前交叉韧带重建肌腱移植物内预置高强度缝线预防蠕变的实验研究  

Pre-implantation of high-intensity suture into tendon grafts to prevent postoperative graft relaxation and creep in anterior cruciate ligament reconstruction

作　　者：常晗[1] 唐翔宇[1] 曲峰[1] 申学振 王江涛[2] 刘玉杰[1] 

机构地区：[1]解放军总医院骨科,北京100853 [2]白求恩国际和平医院骨二科,石家庄050000

出　　处：《中国修复重建外科杂志》2017年第1期42-45,共4页Chinese Journal of Reparative and Reconstructive Surgery

摘　　要：目的探讨前交叉韧带(anterior cruciate ligament,ACL)重建术肌腱移植物预置高强度线防治术后移植物蠕变松弛的可行性。方法选取成年猪双侧跟腱制备ACL重建移植物标本36个,随机分为A、B、C、D4组,每组9个标本;其中A、C组为实验组,B、D组为对照组。A、C组肌腱内预置1根双股Ultrabraid高强度2号缝线。A、B组及C、D组分别进行1 000次及3 000次循环负荷试验,观察并测量各组移植物于100、500、1 000、2 000、3 000次循环时的松弛度,并测量C、D组的失效载荷。结果 A组各循环次数下移植物松弛度均小于B组,100、500、1 000次循环下两组松弛度比较差异有统计学意义(P<0.05);C组各循环次数下移植物松弛度均小于D组,差异均有统计学意义(P<0.05)。且C组失效载荷显著高于D组,差异有统计学意义(t=4.816,P=0.001)。结论 ACL重建术中肌腱移植物预置高强度缝线,对防止移植物松弛具有重要作用。Objective To explore the feasibility ofpre-implantation of high-intensity suture into tendon grafts to prevent postoperative graft relaxation and creep in anterior cruciate ligament （ACL） reconstruction. Methods Thirty-six specimens of ACL reconstruction graft were made using adult swine＇s Achilles tendon. All the specimens were randomly divided into experimental group （groups A and C） and control group （groups B and D）, 9 specimens each group. One double-strand Ultrabraid No.2 high-intensity suture was pre-implanted into the grafts of groups A and C. Groups A and B underwent a 1 000-cycles load test while groups C and D underwent a 3 000-cycles load test. Then a pull-out test was performed until failure. The displacements at different cycles （100, 500, 1 000, 2 000, and 3 000） in all groups and yield loads of groups C and D were measured and analyzed. Results The displacement of group A was significantly smaller than that of group B at the cycles of 100, 500, and 1 000 （P〈0.05）; the displacement of group C was significantly smaller than that of group D at every cycle （P〈0.05）. Additionally, the yield load of group C was significantly higher than that of group D （t=4.816, P=0.001）. Conclusion Pre-implantation of high-intensity suture into tendon grafts play an important role in the prevention of postoperative graft creep and relaxation in ACL reconstruction.

关 键 词：松弛 蠕变 前交叉韧带 肌腱移植 手术治疗 

分 类 号：R687.4[医药卫生—骨科学]