believe that there will be continued volatility caused by ongoing COVID-related impacts, hospital staffing challenges and increasing supply chain disruptions as well as significant inflationary risks. Given this variability, we expect organic sales growth to be in the range of 6% to 8% for the full year 2022 when compared to 2021. There are the same number of selling days in 2022 compared to 2021. Consistent with the pricing environment we experienced in previous years, we would expect continued unfavorable price reductions of approximately 1%. If foreign exchange rates hold near current levels, we anticipate sales and EPS will be modestly unfavorably impacted as compared to 2021 and this is included in our guidance.

Despite the top line and operational risks of COVID, we have good momentum in many parts of our business heading into 2022, including the continued demand for our Mako technology, a very robust order book for our capital products, continued execution of our combined T&E business and many, many product innovations.

For the full year 2022, we do not expect to deliver our typical operating margin expansion as a result of the ongoing price escalation on supply-constrained raw materials like electronic components and rising inflationary costs on raw materials transportation and labor costs. As a result of the latest COVID wave and the current inflationary environment, we expect gross margin performance to be negatively impacted by 50 to 100 basis points with a more pronounced impact in the first half of the year.

As we said during our analyst call in November, we plan to return to our normal delivery of margin expansion once we reach a post-COVID environment. Finally, for 2022, we expect adjusted net earnings per diluted share to be in the range of $9.60 to $10 for the full year. This wider guidance range represents the ongoing variability in the operating environment. The upper end of our guidance range assumes the latest COVID wave subsides in Q1, with no additional major COVID disruptions during the year. In addition, it assumes that the supply chain stabilizes by the end of the first half of the year.

The low end of the guidance range assumes the continued COVID-related volatility persists, including supply chain pressures that could impact revenues as well as costs and includes more transient spot buying and longer-term supply chain pressures. We will continue to evaluate the changing environment and we'll provide updates to our guidance as necessary.

And now I will open up the call for Q&A.

Operator

[Operator Instructions] Our first question today comes from the line of Robbie Marcus from JPMorgan. Robbie, your line is open.

R
Robert Marcus
JPMorgan

Thank you. And thanks for taking the question. Maybe we could start just following up on guidance. I think investors really -- I'd love to get a sense of cadence through the year. How are you thinking about maybe first quarter or first half relative to second half both on top and bottom line, so we can calibrate correctly.

G
Glenn Boehnlein
Chief Financial Officer

Sure. Yes, Robbie, I think right now -- and obviously, you kind of see it because of the wide range of guidance we've provided, both sort of top and bottom. But our thinking is, is that the real pronounced impact that we'll have on top line and on gross margin will be in the first half of the year. We'll really feel the impacts related to that very pronounced in first quarter and lesser so in second quarter. And then we feel like things will start to stabilize by the time we get to third quarter and fourth quarter. But we do see real cost pressures, especially around our electronic components which go in many, many of our products, especially on the MedSurg side of the business. And the buying of those products is many times in a spot market where it's an auction process and we're paying significantly higher prices than what we normally would pay related to those.

R
Robert Marcus
JPMorgan

Got it. Maybe I could just tag on to that. As we think about first quarter here, we've heard other companies more muted kind of flattish or low single-digit growth with the cadence improving over the back part of the year. Is that a reasonable assumption? And then I'll jump back in queue.

P
Preston Wells
Vice President of Investor Relations

Yes. I mean, Robbie, we're not obviously guiding for the quarter. But certainly, as we think about the fourth quarter and how the fourth quarter ended with regards to the COVID variants continuing into January. So I think you can certainly think about it that way that there are some of those pressures from a top line standpoint that are certainly continuing at the beginning of the year.

Operator

Our next question comes from the line of Joanne Wuensch from Citi. Joanne, your line is open.

J
Joanne Wuensch
Citi

Thank you and good evening. Two questions; the first one has to do with U.S. Mako robotic placements. If I heard that correctly, that's a big number. Should we interpret that as just general demand or maybe demand ahead of expectations for increasing procedures?

P
Preston Wells
Vice President of Investor Relations

No. I think, Joanne, if the Mako numbers you're referring to are how we're continuing to utilize Mako as it becomes a bigger and bigger portion of our total knee business, I mean this is just a continuation as we think about what we've talked about over the last few years. So again, we expect this to just continue to grow as we think about the utilization both on knees and what we're now seeing on hips as well and then also as we think about cementless in the knee world. So we would expect that just to continue to go as we continue to place and install Mako's in different areas.

J
Joanne Wuensch
Citi

All right. And then it sounds also, if I'm hearing correctly, that this may be a year where you just sort of plow through and continue to invest, even if it's a little bit rocky. Is that the right way to think about things?

Kevin Lobo
Chairman & Chief Executive Officer

Yes, Joanne, this is Kevin. That's exactly the right way to think about it. We have terrific product pipelines. We have a lot of new products we're launching this year, including a new power cot, the Insignia Hip Stem, a number of foot and ankle launches, three launches in the upper extremities space. We have the in-space balloon. So a lot of new products but we're also gearing up for 2023, where we're planning to have a next-gen camera, a next-generation power tool, next-generation life pack. And as you know, these new products are really the lifeblood of our top line growth. So we are not going to slow down on the R&D investments. Of course, we'll look at the rest of our SG&A and be cautious just like you've seen us be cautious over the last two years. But yes, we are going to power through. But we do have a lot of tailwinds. We have a very strong order book and capital equipment. We're having a little trouble securing all the components to be able to ship all the products but we have a healthy order book. We have good momentum. And obviously, we need to ride out the COVID challenges. But yes, we are going to continue to invest for the future.

J
Joanne Wuensch
Citi

Thank you. Have a great night.

Operator

Our next question comes from Lawrence Biegelsen from Wells Fargo. Your line is open.

L
Lawrence Biegelsen
Wells Fargo

Thanks for taking the question. One for Glenn on margins and one on Hips and Knees. So on margins, Glenn, just to clarify the negative 50 to 100 basis points of gross margin impact. Is that the gross impact from inflation hitting the P&L? Or is that the impact you expect the year-over-year change in the gross margin in '22 versus '21? And why are you confident the inflation will abate in the second half of the year and it won't linger? And I have one follow-up.

G
Glenn Boehnlein
Chief Financial Officer

Yes. Larry, honestly, that's the year-over-year impact to gross margins, not the isolated necessarily inflationary impact. That would include impacts from pricing pressures as well. Confidence that it will abate, I don't necessarily think that I have confidence it will abate. I think it will moderate is what will happen. I mean a lot of this pricing pressure is based on commodity pricing which is highly driven by supply and demand. I do believe that supply will catch up. We are securing bulk purchases of demand. So I think that will help us even out our utilization of it as well. And so I do think by the back half of the year, we'll start to see moderation of those costs.

L
Lawrence Biegelsen
Wells Fargo

That's helpful. And Kevin, typically, Knees are more deferrable than Hips. This time, your Knee growth was much better than your Hip growth. That's -- I guess that's unusual. I don't know, I'm not looking at all the historicals but usually, we think about Hips being more -- less deferrable. So why do you think Knee growth was so much better than Hip growth this quarter for you guys? Thanks.

Kevin Lobo
Chairman & Chief Executive Officer

For us, Knees has been really the engine of growth within our joint replacement business, if you look over the last two, three years. The combination of Mako and cementless is just so powerful that we've had a disproportionate growth in Knees relative to the market. In Hips, we have a gap with that hip stem which really -- the new stem that we -- we're just in early launch right now, the full launch will be at Academy, a bit at the end of the first quarter. That's really going to solve a gap in the direct anterior procedure. So I do expect that our Hip business will pick up. You're right that technically it's a little less deferrable but the mix, it's really the product portfolio that we have now which has favored Knees. It's not new in this quarter. It's been going on for the last couple of years. And we do expect our Knee business to continue to thrive. And we're excited about the new hip stem, especially when it becomes compatible with Mako at the end of the first quarter.

Operator

Our next question comes from Matt Miksic from Credit Suisse. Matt, your line is open.

M
Matt Miksic
Credit Suisse

Hi, good evening. Thanks so much for taking our questions. So I had one for Glenn on sort of the margin trends and thoughts about sort of earnings growth over the -- this year and intermediate and then a follow-up for, maybe, Kevin, on ASCs. So Glenn, this year, just a couple of questions. You've talked about -- you mentioned in your prepared remarks, these issues of inflationary pressure hoping, I guess, by the end of the year that some of this is going to -- you're going to be able to manage through them a little bit better. But taking that in the context of your longer-term outlook that you've given at your Analyst Day, could you talk a little bit about sort of, I guess, reconciling this near-term outlook and expectations for earnings growth given the current environment versus what you had described over longer term which was sort of an open-ended long-term average EPS growth that obviously contemplates a different environment next year and the year after than we're facing at this moment. And then as I mentioned, just one follow-up for Kevin or -- on ASCs, if I could.

G
Glenn Boehnlein
Chief Financial Officer

Okay. Yes, Matt, I think, first of all, at the Analyst Day, the guidance that we laid out was our long-term financial guidance. That guidance was specifically once we exit this kind of COVID environment which clearly in 2022, we are not in a position that we're exiting the COVID environment. Right now, just based on foundationally what is underlying those long-term financial plans in terms of what we have lined up for growth, how do we think about M&A, how do we think about our product portfolio and new innovation, I see no reason why we would change our thoughts around that long-term growth. Now if you work your way down through the income statement and say, okay, how are you going to finagle your EPS to get to that growth challenge number. I actually think in this year's growth number, if you look at the high end of our EPS, we're not far away from what we're asserting is our long-term challenge. I do think that once COVID abates, we will get right back on our cost improvement initiatives, especially around direct purchasing. I don't see that changing at all.

Throughout COVID, we have kept up pace in our CTG initiative still, just in terms of focusing on shared service opportunities, looking at indirect purchasing opportunities. And so all those foundational elements are still in place. And I do have all the confidence to think that once we exit COVID that we'll get right back into that cadence of delivering that.

M
Matt Miksic
Credit Suisse

That's helpful. And then just on ASCs, also kind of a big part of the presentation at your Analyst Meeting and came up again today, I think, in your performance commentary for Q4. Would be great to get your perspective maybe on as we think about Orthopaedics and large joints in particular, moving into that channel over time, as folks have been talking about for a while, if you could give us any sense of what -- if and when you'll be able to give us some sense of your percentage of your businesses there, how the growth there differ, say, from growth in your sort of traditional larger centers. Is there any kind of color over and above what you gave just now on Q4? Would be super helpful.

P
Preston Wells
Vice President of Investor Relations

Matt, it's Preston. So as we've talked about in the past, we talked about our Knees, in particular, being about 5% to 10% of our business being in the ASC. And as we've seen that continue to grow, as we came through the fourth quarter, we're seeing numbers that are actually reaching closer to that 10% number. So, we are seeing that shift happen. I mean it certainly is happening when we think about where patients are wanting to get procedures done. Certainly, as we think about our focus from our offense standpoint, as we think about the ASC, we are seeing the shift happen across our product line. So certainly, we expect that to continue to go. We've talked about that there is an opportunity for that to continue to grow over time. Certainly, there are capacity constraints as ASCs are built out that will allow that continue to grow faster. But that's a shift that was already started and we don't see that slowing down anytime soon.

Kevin Lobo
Chairman & Chief Executive Officer

And I'd just like to add that outside of large joints, we also have our sports medicine business. That's within endoscopy. It grew 30% in the fourth quarter. So that's a great sign of the overall success that Stryker is having in ASCs, that really terrific growth in our sports medicine business.

M
Matt Miksic
Credit Suisse

Thanks so much.

Operator

Our next question comes from Pito Chickering from Deutsche Bank. Pito, please go ahead.

P
Pito Chickering
Deutsche Bank

Hi, good afternoon guys. Thanks for taking the questions. As hospitals are filling with the labor pressures in 2022, it could impact hospital cash flows. So are you seeing hospitals take a pause with capital purchases until they understand how the cash flows will be impacted by these labor costs? I understand that the order book is quite strong. Just thinking about how you're going to refresh the order book.

P
Preston Wells
Vice President of Investor Relations

Yes, Pito. No, we are not seeing that at all. I mean what we've continued to see throughout the pandemic and while some of it early on was aided by some of the CARES funding and things of that nature, we are seeing strong balance sheets and we're seeing the continued need for capital products. Certainly, as we think about the capital products that we supply that are either lending towards revenue generating for the hospital, or towards safety and outcome for the hospital. So we're definitely seeing a continued strength in terms of the capital demand, especially for our products. I mean our order book, as we'd said, is really strong heading into the year and there's a lot of confidence given some of the products that Kevin even outlined earlier that that's going to continue throughout the year.

P
Pito Chickering
Deutsche Bank

Okay, great. And then a follow-up questions. If gross margins are going to be impacted by 75 basis points at the midpoint, is it fair to think about some 40 basis points or so of SG&A leverage during the year in R&D flat? I just want to get a feeling for G&A versus the gross margins.

G
Glenn Boehnlein
Chief Financial Officer

Sure. As you think about operating expenses and I think Kevin emphasized this, we've protected R&D through this entire period. We just -- we know that's the lifeblood. We know we have to spend there. And so we have not backed away from funding those innovation initiatives from a people standpoint or a technology standpoint. And that's important and we won't change there. On the SG&A front, we've been a little more prudent. I think you've seen us be smart about our spending, be smart about, obviously, we're not traveling a lot, so we're not feeling that. I think as 2022 unfolds, though, I mean, a couple of things. Obviously, we'll continue to be prudent about hiring and bringing in costs but we will start to see those costs that relate to growth especially as it relates to interactions with customers, hiring sales forces, expanding territories, those types of costs will expand specifically in selling.

Now that being said, we will continue to pressure G&A, corporate type spending and things like that to try to offset some of that. But that's kind of how those operating expenses will look throughout the year.

Operator

Our next question comes from Frank Pinal from Jefferies. Frank, please go ahead.

F
Frank Pinal
Jefferies

Hi guys, thank you for taking the question. Just two quick ones for me on Mako, clearly, a strong quarter. You're now at 1,500 installs market lead. I'm just wondering at this point, Mako's been on the market for 7 years. And given the level of success and I think you're sort of seeing above 50% Mako procedures on Knees, above 25% on Hips. Where does that go? Does that go to 80% on Knees? Does that go to 50% on Hips over the next 5 years? And has your thinking on that opportunity at all changed U.S./OUS.

Kevin Lobo
Chairman & Chief Executive Officer

Yes, this is really great to see; the growth in robotics. It's obviously creating a new standard of care. It's becoming expected. Residents are expecting this as they enter the workforce in orthopedics. And so we see the growth absolutely continuing. It's going to continue along the path that's been going on. I think we're going to see Hips potentially hit an inflection point with our -- with the launch of our new stem and start to really accelerate. So, we're very excited about the future. We think robotics is here to stay as you've seen this happen in many other industries. And so we do expect that the growth will continue. In the fourth quarter, we had an unusually high level of installs and competitive accounts, higher than normal. And we think that the fact that there are other entrants on the market is actually bringing more trialing of our systems and creating even more interest in Mako than there had been previously. So it's a tailwind for the industry and we're going to continue to ride that tailwind.

And then as it relates to international, I would say we're still -- yes, thank you. I'll just continue on international. I would say we're still in the earlier phase of that as you've seen with other robotic technologies. It starts off here and then sort of expands around the world. We're still in early phases in Japan and in China and in Latin America but the growth is really starting to pick up there. The interest level is very high. And so I'm very bullish but it's going to take longer. It's a little slower the pathway there but it's just as exciting in the international markets.

F
Frank Pinal
Jefferies

Great. And just a quick follow-up. I'm just wondering if you have any updates on the spine or shoulder opportunity in robotics and if you put any sort of brackets around that with respect to timing or milestones at this point?

P
Preston Wells
Vice President of Investor Relations

Frank, it's Preston. So at this point, as we said before, with regards to both of those different platforms that we certainly have active projects that are working on them. They are key priorities for our development teams. But at this point, we still do not have a time line that we are sharing.

Operator

Our next question comes from Mike Matson from Needham & Company. Mike, please go ahead.

D
David Saxon
Needham & Company

Hi, good afternoon. This is David Saxon on for Mike. Thanks for taking the questions. My first one is just on Spine. Just wondering if you have any sense of if you've gained or lost share in the quarter. And then looking at 2022, do you think you can grow off that 2019 base? And then, I'll just ask my second question upfront. On the Foot & Ankle market, I think you've called out some weakness there. Just wondering if that's just a weak market or if you're seeing anything on the competitive front?

P
Preston Wells
Vice President of Investor Relations

Yes. So let me address your Spine question first. I think as we've said in general throughout the pandemic, it's just very hard to get a read on how share changes are happening given some of the COVID impacts and how they impact different things regionally also just in terms of where we are in the reporting cycle. It's very early. Certainly, with Spine, just like we saw with Hips and Knees, it was impacted from a COVID perspective throughout the quarter early on as we try to recover from Delta and then with Omicron coming in later on in the back part of the quarter. So not easy to say where everybody is going to shake out from that standpoint. But certainly, outside of COVID, outside of the staffing issues that we talked about as well, we are pleased in general with our product portfolio, including enabling technologies that we have in the Spine area. As we come back from COVID and as COVID abates, we would expect the growth to uptick in that area. And certainly, as we do with all of our businesses, expect to see growth on that business as we talk about year-over-year.

With regards to Foot & Ankle. Foot & Ankle, the market is still a very strong market. It's one that we're very happy about to be in. But unlike other products within the trauma or even upper extremities, Foot & Ankle was much more impacted from a COVID perspective during the quarter. And we've seen that throughout the year. But certainly, as COVID abates in that area as well, we would expect growth to really drive there. And Kevin mentioned, we have several product launches that are going to be happening in that space as well that we're very happy about. So we definitely look for growth, certainly, as COVID is starting to abate a bit to really see the growth take off in that area.

Kevin Lobo
Chairman & Chief Executive Officer

Yes. Just to put a fine point on the Foot & Ankle. So it's really the forefoot procedures that are a little bit more elective and that's where a number of our launches will happen. The Total Ankle Replacement was actually terrific in 2021, really great growth and we're going to continue to have very strong growth in Total Ankle Replacement. It's really getting the forefoot procedures to come back to the office. And as that grows, we will continue to grow. And a lot of our launches are MIS products, specifically for forefoot.

D
David Saxon
Needham & Company

Great. Thank you.

Operator

Our next question comes from Chris Pasquale from Guggenheim Securities. Chris, your line is open.

C
Chris Pasquale
Guggenheim Securities

Thanks. One question, high level for you, Kevin and one specific one on Neurovascular. So given how entrenched you guys are in the hospital, I'm curious that you're thinking about the staffing challenges that we're hearing about around the health care complex. You shared some assumptions around when COVID and supply chain issues might ease. When do you think we might put the staffing piece behind us?

P
Preston Wells
Vice President of Investor Relations

Yes. So just in terms of staffing, this is Preston. Just similar to some of these other headwinds that we talked about, the staffing challenge is a real one that certainly it seems to be much more pronounced in periods of high COVID infection rates. Obviously, as those nurses are either doing other things or in fact, impacted themselves from a COVID standpoint. So we certainly do expect the staffing challenge to remain throughout the rest of this year. But we are seeing hospitals try to find ways to deal with it, whether it's looking at traveling nurses or adjusting wages or even adjusting how they're scheduling to get through that. So while it will be a bit of a headwind, we certainly think that it's something that we will be able to work through. And as procedures return, we certainly expect to get the procedural volumes back to the levels that we would want them to be.

C
Chris Pasquale
Guggenheim Securities

Okay. So you don't see that as an impediment to a bounce back in activity once COVID recedes?

P
Preston Wells
Vice President of Investor Relations

No.

C
Chris Pasquale
Guggenheim Securities

Okay. And then just quickly on Neurovascular. There's a competitor recall in the flow diverter segment during 3Q. Just curious how much you think that benefited you and if you've been able to take advantage of that to get into some new accounts?

Kevin Lobo
Chairman & Chief Executive Officer

Yes, our flow diverting stent business has been really a strength for us and it's not really so much related to competitive activities, just getting surgeons trained on the product. As you know, the Evolve stent is newer in many of the markets. It's a newer launch and we still haven't launched it in all countries around the world but we're pretty excited about the product and it's been growing at a pretty healthy rate. And there was no -- I would say, no change or no inflection point related to competitive activity.

C
Chris Pasquale
Guggenheim Securities

Thanks.

Operator

Our next question is from Matthew O'Brien from Piper Sandler. Matthew, the floor is yours.

M
Matthew O'Brien
Piper Sandler

Hi, good afternoon. Thanks for taking the questions. I guess just bigger picture question for starters is you kind of said at the Analyst Day, you're about an 8% top line grower, you're guiding now 6% to 8%, so 7% in the midpoint, 100 basis points, $170 million roughly. I'm just wondering this year, if that's really all just conservatism around the impact of COVID or if there's just some supply issues that are going to cause you to just have to back order a bunch of products and that's why you're taking it kind of down about 100 basis points versus where I think we had all kind of expected the top line guidance for the year? And then I do have one follow-up.

P
Preston Wells
Vice President of Investor Relations

Yes. So Matt, I think as we look at 2022 and as we enter the year, similar to what we've seen in 2021, I mean, there still continues to be a lot of variability with just COVID. And so if we think about how we've entered this year with COVID being pretty high in some places and while this variant seems to happen very fast and it seems to be peaking in some areas which is encouraging, what we can't predict is where the next wave is and what might happen from a next wave standpoint. So there's a lot of variability just as we think about COVID and then we add on top of that some of the challenges and the headwinds from a supply chain perspective. And it's not to say that there's a big bolus of supply chain issues that we have. But just in general, if we think about electronics and components and some of the challenges just with supply across all industries, that's certainly something that's out there in front of us as well.

So there's just a lot of variability as we think about this year in terms of some of those top line aspects that is one of the reasons why we have that wider spread and maybe a little bit lower than what some others were expecting. That being said, as Kevin outlined, there are some really, really good tailwinds that we do have as we think about entering this year, whether it be our Mako installation base and how that's going to portray into future sales there. Also the new product launches that he's outlined. Of course, we have the Vocera deal that we're hoping to close this quarter as well. So there's a lot of positive momentum that we have across our businesses that we're going to take into this year and so we're really pleased with that. But just balancing that with some of those headwinds that I outlined as well.

M
Matthew O'Brien
Piper Sandler

Okay. But you are assuming another wave then, Preston, just to be clear on that, in the guidance?

P
Preston Wells
Vice President of Investor Relations

Yes. As Glenn outlined in the guidance that he went through, we do have some of that assumed in that spread that we have.

M
Matthew O'Brien
Piper Sandler

Okay. And then as a follow-up, Kevin, the commentary about taking competitive share or placing more Mako accounts into competitive customers really caught my attention. And what I'm wondering is if there was just a bunch of trialing that went on in Q2, Q3, you just had a massive Q4 quarter in terms of system placements and sales. Are those -- is it primarily in accounts that have a competitive robot or are launching one right now where you saw a majority of those incremental system placements here in Q4?

Kevin Lobo
Chairman & Chief Executive Officer

I don't really get into that level of detail. What I'd just say is the mix -- we used to report the mix as roughly 50% to 60% in competitive accounts. It was well north of that in the fourth quarter. Now I don't know if it's just a one quarter issue or whether that will continue. There were a lot of accounts that were kind of waiting for other offerings to appear on the market. And once those offerings appear, then they would have trials. And in most cases, it was -- in some cases, I know it was the first robot. In other cases, it may have been the second or the third robot in those accounts. I don't have exactly that level of information. But it was higher than we've seen in the past. I can't say I was expecting it. It was higher than I expected. But I am expecting Mako to continue to grow and that's not new. It's just the mix was more competitive than we've seen previously.

Now, we'll see if that continues going forward. But the order book for Mako as well as for the MedSurg capital is strong at the end of the year; so that tells us that momentum will continue into 2022.

Operator

Our next question is from Steven Lichtman from Oppenheimer. Steven, please go ahead.

S
Steven Lichtman
Oppenheimer

Thank you. I think I -- just one on the supply disruptions, particularly around electronics; I apologize if I missed this. But is the impact really on Medical solely or does it potentially have an impact on your ability in other areas, particularly to keep up with demand in Mako?

P
Preston Wells
Vice President of Investor Relations

So the impact is primarily impacting our Medical business but there are some smaller impacts that we're seeing on some of the other MedSurg-related businesses. As we think about Mako, as we entered into 2022 and the expected demand that we have for Mako, we feel comfortable where we are in terms of supply and any impacts on Mako are minimized at this point.

S
Steven Lichtman
Oppenheimer

Okay. And then you guys mentioned, I think, versus 2019, international performance was better than U.S. on an organic basis. As you look into '22 in your guidance, do you assume constant currency growth for international which will continue to be ahead of the U.S. or is it more balanced? How are you thinking overall about your international business versus U.S. as you look into the theater?

P
Preston Wells
Vice President of Investor Relations

Yes. Well, we don't provide guidance at that level. We don't expect the momentum that we've generated throughout this year to slow down as we think about our international business. And quite frankly, as Kevin has pointed out in the past, this is something that we've been building towards as we think about our focus on international markets. And so there's no reason to believe that, that will slow down.

S
Steven Lichtman
Oppenheimer

Okay. Thanks, guys.

Operator

Our next question comes from the line of Matt Taylor from UBS. Matt, please go ahead.

M
Matt Taylor
UBS

Hi, thank you for taking the questions guys. Just had two quick ones. One is on the supply chain assumptions, I didn't detect in your comments that you were saying supply chain specifically was impacting revenue. Is it all a cost impact? Or is there actually some product that you're not able to get out because you can't get componentry and the like?

P
Preston Wells
Vice President of Investor Relations

Yes. So I think it's a bit of a mixed bag. So there certainly are inflationary pressures that we're feeling as a result of the supply chain and just constraints on certain materials like electronics. But that is also, in some cases, leading to some delays in terms of getting some products out. So we do have a bit of a mix as we think about supply and certainly, the procurement team, the direct procurement team is working on actively securing as much as possible. But as Glenn mentioned, sometimes what that means is going outside of our contracts into spot buys and that's what's generating some of the larger inflationary impacts as we think about the guidance that we gave. Obviously, our goal is to protect our customer needs as best as possible as we go through this but there certainly is an impact on both the top and the inflationary pieces that Glenn outlined as well.

M
Matt Taylor
UBS

Okay, that makes sense. That's helpful. And then just one other follow-up. So it's encouraging to see the strong capital trends, especially in Mako. I guess I was wondering if you are seeing any places where capital purchasing has been weak. And I'm thinking especially beds, I think some investors are concerned that maybe beds were pulled forward because of the pandemic. So I would love any comments on that pluses and minuses in capital spending that you're seeing?

Kevin Lobo
Chairman & Chief Executive Officer

Actually, our capital order book is strong across the board. And in particular, beds had a terrific finish at the end of the year in terms of orders, a huge number of orders for our new ProCuity bed. So it's a new launch. It takes some time to go through the trialing process but we're extremely excited about our bed business. I think Glenn highlighted that in his remarks but the orders for our beds are very high, very strong. And we now have to build all the beds and make sure we have all the parts to be able to ship them all but we're very excited about the momentum; so it's broad-based. It's in our emergency care area, it's in Mako, it's in beds, it's in the Instruments division, the Endoscopy division, capital across the board is strong.

M
Matt Taylor
UBS

Cool. Good to hear. Thanks, Kevin.

Operator

Our next question comes from Joshua Jennings from Cowen. Joshua, your line is open.

J
Joshua Jennings
Cowen

Hi, good evening. Thanks so much. Kevin, I was hoping to have two pipeline questions. You made a big winning bet on pairing robotics with Trauson Knee. I was wondering if there -- had any change in strategy on the implant side? And anything on the manufacturing front? Is it still cost-prohibitive for 3D printing of transplant implant? And how do you see the Knee implants evolving from here under Stryker's roof? And then the second question is just, robotics on the pipeline with spine and shoulder, are there any other areas, particularly one of the question on Neurovascular, where you see robotics or a killer app in the neurovascular or any other business segments for Stryker?

Kevin Lobo
Chairman & Chief Executive Officer

Okay, great. Well, thanks. We'd like to sort of wait until we have something proven before we kind of talk about it. We are looking at femurs, in particular, cobalt chrome at different manufacturing processes for those. And once we're ready to talk about that, we'll share that. We have automated the beating that's used for the cementless part of the femur. We are constantly looking at different surface materials. But not ready to announce anything yet. I would say that the actual design of Trauson, we're really delighted with. As you saw, we came out with 3D printing, tibial baseplate, 3D printed patella to enable the cementless solution but not a fundamental change to the design. We came out with one millimeter inserts and we made other changes in, I'll say, modifications to make it easier to have a more personalized knee solution but not a fundamental redesign. So you shouldn't be expecting some kind of fundamental new design. But there will be things that we're working on that we'll be able to share with you on the knee side. Certainly, on the hip side, we have a new implant that we've talked about already earlier on that's fit for purpose for direct interior. We're very excited about that. We have a fabulous 3D-printed hip cup. But we do have instances where many surgeons are using our cup but they're using a competitive stem. And with this stem, we'll be able to convert all of their business. So that's very exciting for us.

But on the Knee side, I wouldn't expect anything major new. We are working on things when we're ready, we'll be able to share that. As it relates to future applications, as you know, robotics are challenging. We're -- our main focus is really shoulder and spine right now. There are some skunkworks projects, looking at some other areas. But again, I don't want to start talking about those yet because they need to get more proven before we're ready to talk about it. In the areas of spine and shoulder, it's a matter of time. We are going to have robotic applications. But again, we don't have a time line right now but we have projects that are working on -- teams that are working on it and making very good progress.

J
Joshua Jennings
Cowen

Great, thanks. Good luck, Kevin.

Operator

Our next question comes from Shagun Singh from RBC. Your line is open.

S
Shagun Singh
RBC

Great. Thank you for squeezing me in. Just a couple of quick ones from me. Firstly, what are you assuming specifically for margin expansion in the first half and the full year? And then on China, VBP, do you expect trauma and spine to be included in this year's announcement? And then just lastly, on ASCs, it's a major theme that we're hearing from hospital companies, including from HCA this morning that ortho is the latest category that's in transition from inpatient to outpatient. And I think Kevin previously had indicated about that you expect about 50% of procedures to transition and I think you gave a time line as well. Can you provide us with an update there?

G
Glenn Boehnlein
Chief Financial Officer

Okay. I'll -- this is Glenn. I'll take the first one, on margin expansions. We specifically did not really guide on margin expansion just because there's a lot of volatility. I think we were trying to provide you with some good color around some of the pressures we were feeling especially on gross margin. We do expect that to be a little more pronounced in the first half of the year especially as compared to prior year. And that's the extent of the guidance that we'll provide on margin. Then I'll hand it to Preston.

P
Preston Wells
Vice President of Investor Relations

So yes, Shagun, just back to your ASC question, as I talked about before, we do expect that transition to continue. In terms of a time line, I mean, I think a lot of it is just going to depend on how capacity is built and how we're able to continue to transition patients and surgeons to that setting. Certainly as we think about the ASC offense that we've created, we are here and actually helping to make that transition happen. So we certainly would expect our large joints to continue to make that shift as well. And I apologize, I forgot your second question that you had in there.

G
Glenn Boehnlein
Chief Financial Officer

I guess she is not there [ph]. And we can go to the next question.

Operator

Our next question comes from Jayson Bedford of Raymond James. Jayson, please go ahead.

J
Jayson Bedford
Raymond James

Good afternoon and thanks for taking the questions. Just a couple of quick ones. First, it's a little granular but in those geographies that have seen COVID cases that have rolled over, have you seen a pickup in volume growth?

P
Preston Wells
Vice President of Investor Relations

So I would say that it's spotty. I mean I think just like how we thought about COVID throughout the last 24 months or so, you will, as COVID cases start to decline and as hospitals are able to get capacity up and running, we know they will. And so certainly, as that happens with this wave, we will start to see procedures picking back up in those areas as well.

Kevin Lobo
Chairman & Chief Executive Officer

But it does vary by market. So in Australia, we definitely saw a big pickup as soon as they resume electives, the pickup is pretty swift. I would say the U.K. is similar. But then in other markets, whether it's Japan or whether it's Southern Europe, it's a little bit more gradual, the increase. So there isn't one answer but we do know is these patients are going to need their procedures. The pace of the recovery, honestly, is quite difficult to generalize because it does behave differently by country. We are expecting that there will be a pickup and we look forward to that.

J
Jayson Bedford
Raymond James

Okay, that's fair. And just secondly, on the Wright integration, you guys have done a great job here in the U.S. Just wondering, on international, how much work is left on the integration? And should we expect to see a pickup in international extremity growth in '22?

P
Preston Wells
Vice President of Investor Relations

Yes. We continue to work through the international integration. I would say that, as I mentioned in my prepared remarks, we continue to make progress in that space. And as we do, certainly, we should continue to see a pickup internationally as well.

Kevin Lobo
Chairman & Chief Executive Officer

Yes, it's -- the international market certainly lagged the U.S. We had distributor contracts and arrangements that we had to get out of. And so we always plan for that to be a little later. And so we didn't have any -- the kind of results internationally that we did in the U.S. but that wasn't a surprise to us. And you will see a gradual pickup in the international markets. We're quite excited because, obviously, Stryker has a larger footprint internationally and really a better home for the Wright Medical products and that should be an engine of growth in the years ahead.

Operator

Our next question comes from Jeff Johnson from Baird. Jeff, your line is open.

J
Jeff Johnson
Baird

Thank you. Good afternoon. Most of my questions have been answered, but Glenn, totally respect that you haven't guided to the operating margin line. But I think when we connect the dots between your revenue guidance, your gross margin guidance, your EPS guidance. I mean, simple math is kind of getting me -- it could be up -- operating margin could be up a very little bit to down 30, 40 basis points. Just directionally, is my math kind of right there? Or should I rethink some of my math.

G
Glenn Boehnlein
Chief Financial Officer

Yes. Jeff, yes, I think your -- the math is pretty obvious. I think if you take all the pieces. So, I imagine that your model probably will reflect that.

Operator

Our next question comes from Danielle Antalffy from SVB Leerink. Danielle, your line is open.

D
Danielle Antalffy
SVB Leerink

Thanks so much. Hey guys, good afternoon. Thank you so much for squeezing me in here. I just have one question and sorry to belabor the whole COVID recovery, etcetera, point. But just curious about how to think about this recovery post surge or post wave versus past recoveries. I'm thinking of post-Q -- sorry, Q2 of last year, even really Q2 of 2020 when things first opened up. You really saw a bolus but it feels like because of the hospital staffing shortages, this might be a little bit more linear in nature. I know it's probably very difficult to get granular here but just curious about what you're hearing, how you guys are thinking about the recovery curve itself?

P
Preston Wells
Vice President of Investor Relations

Yes, Danielle, you're right. It is a difficult thing to predict. And certainly, as we go back to 2020, I think you saw that big bolus pickup, if you remember how far down it was at the end of Q2. We certainly have not seen that same level of drop-off with these subsequent waves. So I think linear and gradual is probably the way to think about it, certainly muted a little bit by some of the staffing pieces. But I would say linear and gradual as we continue to come out of this recovery.

D
Danielle Antalffy
SVB Leerink

Okay, that's it for me. Thanks.

Operator

And our last question today comes from Drew Ranieri from Morgan Stanley. Drew, please proceed with your question.

D
Drew Ranieri
Morgan Stanley

Hi, thanks for taking the questions. Just maybe one for Glenn, just on cash flow for 2022. Can you provide any type of framework for cash flow from operations? I think you mentioned CapEx but just curious what you're seeing and -- or expecting and any type of working capital improvements you're kind of working on in 2022?

G
Glenn Boehnlein
Chief Financial Officer

Yes. No, great question. I think as we think about cash flow, we've really come a long way, especially from where we were in 2019 and especially a lot of the muscle and discipline that we've built around working capital management. So all of that will roll into this year 2022 and the benefits associated with that. I think there will be some spending that was somewhat muted and deferred in the past, especially around CapEx. And so right now, we're estimating approximately $650 million of CapEx. That being said, we generally target that 70% to 80% free cash flow conversion number. I know we've beaten that over the last couple of years but we've also seen reduced spending in a lot of areas that I think will start to pick up, especially as we exit this and kind of try to get to a more normal operating environment. So I think that's probably what we're targeting. There could be some variability depending on how COVID plays out through the year.

D
Drew Ranieri
Morgan Stanley

And Kevin, just one for you. You kind of touched on the Insignia launch and your expectation that it's going to drive more Mako utilization over time. But near term, maybe in 2022 as you're launching this at AAOS, I mean would you expect to get up to 30% utilization for hips on Mako? Or is there kind of a stretch goal that you have in mind for the year?

Kevin Lobo
Chairman & Chief Executive Officer

Yes. Actually, for this year, I'm more concerned really with just getting great uptake with the stem, whether it's with Mako or without Mako. We've already done a limited launch. Feedback has been incredibly positive from surgeons in terms of the broaching of the implant, the size options, the experience that they're having is really terrific. So in this first year, the Mako utilization is less important to me than really satisfying the surgeon's need for this product and really getting into DA. And I expect the Mako number will continue to rise. It could hit 30%, absolutely. But more importantly is really having success with the stem both manually as well as with Mako. And the full launch we expect will be in the second quarter. So, we'll really start to see a bigger impact in the second half of the year, but there will be some impact in the first half but much more towards the second half of the year.

Operator

There are no further questions at this time. I will now turn the call back to Mr. Kevin Lobo for any closing remarks.

Kevin Lobo
Chairman & Chief Executive Officer

So, thank you all for joining our call and for all your questions. As you can see, we had a very strong finish to 2021. We are working through the challenging environment right now. And you can see that the company is well positioned to fight through it. We are going to continue to invest for the future and make sure that as things improve in the environment that we're poised to capitalize on that and we look forward to sharing our first quarter results with you in April. Thank you.

Operator

Thank you. This concludes today's conference. Thank you for participating. You may now disconnect your line.