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首页> 外文期刊>Journal of orthopaedic research >In vivo three-dimensional motion analysis of the forearm with radioulnar synostosis treated by the Kanaya procedure.
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In vivo three-dimensional motion analysis of the forearm with radioulnar synostosis treated by the Kanaya procedure.

机译：通过Kanaya程序治疗的放射性尺骨前突的前臂的体内三维运动分析。

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摘要

Attempts to separate congenital radioulnar synostosis and restore forearm rotation had been disappointing until a new mobilization technique was developed by Kanaya and colleagues using free vascularized fascio-fat graft interposition. This technique provides a functional rotation arc, but postoperative forearm motion is difficult to evaluate given the inaccuracies in determining the range of motion and rotational axis using conventional x-rays or computed tomography. This study represents an attempt to analyze in vivo three-dimensional motion of the forearm with radioulnar synostosis treated by Kanaya's operation using a markerless bone registration technique. Six patients with seven postoperative forearms (six with congenital and one with posttraumatic radioulnar synostosis) underwent 3D computed tomography with the forearm in neutral, fully pronated, and fully supinated positions. Range of motion according to this method was 30 +/- 18 degrees, significantly smaller than the 82 +/- 29 degrees from manual examination. Improvements in range of motion were significantly greater in cases without dislocation of the radial head (46 +/- 13 degrees) than in cases with dislocation (19 +/- 10 degrees). Dislocation of the radial head was also significantly correlated with an abnormal axis of rotation of the forearm.
机译：分离先天性放射性尺骨突触和恢复前臂旋转的尝试一直令人失望，直到Kanaya及其同事开发了一种新的动员技术，使用游离的血管化筋膜脂肪移植物。这项技术可提供功能性的旋转弧度，但是鉴于使用传统X射线或计算机断层扫描技术无法确定运动范围和旋转轴的范围时，术后前臂运动难以评估。这项研究代表了一种尝试，通过无标记骨注册技术，通过金屋氏手术治疗的放射性尺骨前突的前臂在体内的三维运动。 6例具有7个术后前臂的患者（6例先天性，1例为创伤后放射性尺骨骨ost病）接受了3D计算机断层扫描，前臂处于中性，完全旋前和完全仰卧位。根据此方法的运动范围为30 +/- 18度，明显小于手动检查的82 +/- 29度。没有head骨头脱位（46 +/- 13度）的情况下，运动范围的改善明显大于脱位（19 +/- 10度）的情况。 head骨头脱位也与前臂旋转轴异常显着相关。

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