Heim U
Ann Chir Main. 1982;1(2):183-6. doi: 10.1016/s0753-9053(82)80075-6.
Diagnosis of tears of the ulnar collateral ligament of the metacarpophalangeal joint of the thumb is often made by dynamic radiography. In contrary to the usual technic, the best position is forced pronation of the hand. The metacarpal and the first phalanx are horizontal on the X ray plate. The patient is encouraged to push the tip of his thumb against an object thus obtaining a forced abduction. The two hands can be held in place with a tight bandage. This yields a simultaneous and symmetrical image of the two thumbs on the same film.
拇指掌指关节尺侧副韧带撕裂的诊断通常通过动态放射照相术进行。与常规技术相反，最佳位置是手部强制旋前。在X线片上，掌骨和第一指骨呈水平位。鼓励患者将拇指尖抵在物体上，从而实现强制外展。可用紧绷带将双手固定在位。这样可在同一张胶片上同时获得两个拇指的对称图像。
