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An anatomical study of radial nerve branches to triceps brachii muscle

姜宗圆, Tao Wang, 杨剑云, 顾玉东

Open publisher page 1 citations

Abstract

目的明确桡神经肱三头肌肌支在上臂的解剖学特征.方法成人上肢标本36侧,自腋部至上臂内侧解剖桡神经干,测量肱三头肌各肌支的发出点、入肌点和长度,各肌支的直径和面积比.观察及测量各肌支的无损伤分离长度.结果桡神经肱三头肌肌支按其分布分为Ⅰ、Ⅱ、Ⅲ型,分别占47.22%(17/36)、22.22%(8/36)和30.56%(11/36).长头肌支长[(46.82 ± 10.08)mm, ± s,下同],发出点距背阔肌腱止点下缘近端(7.36 ± 2.68)mm,入肌点距背阔肌腱止点下缘远端(39.46 ± 6.42)mm.内、外侧头肌支长(66.08 ±30.98)mm和(65.81 ± 30.65)mm.长头肌支和内、外侧头肌支的无损伤分离长度是(48.93± 9.27)mm、(44.22 ± 11.65)mm和(44.64 ± 9.04)mm.无损伤分离最高点平面各肌支与主干面积比为(0.13 ± 0.07)mm、(0.26 ± 0.14)mm和(0.12 ± 0.07)mm.结论长头肌支发出点较固定,至入肌点距离较短,无损伤分离平面高,其近端可与同侧第3 ~ 6肋间神经直接缝合,适合于肋间神经移位重建肱三头肌功能.

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目的明确桡神经肱三头肌肌支在上臂的解剖学特征.方法成人上肢标本36侧,自腋部至上臂内侧解剖桡神经干,测量肱三头肌各肌支的发出点、入肌点和长度,各肌支的直径和面积比.观察及测量各肌支的无损伤分离长度.结果桡神经肱三头肌肌支按其分布分为Ⅰ、Ⅱ、Ⅲ型,分别占47.22%(17/36)、22.22%(8/36)和30.56%(11/36).长头肌支长[(46.82 ± 10.08)mm, ± s,下同],发出点距背阔肌腱止点下缘近端(7.36 ± 2.68)mm,入肌点距背阔肌腱止点下缘远端(39.46 ± 6.42)mm.内、外侧头肌支长(66.08 ±30.98)mm和(65.81 ± 30.65)mm.长头肌支和内、外侧头肌支的无损伤分离长度是(48.93± 9.27)mm、(44.22 ± 11.65)mm和(44.64 ± 9.04)mm.无损伤分离最高点平面各肌支与主干面积比为(0.13 ± 0.07)mm、(0.26 ± 0.14)mm和(0.12 ± 0.07)mm.结论长头肌支发出点较固定,至入肌点距离较短,无损伤分离平面高,其近端可与同侧第3 ~ 6肋间神经直接缝合,适合于肋间神经移位重建肱三头肌功能.

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Available abstract

目的明确桡神经肱三头肌肌支在上臂的解剖学特征.方法成人上肢标本36侧,自腋部至上臂内侧解剖桡神经干,测量肱三头肌各肌支的发出点、入肌点和长度,各肌支的直径和面积比.观察及测量各肌支的无损伤分离长度.结果桡神经肱三头肌肌支按其分布分为Ⅰ、Ⅱ、Ⅲ型,分别占47.22%(17/36)、22.22%(8/36)和30.56%(11/36).长头肌支长[(46.82 ± 10.08)mm, ± s,下同],发出点距背阔肌腱止点下缘近端(7.36 ± 2.68)mm,入肌点距背阔肌腱止点下缘远端(39.46 ± 6.42)mm.内、外侧头肌支长(66.08 ±30.98)mm和(65.81 ± 30.65)mm.长头肌支和内、外侧头肌支的无损伤分离长度是(48.93± 9.27)mm、(44.22 ± 11.65)mm和(44.64 ± 9.04)mm.无损伤分离最高点平面各肌支与主干面积比为(0.13 ± 0.07)mm、(0.26 ± 0.14)mm和(0.12 ± 0.07)mm.结论长头肌支发出点较固定,至入肌点距离较短,无损伤分离平面高,其近端可与同侧第3 ~ 6肋间神经直接缝合,适合于肋间神经移位重建肱三头肌功能.

Key concepts: Anatomy, Radial nerve, Medicine

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