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Knee replacement surgery can be performed as a partial or a total knee replacement. [3] In general, the surgery consists of replacing the diseased or damaged joint surfaces of the knee with metal and plastic components shaped to allow continued motion of the knee.
The only competitive reduced-wear option for total knee arthroplasty (TKA) is metal-on-cross-linked polyethylene. In September 2003, Smith & Nephew recalled its Macrotextured Oxinium Profix and Genesis II knee implants because of reports that 30 people receiving the implants without bone cement had to undergo a replacement surgery after they ...
In August 2010, DePuy recalled its hip replacement systems ASR XL Acetabular Hip Replacement System and ASR Hip Resurfacing System due to failure rates and side effects including metallosis. The recalls triggered a large number of lawsuits against DePuy and its parent company Johnson & Johnson upon claims that the companies knew about the ...
As well as the standard total knee replacement surgery, the unicompartmental knee replacement, in which only one weight-bearing surface of an arthritic knee is replaced, may be performed, [25] but it bears a significant risk of revision surgery. [26] Joint replacements are used for other joints, most commonly the hip [27] or shoulder. [28]
In 2014, he rode in the first half of the year, but his knee problems became too severe to continue riding, and in July he announced a "break" in order to get a total knee replacement. He returned to riding by mid-October 2014, accepted mounts for the 2014 Breeders' Cup, and rode a winning race by mid-November 2014.
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