复杂的初次或修正膝关节置换

复杂的初次或修正(重做)膝关节置换是具有技术挑战性的手术,只应由专门致力于髋关节和膝关节置换的医生进行。

下面是李文龄医生挑战复杂的初次(第一次)病例的例子,在这个病例中,膝关节周围存在严重的畸形和韧带支撑损伤。

knee replacement

术前 (左膝严重弯曲)

knee replacement

术后 (通过特殊移植物,左膝伸直且稳固)

导致膝关节置换失败且需要修正(重做)手术以缓解疼痛的原因有很多。如果距第一次手术做完已经过了一段时间,最常见的原因是塑料衬套(很多年前植入的塑料衬套不像现在植入的塑料衬套那么耐用或光滑)磨损。如果手术是近期完成的,那么手术失败的部分常见原因是与手术有关的感染或技术错误。下面是针对李文龄医生提到的一位手术失败且移植物破损的患者进行的膝关节置换修正术例子。

knee replacement

膝关节置换修正术前(破损的胫骨移植物与较严重的骨缺损)

knee replacement

膝关节置换修正术后 (移植物被换成特殊修正移植物)

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