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The Evolution of Total Knee Component Design Follows Anatomic Morphology

Gold, Christopher, A., BS*; Scuderi, Giles, R., MD

doi: 10.1097/BTO.0000000000000272

Over the years, the total knee arthroplasty (TKA) has become a common procedure for patients of various ages, ethnicities, and sex. Early prosthetic designs were limited in size and shape, leaving the surgeon to subjectively decide which component to use and sometimes having to compromise on the surgical technique to achieve a secure and stable construct. As studies began to investigate differences in tibial and femoral dimensions of the knee between specific populations, TKA implants incorporated these findings to become more anatomically accurate. When considering the global TKA patient population and the anthropometric differences between sexes and ethnicities, using anatomically proportioned femoral or tibial components with accurate trends in size and shape increases surgical accuracy to the measured anatomy, and ultimately influences clinical performance. This review will highlight the important clinical differences regarding knee anatomy between certain populations, along with the corresponding improvements in total knee component design.

*NYIT College of Osteopathic Medicine, Old Westbury

Northwell Orthopedic Institute, Lenox Hill Hospital, NY, New York

The authors declare that they have nothing to disclose.

For reprint requests, or additional information and guidance on the techniques described in the article, please contact Christopher A. Gold, BS, at or by mail at Northwell Health, 75 Second Street, Garden City, NY 11530. You may inquire whether the author(s) will agree to phone conferences and/or visits regarding these techniques.

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