中轴远距离包埋缝合法治疗屈肌腱断裂的实验研究

目的介绍作者设计的可减少粘连的屈指肌腱中轴远距离包埋缝合法.方法用60条新鲜尸体屈指肌腱标本,行中轴远距离包埋缝合法、Kessler法和Bunnell法缝合肌腱,观察在肌腱断端间隙形成、间隙为2 mm及断裂时的抗张强度,并进行生物力学测定比较.用30只纯种Dick鸡做屈指深肌腱切断模型,进行本法及Kessler法缝合,术后分别于3周、4周和6周处死动物,进行大体及光镜观察肌腱愈合及粘连情况.结果中轴远距离包埋缝合法平均抗张强度优于Kessler法及Bunnell法,肌腱粘连轻,愈合效果优于Kessler法.结论中轴远距离包埋缝合法抗张强度符合临床要求,术后可早期进行主动活动,减少粘连.

Experimental study of suture of core long-distance buried for repair of flexor tendon rupture

ObjectiveTo adopt a new suture technique the core long-distance buried for repair of flexor tendon rupture which was designed by author and could lessen adhesion.Methods60 human cadaver flexor digitorum tendons were divided into 3 groups and sewed by core long-distance buried suture, Kessler's technique and Bunnell's technique respectively. Instron-testing machine was used to test gap formation force, 2 mm gap formation force and maximum load. 30 hen second and third toe flexor profundus tendons were divided into 2 groups, each group of tendons were transected and repaired by core long-distance buired suture and Kessler's technique respectively. Information of tendon healing and tendon adhesion was observed in the 3rd, 4th and 6th weeks after operation.ResultsIn the group of using core long-distance buried suture technique, the gap formation, 2 mm gap formation and maximum load in were higher than that using Kessler's technique and Bunnell's technique, the effects of lessening adhesion and promoting tendon healing were better than that in the Kessler's technique group.ConclusionCore long-distance buried suture can offer great tensile strength needed by clinic, and allow early motion and lessen adhesion after operation.