Quantitative evaluation of the posterior deltoid to triceps tendon transfer based on muscle architectural properties
Quantitative evaluation of the posterior deltoid to triceps tendon transfer based on muscle architectural properties
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DOI：
10.1053/jhsu.2001.20161
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发表时间：
2001-01-01
影响因子：
1.9
通讯作者：
Lieber, RL
中科院分区：
文献类型：
--
作者：
Fridén, J;Lieber, RL
使用显微解剖技术测量后三角肌和三头肌的3个头的结构特性，以确定后三角肌替代三头肌功能在结构上是否合适。采用甲醛缓冲液对10具新鲜尸体标本的肌肉进行高压灌注固定。肌肉结构特性，包括羽状角，纤维束长度，肌节长度和生理横截面积，进行了测定。纤维束长度在三角肌（123.1 +/- 7.8 mm）、内侧（64.5 +/- 3.8 mm）、外侧（66.5 +/- 5.4 mm）和三头肌长头（85.3 +/- 9.5）之间差异显著。后三角肌的生理横截面积明显小于总三头肌面积，预计仅提供约20%的组合三头肌头的最大等长张力。这些数据表明，后三角肌的长纤维使其成为一个非常合适的转移，以提供肘关节伸展，因为它的巨大偏移，也表明了为什么有用的功能结果似乎相对独立于后三角肌张力在手术时。（J Hand Surg 2001; 26 A：247-155.美国手外科学会版权所有（C）2001。
The architectural properties of the posterior deltoid muscle and the 3 heads of the triceps were measured using microdissection techniques to determine whether substitution of triceps function by the posterior deltoid is architecturally appropriate. Muscles from 10 fresh cadaver specimens were fixed by high-pressure perfusion using buffered formaldehyde. Muscle architectural properties, including pennation angle, fiber bundle length, sarcomere length, and physiologic cross-sectional area, were determined. Fiber bundle length varied significantly among the deltoid (123.1 +/- 7.8 mm), medial (64.5 +/- 3.8 mm), lateral (66.5 +/- 5.4 mm), and long (85.3 +/- 9.5) heads of the triceps. The physiologic cross-sectional area of the posterior deltoid was significantly less than the total triceps area and was predicted to provide only approximately 20% of the maximum isometric tension of the combined triceps heads. These data demonstrate that the long fibers of the posterior deltoid render it a very suitable transfer to provide elbow extension because of its tremendous excursion and also show why useful functional results seem relatively independent of posterior deltoid tension at the time of surgery. (J Hand Surg 2001;26A:247-155. Copyright (C) 2001 by the American Society for Surgery of the Hand.).