Neyret P, Donell S T, Dejour H
Service de Chirurgie Orthopédique et Traumatologique, Centre Hospitalier Lyon-Sud, France.
Br J Rheumatol. 1994 Mar;33(3):267-8. doi: 10.1093/rheumatology/33.3.267.
The relationship between age at meniscectomy and the time to developing OA requiring an operation was studied. A total of 63 patients (7.8% of those presenting for an operation for OA) had had a previous meniscectomy. It was found that there was a strong correlation between the age at meniscectomy and the time delay (r = -0.68, P < 0.0001). The equation for the regression line was y = -0.68x + 41.8, where y = the delay in years between meniscectomy and operation for OA, and x = the age at meniscectomy. It was noted that there were two distinct populations, those < or = 35 yr old with a mean delay of 26 yr (95% CI 20.8-31.4), and those > 35 yr old with a mean delay of 9.8 yr (95% CI 7.5-12.2). The development of OA requiring an operation following meniscectomy depends on the age at meniscectomy and the time delay. To show an increase rate of OA following meniscectomy in a young population would require follow-up of at least 26 yr.
研究了半月板切除术时的年龄与发生需要手术治疗的骨关节炎的时间之间的关系。共有63例患者（占因骨关节炎接受手术患者的7.8%）曾接受过半月板切除术。研究发现，半月板切除术时的年龄与时间延迟之间存在很强的相关性（r = -0.68，P < 0.0001）。回归线方程为y = -0.68x + 41.8，其中y = 半月板切除术与骨关节炎手术之间的延迟年数，x = 半月板切除术时的年龄。值得注意的是，有两个不同的群体，年龄≤35岁的群体平均延迟26年（95%置信区间20.8 - 31.4），年龄>35岁的群体平均延迟9.8年（95%置信区间7.5 - 12.2）。半月板切除术后发生需要手术治疗的骨关节炎取决于半月板切除术时的年龄和时间延迟。要显示年轻人群半月板切除术后骨关节炎的增加率，至少需要随访26年。
