目的　探讨腕高率对判断RA腕骨塌陷的临床意义。方法　收集资料完整经临床确诊并摄双手腕正位像的RA 40例。按X线分期和有无掌指骨尺偏分 6组测量其腕高率。结果　早期Ρ( 3 6) =0 .5 12 ,中期Ρ( 2 6) =0 .5 14 ,晚期Ρ( 18) =0 .45 5。无尺偏组 :Ρ( 69) =0 .5 0 2 ,尺偏小于 15°组 :Ρ( 10 ) =0 .484,尺偏大于 15°组 :Ρ( 1) =0 .45 0。结论　腕高率对研究RA腕骨塌陷的发展或演变有十分重要的临床价值 Objective To investigate the clinical significance of wrist rate in judging RA carpal collapse. Methods The data were collected and clinically diagnosed 40 cases of right anterior cruciate carpus RA. According to the X-ray staging and the presence or absence of metacarpal bones partial sub-6 groups to measure the rate of wrist. Results Early Ρ (3 6) = 0. 5 12, mid-term Ρ (2 6) = 0.54 14, late Ρ (18) = 0 .45 5. No scale partial group: Ρ (69) = 0 .5 0 2, ruler less than 15 ° group: Ρ (10) = 0.484, ruler greater than 15 ° group: Ρ (1) = 0.450. Conclusion The rate of wrist hyperplasia has very important clinical value in studying the development or evolution of RA carpal collapse