Kavanagh B F, Dewitz M A, Ilstrup D M, Stauffer R N, Coventry M B
Mayo Clinic, Rochester, Minnesota 55905.
J Bone Joint Surg Am. 1989 Dec;71(10):1496-503.
The results of the first 333 Charnley total hip arthroplasties that were performed with cement at the Mayo Clinic were reviewed a minimum of fifteen years postoperatively. Data were available for 166 of 170 hips of patients who were still alive. One hundred and thirty patients died, and thirty-seven hips were revised. At the time of this study, 80 per cent of the living patients had no pain, and 152 of the 160 hips remained much better than before the operation. Kaplan-Meier analysis of probable loosening of one or both components, on the basis of roentgenographic evidence, demonstrated a probability of loosening of 3 per cent incidence at one year after operation, 13 per cent at five years, 19 per cent at ten years, and 32 per cent at fifteen years. The probability of failure (that is, revision or symptomatic loosening) was 0.9 per cent at one year, 4.1 per cent at five years, 8.9 per cent at ten years, and 12.7 per cent at fifteen years. We did not identify a dramatic increase in the incidence of loosening or failure at any of the follow-up periods (one, five, ten, or fifteen years). With the Mayo Clinic clinical and roentgenographic system for scoring the hips, we found that ninety-seven hips had a good or excellent result; fifteen, a fair result; and thirteen, a poor result. (The scoring could not be completed for forty-one hips). The functional results deteriorated slightly over time.(ABSTRACT TRUNCATED AT 250 WORDS)
对梅奥诊所首次采用骨水泥进行的333例Charnley全髋关节置换术的结果进行了术后至少15年的回顾。170例患者中有166例患者的髋部有可用数据，这些患者仍在世。130例患者死亡，37例髋部进行了翻修。在本研究时，80%的在世患者无疼痛，160例髋部中有152例仍比手术前情况好得多。基于X线证据，对一个或两个假体可能松动进行的Kaplan-Meier分析显示，术后1年松动发生率为3%，5年为13%，10年为19%，15年为32%。失败（即翻修或有症状性松动）的概率在1年时为0.9%，5年时为4.1%，10年时为8.9%，15年时为12.7%。在任何随访期（1年、5年、10年或15年），我们均未发现松动或失败发生率有显著增加。采用梅奥诊所髋部临床和X线评分系统，我们发现97例髋部结果为良好或优秀；15例为一般；13例为差（41例髋部无法完成评分）。随着时间推移，功能结果略有恶化。（摘要截选至250词）
