| 挤压螺钉固定自体髌韧带移植重建后交叉韧带的生物力学研究 |
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| 引用本文： | 曹正霖,黄华扬,赵卫东.挤压螺钉固定自体髌韧带移植重建后交叉韧带的生物力学研究[J].中国矫形外科杂志,2003(Z2). |
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| 作者姓名： | 曹正霖 黄华扬 赵卫东 |
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| 作者单位： | 广州军区广州总医院骨科 510010
(曹正霖，黄华扬)，第一军医大学全军医学生物力学重点实验室 广州(赵卫东) |
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| 摘 要： | 目的:评价挤压螺钉固定自体骨-髌韧带-骨(bone-patellar-bone,B-PT-B)移植重建后交叉韧带(posterior cruciate ligament,PCL)术提供的膝关节胫骨后移刚度和强度,为手术后康复计划的制定提供依据。方法:对正常和挤压螺钉固定自体B-PT-B移植重建PCL术后等状态的新鲜尸体标本,进行膝关节屈曲15°。30°、90°位胫骨后移刚度和屈膝90°位胫骨后移强度测试。结果:挤压螺钉固定自体B-PT-B移植重建PCL术后,各膝关节屈曲角度时胫骨后移刚度明显大于正常状态,以90°时最为明显;胫骨后移强度则明显小于正常状态,约为其25％。结论:挤压螺钉固定自体B-PT-B移植重建PCL术后早期不宜负重,功能锻炼膝关节屈曲不超过90°。
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| 关 键 词： | 后交叉韧带 移植 自体 生物力学 |
Biomechanical Study of Posterior Cruciate Ligament Reconstruction using Patellar Tendon Autograft Fixed with Interference Screw |
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| CAO Zheng-Lin,HUANG Hua-yang,ZHAO Wei-dang.Biomechanical Study of Posterior Cruciate Ligament Reconstruction using Patellar Tendon Autograft Fixed with Interference Screw[J].The Orthopedic Journal of China,2003(Z2). |
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| Authors: | CAO Zheng-Lin HUANG Hua-yang ZHAO Wei-dang |
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| Institution: | CAO Zheng-Lin,HUANG Hua-yang,ZHAO Wei-dang. Department of Orthopaedics,General Hospital of Guangzhou Military Command,Guangzhou,510010 |
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| Abstract: | Objective: To study tibia retrocession stiffness and strength of posterior cruciate ligament reconstruction using patellar tendon autograft fixed with interference screw. Methods: Tibia retrocession stiffness and strength of 6 fresh normal and subsequently reconstructive knee specimens were measured on the MTS system. Results: Compared with normal specimens, the tibia retrocession stiffness increased after poserior cruciate ligament reconstruction using patellar tendon autograft fixed with interference screw,but the tibia retrocession strength decreased. Conclusion: Weight-bearing can't be permitted immediately after the surgery. The range of motion should be less than 90?flexion in early rehabilitation. |
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| Keywords: | Posterior cruciate ligament Transplantation Autologous Biomechanics |
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