Boyce T, Youm Y, Sprague B L, Flatt A E
J Hand Surg Am. 1978 Jul;3(4):390-4. doi: 10.1016/s0363-5023(78)80046-x.
Digital ulnar drift in the rheumatoid hand is a complex problem. The radial deformity of the wrist causes abnormal forces on the extrinsic flexor and extensor tendons which aggravate metacarpophalangeal ulnar drift. Analysis of the results of the transfer of the extensor carpi radialis longus to the extensor carpi ulnaris in 20 wrists showed that 13 of 20 had significant correction of the wrist deformity. The transferred tendon did not contract during active ulnar deviation. Laboratory studies of the transfer on cadaveric rheumatoid wrist models showed correction of the wrist deformity. The dorsal ulnar capsule was determined to be a stabilizer of wrist position, as evidenced by deformity after transection.
类风湿性手部的数字尺侧偏移是一个复杂的问题。腕部的桡侧畸形会在外在屈肌腱和伸肌腱上产生异常力，从而加重掌指关节尺侧偏移。对20例腕部进行桡侧腕长伸肌转移至尺侧腕伸肌的结果分析表明，20例中有13例腕部畸形得到了显著矫正。在主动尺侧偏斜时，转移的肌腱没有收缩。在尸体类风湿性腕部模型上对该转移进行的实验室研究显示腕部畸形得到了矫正。经横断后出现畸形证明，背侧尺侧关节囊被确定为腕部位置的稳定器。
