Stryker Launches Advanced Robotic-Arm Assisted Total Hip Application

Market Leading Implants Combine with Proprietary Robotic-Arm Technology to Transform Orthopaedics

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Mar 25, 2015, 08:00 ET

MAHWAH, N.J., March 25, 2015 /PRNewswire/ -- Stryker Orthopaedics today announced at the 2015 American Academy of Orthopaedics the regulatory clearance of an advanced robotic-arm assisted total hip arthroplasty application for use with its Mako system.

Complementing the surgical approach of choice, the Mako System will be compatible with a surgeon's Stryker implant of choice. Stryker's Accolade II^Â®, Secur-Fit^Â® Advanced, Anatoâ„¢ and Exeter^Â® femoral implants coupled with the Trident^Â® Acetabular System and its precisely engineered X3^Â® polyethylene provide surgeons with the performance of Stryker's market-leading implant designs.

A recent study found that manual acetabular cup placement fell within the acceptable safe range only 50% of the time.¹ Robotic-arm assisted total hip arthroplasty has been shown to provide excellent accuracy and precision with regard to planned cup position, leg length, and offset.²

Additionally, robotic-arm assisted total hip arthroplasty has demonstrated acetabular cup placement four times more consistent to the pre-operative plan than manual cup placement^2-8and significantly higher modified Harris Hip Scores and UCLA Activity â€"Level Ratings compared with manual total hip arthroplasty at 1-year follow up.⁹

"Combining the Mako System's proprietary robotic-arm technology with Stryker's market-leading implants allows us to evolve the platform to enhance patient outcomes. This advancement reflects our conviction that this technology will transform joint reconstruction surgery," said Bill Huffnagle, President, Reconstructive Division.

Over 50,000 Mako procedures have been performed since 2006, with the first total hip procedure performed in 2010. Since then, over 7,000 total hip procedures have been performed with the Mako system which facilitates various surgical approaches including direct anterior, postero-lateral, and antero-lateral.

About Stryker:

Stryker is one of the world's leading medical technology companies and together with our customers, we are driven to make healthcare better. The Company offers a diverse array of innovative medical technologies, including reconstructive, medical and surgical, and neurotechnology & spine products to help people lead more active and more satisfying lives. Stryker products and services are available in over 100 countries around the world. For more information, please visit our website at www.stryker.com.

References:

1.	Callanan, MC, et al. The John Charnley Award: risk factors for cup malpositioning: quality improvement through a joint registry at a tertiary hospital. CORR 2011; 469(2) : 319

2.	Accuracy of Cup Positioning and Achieving Desired Hip Length and Offset Following Robotic THA. Jerabek SA; Carroll KM; Maratt JD; Mayman DJ; Padgett DE; 14th Annual CAOS Meeting, June 18-21, 2014, Milan, Italy.

3.	A Multicenter Evaluation of Acetabular Cup Positioning in Robotic-Assisted Total Hip Arthroplasty. Dounchis J, Elson L, Bragdon C, Padgett DE, Marchand R, Illgen R, Malchau H.43rd Annual Course: Advances in Arthroplasty, October 22-25, 2013, Boston, MA

4.	Comparison of Robotic-assisted and Conventional Acetabular Cup Placement in THA: A Matched-pair Controlled Study. Domb BG, El Bitar YF, Sadik BS, Stake CE, Botser IB, Clin Orthop Relat Res. 2014 Jan;472(1):329-36

5.	Does Robotic-Assisted Computer-Navigation Affect Acetabular Cup Positioning in Total Hip Arthroplasty in the Obese Patient? A Comparison Study. Domb BG, et al,. 14th Annual CAOS Meeting, June18-21, 2014, Milan, IT.

6.	The Learning Curve Associated with Robotic-Assisted Total Hip Arthroplasty. Domb BG, et al,. 14th Annual CAOS Meeting, June18-21, 2014, Milan, IT.

7.	Robotic Arm Assisted THA Improved Accuracy, Reproducibility, and Outcomes Compared to Conventional Technique. Illgen R. 43rd Annual Course: Advances in Arthroplasty, October 22-25, 2013, Boston, MA.

8.	Haptically guided robotic technology in total hip arthroplasty â€" A cadaveric investigation. Nawabi DH; Conditt MA; Ranawat AS; Dunbar NJ; Jones, J; Banks S, Padgett DE. Journal of Engineering in Medicine. December 2012. [Epub ahead of print].

9.	Bukowski B.; Abiola, R; Illgen R. Outcomes after primary total hip arthroplasty: Manual compared with robotic assisted techniques.; 44^th Annual Advances in Arthoplasty; Cambridge, MA. October 7-10 2014.