Biomechanical evaluation of flexor tendon graft with different repair techniques and graft surface modification

Jingheng Wu, Andrew R. Thoreson, Ramona L. Reisdorf, Kai Nan An, Steven L. Moran, Peter C. Amadio, Chunfeng Zhao

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

The purpose of this study was to investigate the biomechanical properties of modified repair techniques for flexor tendon reconstruction and the effects of surface modification using carbodiimide-derivatized synovial fluid plus gelatin (cd-SF-G), compared to the traditional repair techniques. The second and fifth digits from 16 canine forepaws were randomly divided into 4 groups: (1) traditional graft repairs (TGR group) including distal Bunnell repair and proximal Pulvertaft weave repair; (2) modified graft repairs (MGR group) including distal graft bony attachment repair and proximal step-cut repair; (3) group TGR coated with cd-SF-G (TGR-C group); and (4) group MGR coated with cd-SF-G (MGR-C group). Digit normalized work of flexion (nWOF), ultimate failure strength, and stiffness were measured. The nWOF in MGR group was significantly less than TGR group (p < 0.05). The nWOF in groups treated with cd-SF-G was significantly less than their untreated counterparts (p < 0.05). Ultimate load to failure of the MGR-C group was significantly greater than the TGR-C group (p < 0.05), but no significant difference in stiffness was found between these two groups. The modified techniques cannot only improve tendon gliding abilities but can also improve breaking strength. Additionally, surface modification with cd-SF-G significantly decreased the work of flexion.

原文English
頁(從 - 到)731-737
頁數7
期刊Journal of Orthopaedic Research
33
發行號5
DOIs
出版狀態Published - 2015 5月 1

All Science Journal Classification (ASJC) codes

  • 骨科和運動醫學

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