Knee Arthroplasty for Deep flection. -Investigation of Surgical Tchnique-

[导言]全膝关节置换术(TEA)已被证明是一种成功的缓解疼痛和恢复日常活动的手术。然而，茶后的活动范围对于亚洲人的生活方式来说并不令人满意。Insall和Kondo报告说，股骨远端髁后的间隙增加了屈曲时的活动范围。我们把这个程序应用到我们的手术中。[材料与方法]我们采用特殊的手术技术进行了40例(34例骨关节病患者)全膝关节置换术。患者平均年龄73岁(47-83岁)。[结果]所有患者术后均无疼痛，无并发症，无假体问题。术后屈曲范围为122度。活动型术后屈曲范围维持在127°。[讨论]手术操作是最重要的。在茶点后达到屈膝的深度。植入物的设计不应被认为是进行深度屈曲；而是允许深度屈曲。长期的结果应在未来继续关注。

【Introduction】Total knee arthroplasty (TEA) has proven to be a successful procedure for the relief of pain and restoration of daily activities. However, the range of motion after TEA is not satisfactory for Asian life style. Insall and Kondo reported that the clearance behind the condyles of the distal femur increased the range of motion in flexion. We took this procedure into our operation. We gained generally further 15 degrees in flexion.【Material and Method】We performed 40 total knee arthroplasties (34 osteoarthrosis patients) with LPS-FLEX with our special surgical technique. The patients averaged 73 years of age (range ; 47-83). We evaluated the clinical symptoms and the range of motion.【Results】Postoperatively all patients had no pain, no complications, and no component troubles. Postoperatively, the flexion range is 122 degrees. In mobile type, the flexion range is maintained at 127 degrees after operation.【Discussion】The operative procedure is most important for. attaining the deep range of knee flexion after TEA. The implant design should not be considered to conduct a deep flexion; but to allow a deep flexion. The long term results should be followed in future.