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Abstract：
Objective To identify the location of the Riché-Cannieu anastomosis (RCA) in relation to the Cardinal Kaplan Line (KCL) and the Y line. Methods A total of 20 hands of 10 recently-deceased adult male cadavers aged between 27 and 66 years were dissected for the investigation of the relationship of the most distal point of the RCA with the KCL and with the Y line, drawn from the axis of the third metacarpal head, following the longitudinal axis of the hand. Results In 20 limbs, the most distal point of the nerve communication was positioned distally in relation to the KCL. The Y line was positioned on the radial side in relation to the most distal point of the RCA in 14 limbs, and it was positioned on the ulnar side in relation to the Y line in 6 limbs. The crossing between the KCL and the Y line occurred proximal to the RCA in 18 limbs; in 1 hand, it was positioned distal to the intersection between these lines; and in another hand, the KCL was positioned exactly on the RCA. Conclusion Knowledge of these anatomical relationships can prevent damage to nerve branches and thus also prevent paralysis of intrinsic muscles in surgical procedures in the palm of the hand.
摘要：
目的确定Riché-Cannieu吻合术（RCA）与基数卡普兰线（KCL）和Y线的关系。方法对10具年龄在27至66岁之间的成年男性尸体的20只手进行解剖，以调查RCA的最远点与KCL和Y线的关系。从第三掌骨头的轴线绘制，跟随手的纵轴。结果在20个肢体中，神经通讯的最远点位于相对于KCL的远端。Y线位于14个肢体中相对于RCA最远点的径向侧，它位于尺侧，相对于6个肢体的Y线。KCL和Y线的交叉发生在18个肢体的RCA近端；在一只手中，它位于这些线之间的交叉点的远端；另一方面，KCL位于RCA上.结论了解这些解剖关系可以防止神经分支的损伤，从而防止手掌外科手术中内在肌肉的麻痹。
