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目的 :为桡侧副血管蒂前臂外侧皮瓣移植提供解剖学依据。方法 :在 45侧灌注红色乳胶的成人上肢标本上观察了桡侧副动脉的来源、走行及其在肘关节部位的分支、分布和吻合。结果 :桡侧副动脉在距肱骨外上髁 ( 7.7±1.0 )cm处分为掌侧支和背侧支 ,背侧支在肱骨外上髁上方 ( 1.4± 0 .3 )cm处分为前支和后支 ,前支跨越肘关节到达前臂 ,以 2～ 4个皮支分布于前臂外侧的皮肤 ,其分支点外径为 ( 0 .8± 0 .2 )mm ,前支在桡骨颈平面和桡侧返动脉相吻合的占72 % ,可切取的皮瓣面积约 15cm× 5cm。结论 :以桡侧副动脉为蒂的前臂外侧皮瓣转位可修复肘部、上臂和颈部的软组织缺损 ,亦可吻合血管游离移植修复手、足部和面颈部的软组织缺损 ,还可形成臂外侧下部、前臂外侧大型皮瓣或复合组织瓣 ,修复大面积的软组织缺损。
Objective: To provide anatomical basis for radial forearm lateral pedicle flap transplantation. Methods: The origin, course and branch, distribution and anastomosis of radial artery were observed on the adult upper limbs with 45 sides infused with red latex. Results: The radial artery was divided into the palmar and dorsal branches at a distance of (7.7 ± 1.0) cm from the lateral epicondyle of the humerus. The dorsal branches were divided into the anterior branch and the superior branch of the humerus (1.4 ± 0.3 cm) Posterior branch, anterior branch across the elbow reached the forearm, with 2 to 4 branches distributed in the lateral skin of the forearm, the branch point diameter (0.8 ± 0.2) mm, anterior branch in the radial neck plane and radial Side of the return artery coincide 72%, cut the flap area of about 15cm × 5cm. Conclusion: The transposition of the lateral forearm flap pedicled on the radial sideral arteries can repair the soft tissue defect of the elbow, upper arm and neck, and can also repair the soft tissue defects of the hands, feet and face and neck by vascular anastomosis. The lower part of the outer arm is formed, large flaps of the forearm or composite tissue flaps are repaired to repair large area soft tissue defects.