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題名 | Rubber Band Selection for a Dynamic Splint for Flexor Tendon Repair--A Finite Element Study= |
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作者 | Huang, Shan-yu; Lin, Yang-hua; Liu, Chien-lin; Wei, Shun-hwa; Feng, Chi-kuang; Chen, Chen-sheng; |
期刊 | Journal of Medical and Biological Engineering |
出版日期 | 20070900 |
卷期 | 27:3 2007.09[民96.09] |
頁次 | 頁156-160 |
分類號 | 416.26 |
語文 | eng |
關鍵詞 | Finger; Flexor tendon; Tendon repair; Finite element method; Biomechanics; |
英文摘要 | Early controlled movement contributes towards reducing adhesion formation and increases the tensile strength of the repaired flexor tendon. However, few studies have focused on rubber band selection for the dynamic flexion-assist splint. In order to determine the appropriate rubber band, this study conducted finite element (FE) analysis to evaluate the traction force in terms of (1) tendon elongation, (2) tendon excursion, and (3) tendon ultimate force. A 3D finger FE model was constructed to compare the motion analysis for validation. This FE model comprised cortical bone, cancellous bone, cartilage, a volar plate, soft tissue, a tendon, and a pulley system. The single rubber band stiffness of 0.0167 N/mm and double rubber band stiffness of 0.0334 N/mm were chosen for this study. This study indicated that the single rubber band stiffness of 0.0167 N/mm was sufficient to generate a traction force to achieve 3 mm tendon excursion while avoiding greater than 1 mm tendon elongation. |
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