Ali Khan M A, Brakenbury P H, Reynolds I S
J Bone Joint Surg Br. 1981;63-B(2):214-8. doi: 10.1302/0301-620X.63B2.7217144.
An analysis of 142 dislocations from a multicentre study of 6774 total hip replacements is reported. The incidence of dislocation was 2.1 per cent. Patients with neuromuscular disorder, those in a confused mental state, and those undergoing revision operations are at special risk. The commonest surgical error, present in nearly half the patients, was placing the acetabular cup too vertically or too anteverted. A less common fault was placing the femoral component too anteverted. Neither the original pathology nor the approach to the hip appeared to affect the likelihood of dislocation. The dislocations were divided into early and late, single and recurrent, and the success rate of treatment is described in these groups. One hundred and eleven patients (78.2 per cent) eventually obtained stability. Of those with a single dislocation, 62 per cent remained stable after a single manipulation. Thirty-four per cent of the patients required an open operation to achieve stability and it is suggested that, in many cases, open reduction alone is not enough; the mechanical fault needs to be corrected.
报道了一项对6774例全髋关节置换术的多中心研究中的142例脱位病例的分析。脱位发生率为2.1%。患有神经肌肉疾病的患者、精神状态混乱的患者以及接受翻修手术的患者处于特殊风险中。最常见的手术失误（近一半患者存在）是髋臼杯放置过于垂直或前倾。一个不太常见的错误是股骨组件放置过于前倾。最初的病理情况和髋关节手术入路似乎都不影响脱位的可能性。脱位被分为早期和晚期、单次和复发性，并描述了这些组别的治疗成功率。111例患者（78.2%）最终获得了稳定。在单次脱位的患者中，62%在单次手法复位后保持稳定。34%的患者需要进行开放手术以实现稳定，并且有人提出，在许多情况下，仅开放复位是不够的；机械故障需要纠正。
