Krotenberg R, Stitik T, Johnston M V
Kessler Institute for Rehabilitation, East Orange, New Jersey 07018, USA.
Am J Phys Med Rehabil. 1995 Nov-Dec;74(6):444-7. doi: 10.1097/00002060-199511000-00010.
Dislocation of a hip arthroplasty prosthesis is the most common serious complication after hip replacement. It is especially important in the rehabilitation setting because it is potentially preventable. The purpose of this study was to investigate differences in dislocation rates between rehabilitation and acute hospital settings. A retrospective chart review of total hip and bipolar hemiarthroplasty patients admitted to three rehabilitation hospitals was performed. Dislocation rates among 825 rehabilitation patients who met study eligibility criteria were compared with rates found among 5352 acute care patients reported in the published literature. The rate of hip dislocation among total hip replacement patients in rehabilitation hospitals was not significantly higher than that in acute settings (2.17% v 1.27%). Among bipolar hemiarthroplasty patients, however, the dislocation rate was markedly and significantly lower in rehabilitation than in acute settings (0% v 1.95%, P < 0.01). Possible reasons for these results are discussed. Further research is needed to identify risk factors more precisely for prosthesis dislocation.
髋关节置换术后假体脱位是髋关节置换术后最常见的严重并发症。在康复环境中，这一点尤为重要，因为它有可能预防。本研究的目的是调查康复机构与急症医院之间脱位率的差异。对三家康复医院收治的全髋关节置换和双极半髋关节置换患者进行了回顾性病历审查。将825例符合研究纳入标准的康复患者的脱位率与已发表文献中报道的5352例急症患者的脱位率进行了比较。康复医院全髋关节置换患者的髋关节脱位率并不显著高于急症医院（2.17%对1.27%）。然而，在双极半髋关节置换患者中，康复机构的脱位率明显低于急症医院（0%对1.95%，P<0.01）。讨论了这些结果可能的原因。需要进一步研究以更精确地确定假体脱位的危险因素。
