Courtois B, Variel R, Le Saout J, Kerboul B, Lefèvre C
Int Orthop. 1985;9(3):189-93. doi: 10.1007/BF00268169.
Eighty seven dislocations were seen in 1571 consecutive total hip replacements, mostly performed through a posterior approach. Nine occurred immediately after operation and most of the remainder within 5 weeks. In 26 cases further dislocation occurred, and in 11 patients another operation was required. The 87 dislocated hips have been compared with the remaining 1484. Factors predisposing to dislocation included revision operations, the experience of the surgeon and proper reconstruction of the abductor musculature. When the hip was deemed unstable at the end of an operation, dislocation occurred on 18 occasions out of 20 such cases. The position of the components in the dislocated hips was compared with that in 100 stable prostheses chosen by random sampling. A vertical acetabular prosthesis, and retroversion of the acetabular and femoral components all favoured dislocation. In 331 replacements with a 22 mm diameter head 29 dislocations were seen (8.7%), whereas in 168 replacements with 32 mm heads, 5 dislocations occurred (2.9%).
在1571例连续进行的全髋关节置换术中，共出现87例脱位，大部分手术通过后路进行。9例发生在术后即刻，其余大部分发生在5周内。26例出现再次脱位，11例患者需要再次手术。将87例脱位髋关节与其余1484例进行了比较。易导致脱位的因素包括翻修手术、外科医生的经验以及外展肌的恰当重建。当手术结束时髋关节被认为不稳定时，20例此类病例中有18例发生脱位。将脱位髋关节中假体组件的位置与随机抽取的100个稳定假体的位置进行了比较。髋臼假体垂直以及髋臼和股骨组件后倾均易导致脱位。在331例使用直径22mm股骨头的置换术中，出现29例脱位（8.7%），而在168例使用32mm股骨头的置换术中，出现5例脱位（2.9%）。
