旋前方肌紧缩术治疗陈旧性下尺桡关节背侧脱位

TREATMENT OF OLD DISLOCATION OF INFERIOR RADIO-ULNAR JOINT BY SHORTENING OPERATION OF PRONATOR QUADRTUS MUSCLE

陈旧性下尺桡关节由于关节盘和下尺桡背侧韧带损伤,造成尺骨小头向尺侧、背侧移位。旋前方肌紧缩术把该肌起点从尺骨前缘移到背侧,这样无论旋前方肌收缩或者松弛,张力均增大。将尺骨小头向桡侧、掌侧牵拉,恢复了下尺桡关节正常的解剖位置和应力分布,近4年来,治疗患者11例,经过4个月～4年半随访,疗效优9例、良2例。

The dorsal dislocation inferior radio-ulnar joint was treated by the shortening operation of the pronator quadratus muscle by moving the muscle origin to its dorsum, so that the pronator quadratus muscle was always under tension whether the muscle was contracted or relaxed. Thus the anatomic position and stress distribution were improved. We had treated 11 patients in the past four years.The patients were followed from four months to four and half years and the results were 9 patients excellent and 2 good.