四种与Kessler相关的屈肌腱缝合方法的生物力学研究

Biomechanical study of four modified Kessler flexor tendon suture techniques

目的研究四种与Kessler相关的屈肌腱缝合方法对肌腱修复抗张强度的影响。方法采用新鲜猪后肢跖深屈肌腱，将40根肌腱分为4组，每组10根，横行切断，以Kessler法、Double Kessler法、Running suture法、Kessler＋Running suture法缝合。检测缝合后肌腱2舢间隙形成的负荷、最大抗张强度，采用ANOVA法进行统计分析。结果对于肌腱的横断伤，最大抗张强度Double Kessler法〉Kessler＋Running suture法〉Kessler法〉Running suture法。2mm间隙形成的负荷Kessler＋Running suture法〉Double Kessler法〉Running suture法〉Kessler法。结论肌腱横行损伤修复时，采用强生3-0编织缝合线，Kessler＋Running suture法能够满足临床早期功能锻炼的强度要求。

Objective To compare tensile strength of four different modified Kessler flexor tendon suture techniques. Methods Forty flexor digitorum profundus tendons of white pig hind limbs were transected and repaired using 4 suture techniques, with 10 tendons for each technique. The four suture techniques were Kessler, Double Kessler, Running suture and Kessler plus Running suture. After suturing, 2 mm gap formation force and failure load of the sutures were tested. One-way ANOVA was applied for statistic comparison of each technique. Results Double Kessler suture technique has the greatest tensile strength with its failure load, followed by Kessler plus Running suture, Kessler and Running suture. Kessler plus Running suture method had the greatest 2 mm gap formation force, followed by Double Kessler, Running suture and Kessler technique. Conclusion Kessler plus Running suture can better endure early finger active mobilization.