A 37-year-old woman with giant cell tumor with secondary aneurysmal bone cystic change treating with proximal tibia rotating hinge knee prosthesis presented an asymmetric wearing at femoral bushes and tibia hinge bush nine years after surgery. The fixed 7° anatomical design of this prosthesis produces excessive valgus stress leading to contributed asymmetric loading over the interface which resulted in wears of not only the tibia bearing polyethylene but also the tibia hinge polyethylene and femoral bushes. Reconstruct the native mechanical axis remains a main goal to extend the longevity of the implants instead of following the build-in angle of the prosthesis.
為了持續優化網站功能與使用者體驗,本網站將Cookies分析技術用於網站營運、分析和個人化服務之目的。
若您繼續瀏覽本網站,即表示您同意本網站使用Cookies。