联合肌腱转位手术对肩关节稳定作用的生物力学研究  

BIOMECHANICAL ANALYSIS OF THE CONJOINED TENDON IN THE SHOULDER

作　　者：周之德[1] 蒋雷生[1] 崔一民[1] 

机构地区：[1]上海第二医科大学附属新华医院

出　　处：《医用生物力学》1994年第4期222-226,230,共6页Journal of Medical Biomechanics

摘　　要：本文对８具尸体肩关节中联合肌腱（肱二头肌短头和喙肱肌）进行前方稳定性作用的生物力学分析。将上臂置于外展９０°，外旋９０°位，对肱骨头施以１５Ｎ前移力。然后右肩关节囊完整或破损、联合肌腱原位或转位（移位到肩胛下肌和关节囊之间）。对联合肌腱施加０Ｎ、１５Ｎ或３０Ｎ的载荷情况下，通过三维测量仪分别监测肱骨头的位置。结果显示在所有上述情况下随着联合肌腱负载的增加，肱骨头的前移减少。特别是在关节囊破损、联合肌腱转位后，联合肌腱对肱骨头的这种阻挡前移作用最为显著。由此我们认为当上臂处于外展外旋位时，联合肌腱对孟肱关节有前方稳定功能，并且在肩关节不稳定、联合肌腱转位后这种功效更为突出。The biomechanics of the conjoined tendon(the short head of the biceps and the coracobrachialis muscle) to anterior stability was investigated in 8 cadaver shoulders.Translation tests at 90°abduction and 90°external rotation of the arm were performed by a 1.5 Kg anterior force.The position of the humeral head was monitored by a trimensional tracking device with the conjoined tendon at the original position of transfered under the subscapularis muscle;with 0 Kg,1.5 Kg Or 3 Kg loads applied on the conjoined tendon;and with the capsule intact or damaged by a Bankart lesion.the anterior displacement of the humeral head under 1.5 Kg force was significantly decreased with increasing conjoined tendon loading,especially when the conjoined tendon transfered in the capsular-damaged shoulder.

关 键 词：肩关节 生物力学 肌腱转位手术 

分 类 号：R318.01[医药卫生—生物医学工程] R687.2[医药卫生—基础医学]