Biviji Ayaz A, Ezzet Kace A, Pulido Pamela, Colwell Clifford W
Orange Orthopedic Medical Group, Orange, CA, USA.
J Arthroplasty. 2009 Jun;24(4):625-30. doi: 10.1016/j.arth.2008.03.015. Epub 2008 Jun 4.
Outcomes of femoral head and nonconstrained liner exchange in treating hip instability were evaluated. Forty-eight modular component exchanges performed in 45 patients for recurrent hip dislocations were retrospectively reviewed. Mean follow-up was 4.7 years. Overall success rate was 73% (35/48 hips). Thirty-two (67%) of 48 hips experienced no further dislocations. Three patients had 1 dislocation each with no subsequent dislocations. Ten patients (13 hips) had additional surgery to stabilize their hips (27% failure rate). Demographic, clinical, and implant variables were not associated with outcome. Isolated modular component exchange can be successful in treating recurrent hip dislocations; however, a significant failure rate, not easily predicted, exists. This represents the largest series of modular head and nonconstrained liner exchange for hip dislocation (122/125).
评估了股骨头及非限制型衬垫置换治疗髋关节不稳定的疗效。对45例患者进行的48次模块化组件置换以治疗复发性髋关节脱位进行了回顾性分析。平均随访时间为4.7年。总体成功率为73%（48髋中的35髋）。48髋中有32髋（67%）未再发生脱位。3例患者各发生1次脱位，之后未再脱位。10例患者（13髋）接受了额外的手术以稳定髋关节（失败率27%）。人口统计学、临床和植入物变量与疗效无关。单纯模块化组件置换治疗复发性髋关节脱位可能成功；然而，存在不易预测的显著失败率。这是关于髋关节脱位的模块化股骨头及非限制型衬垫置换的最大系列研究（122/125）。
