Total knee arthroplasty (TKA) is usually the treatment of choice for severe osteoarthritis (OA) of the knee. Numerous clinical studies of TKA have shown high rates of long-term joint survival with good function [1]. Nevertheless, alternatives to this established procedure are being increasingly considered for several reasons. Postoperatively, patients frequently experience a slow rehabilitation and do not folly recover normal function [2]. On the other hand, there is a growing pressure to reduce operating time while increasing the use of less invasive surgical techniques.
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