Division of Arthroplasty, Orthopedic Department, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada.
J Arthroplasty. 2011 Dec;26(8):1170-5. doi: 10.1016/j.arth.2011.04.022. Epub 2011 Jun 14.
Dislocation and infection are common complications of total hip arthroplasty (THA). This study evaluated the correlation between the number of revision THAs and the incidence of these complications. Data were obtained from 749 revision THAs. Average follow-up was 13.2 ± 5.9 years. Patients were grouped as first, second, third, and fourth or greater revision THA. Dislocation rates (5.68%, 7.69%, 8.33%, and 27.45%) and infection rates (1.35%, 1.92%, 2.5%, and 7.84%) in the first, second, third, and fourth or greater groups, respectively, correlated directly with the revision number and were highest (P < .001) in the fourth or greater group. Dislocation and infection are exponentially correlated with the number of revision THA. From the fourth revision onward, those risks are multiplied.
脱位和感染是全髋关节置换术（THA）的常见并发症。本研究评估了翻修 THA 数量与这些并发症发生率之间的相关性。数据来自 749 例翻修 THA。平均随访时间为 13.2±5.9 年。患者分为初次、第二次、第三次和第四次或更多次翻修 THA。在初次、第二次、第三次和第四次或更多次翻修组中，脱位率（5.68%、7.69%、8.33%和 27.45%）和感染率（1.35%、1.92%、2.5%和 7.84%）分别与翻修次数直接相关，且在第四次或更多次翻修组中最高（P<0.001）。脱位和感染与翻修 THA 的数量呈指数相关。从第四次翻修开始，这些风险会倍增。
