摘要
目的对两种肌腱缝合方法的生物力学特性进行对比研究，为临床肌腱修复术对缝合方法的选择提供理论依据。方法收集30根完整的废弃肌腱，随机分为两组，从中间锐性切断。A组：采用新创ZM缝合法缝合肌腱；B组：采用改良Kessler缝合法缝合肌腱，缝合后立即进行生物力学测试。测定2mm间隙形成负荷、最大负荷、最大间隙、断裂方式，计算所修复肌腱的强度，所得数据进行统计学分析。结果A组的2mm间隙形成负荷为（46．13±1．57）、最大负荷为（57.18±1．84）N、强度为（8．45±0．34）N／mm，均大于B组的2mm间隙形成负荷（15．02±0．67）N、最大负荷（28．63±1．95）N、强度（2．47±0．22）N／mm；A组的最大间隙（6．77±0．29）mm小于B组的最大间隙（11．62±0．94）mm；A组的缝线抽出率（0）小于B组缝线抽出率（100％）。结论ZM缝合法具有良好的抓持作用和强大的抗张力强度，可以满足屈肌腱修复术后早期无抗阻主动功能锻炼的需要。
Objective To compare the biomechanical properties of two tendon repair techniques and provide the theoretical basis for selecting the appropriate repair method for tendon repair surgery. Methods Thirty completely removed tendons were collected and allocated into two groups. All of the tendons were cut from the middle. In group A, the tendon was repaired by ZM suture technique; in group B, the tendon was repaired by modified Kessler suture technique. A series of biomechanical tests were conducted after tendon repair, including 2 ram-gap formation force, maximum load and maximum gap. The fracture mode was recoated and the rigidity of tendon repair calculated. Statistical analysis was done to compare data from the two repair groups. Results The 2 mm-gap formation force （46.13 ＋ I. 57 ）N, failure load （57.18 ＋ 1.84 ）N and stiffness（ 8.45± 0.34） N/ram of group A were greater than the 2 mm-gap formation force （15.02 ±0.67）N, failure load （28.63 ± 1.95） N and stiffness（2.47 ± 0.22 ） N/mm of group B. The maximum gap（ 6.77± 0.29） mm of group A was smaller than that of group B（11.62± 0.94）mm. The suture pull-out rate （0） of group A was lower than that of group B （100%）. Conduslon ZM suture technique has good grasping effect and tensile strength. It can meet the demands of functional exercise without resistance in the early postoperative period of a flexor tendon repair.
出处
《中华手外科杂志》
CSCD
北大核心
2012年第5期303-306,共4页
Chinese Journal of Hand Surgery
