Buford William L, Snijders Joris W, Patel Vikas V, Curry Cody M, Smith Brian A
Department of Orthopedic Surgery and Rehabilitation, University of Texas Medical Branch, Galveston, TX 77555, USA.
Annu Int Conf IEEE Eng Med Biol Soc. 2012;2012:3348-51. doi: 10.1109/EMBC.2012.6346682.
In this project 3D interactive models of twelve cadaver elbows are developed using the author's kinematic simulation software. The effective flexion-extension axes for each specimen's model are iteratively defined based upon congruent joint motion and individual limits in range-of-motion. Origins and insertions of both parts of the medial collateral ligament are digitized following careful dissection of each specimen. Ligament paths are then defined using cubic B-spline models of the principal fibers of each part, flexion extension motion of each elbow is carried out in real-time and the strain of each fiber model is calculated. Results indicate the existence of two distinct populations of medial collateral ligament - one whose anterior part stretches during flexion of the elbow and the other whose anterior part stretches during extension.
在本项目中，使用作者的运动学模拟软件开发了12个尸体肘部的三维交互式模型。每个标本模型的有效屈伸轴是根据关节的一致运动和个体运动范围限制反复定义的。在仔细解剖每个标本后，对内侧副韧带两部分的起止点进行数字化处理。然后使用各部分主要纤维的三次B样条模型定义韧带路径，实时进行每个肘部的屈伸运动，并计算每个纤维模型的应变。结果表明，内侧副韧带存在两个不同的群体——一个群体的前部在肘部屈曲时伸展，另一个群体的前部在伸展时伸展。
