Tensile properties of the superior glenohumeral and coracohumeral ligaments.
Tensile properties of the superior glenohumeral and coracohumeral ligaments.
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DOI：
10.1016/s1058-2746(96)80050-4
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发表时间：
1996-07-01
影响因子：
3
通讯作者：
Woo, S L
中科院分区：
文献类型：
--
作者：
Boardman, N D;Debski, R E;Woo, S L
最近的证据表明，盂肱上韧带（SGHL）和喙肱韧带（CHL）是重要的静态稳定器。为了阐明这两条韧带的功能，我们用新鲜肩周炎、10 个 SGHL 和 10 个 CHL 的骨-韧带-骨复合物研究了它们的拉伸特性。测量每个韧带的横截面积，并对每个复合体进行单轴拉伸测试。每个骨-韧带-骨复合体的刚度、极限载荷、伸长率和破坏时吸收的能量均来自其载荷-伸长曲线。喙肱韧带的横截面积明显大于其中部的上盂肱韧带的横截面积（CHL，53.7 +/- 3.2 mm2 vs. SGHL，11.3 +/- 1.6 mm2，p < 0.05）。结果还显示，两种韧带的拉伸性能之间存在显着差异，喙肱韧带具有更大的刚度（CHL，36.7 +/- 5.9 N/mm vs. SGHL，17.4 +/- 1.5 N/mm，p < 0.05）和极限载荷（CHL，359.8 +/- 40.3 N vs. SGHL，101.9 +/- 11.5） N, p < 0.05) 高于盂肱上韧带。我们的研究结果证实喙肱韧带是盂肱关节重要的囊韧带结构。
Recent evidence has shown that the superior glenohumeral ligament (SGHL) and coracohumeral ligament (CHL) are important static stabilizers. To clarify the function of these two ligaments, we studied their tensile properties with bone-ligament-bone complexes from fresh-frozen shoulders, 10 SGHLs and 10 CHLs. Each ligament's cross-sectional area was measured, and uniaxial tensile testing of each complex was performed. The stiffness, ultimate load, percent elongation, and energy absorbed to failure of each bone-ligament-bone complex were derived from its load-elongation curve. The cross-sectional area of the coracohumeral ligament was significantly greater than that of the superior glenohumeral ligament of their midportions (CHL, 53.7 +/- 3.2 mm2 vs. SGHL, 11.3 +/- 1.6 mm2, p < 0.05). Results also reveal significant differences between the tensile properties for the two ligaments, with the coracohumeral ligament possessing greater stiffness (CHL, 36.7 +/- 5.9 N/mm vs. SGHL, 17.4 +/- 1.5 N/mm, p < 0.05) and ultimate load (CHL, 359.8 +/- 40.3 N vs. SGHL, 101.9 +/- 11.5 N, p < 0.05) than the superior glenohumeral ligament. Our findings confirm that the coracohumeral ligament is an important capsuloligamentous structure of the glenohumeral joint.