Ranz Ellyn C, Wilken Jason M, Gajewski Donald A, Neptune Richard R
a Department of Mechanical Engineering , The University of Texas at Austin , Austin , TX , USA.
b Center for the Intrepid , Brooke Army Medical Center, JBSA Fort Sam Houston , TX , USA.
Comput Methods Biomech Biomed Engin. 2017 Aug;20(11):1167-1174. doi: 10.1080/10255842.2017.1340461. Epub 2017 Jun 26.
Many factors influence successful outcomes following transfemoral amputation. One factor is surgical technique. In this study, the influence of limb alignment and surgical technique on a muscle's capacity to generate force was examined using musculoskeletal modeling. Non-amputee and transfemoral amputee models were analyzed while hip adduction, femur length, and reattached muscle wrap position, tension and stabilization technique were systematically varied. With muscle tension preserved, wrap position and femur length had little influence on muscle capacity. However, limb alignment, muscle tension and stabilization technique notably influenced muscle capacity. Overall, myodesis stabilization provided greater muscle balance and function than myoplasty stabilization.
许多因素会影响经股截肢术后的成功预后。其中一个因素是手术技术。在本研究中，使用肌肉骨骼模型研究了肢体对线和手术技术对肌肉产生力量能力的影响。对非截肢者和经股截肢者模型进行了分析，同时系统地改变了髋关节内收、股骨长度以及重新附着的肌肉包裹位置、张力和固定技术。在保持肌肉张力的情况下，包裹位置和股骨长度对肌肉能力影响不大。然而，肢体对线、肌肉张力和固定技术对肌肉能力有显著影响。总体而言，肌固定术固定比肌成形术固定能提供更好的肌肉平衡和功能。
