中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (47): 7676-7680.doi: 10.3969/j.issn.2095-4344.2015.47.024

• 材料力学及表面改性 material mechanics and surface modification • 上一篇    下一篇

带血管蒂髌腱移植物的力学性能

徐 昌,马 强,艾尔西丁,王晓挺,沈志敏   

  1. 新疆医科大学第六附属医院,新疆维吾尔自治区乌鲁木齐市 830000
  • 收稿日期:2015-08-22 出版日期:2015-11-19 发布日期:2015-11-19
  • 通讯作者: 沈志敏,关节外科主任,硕士生导师,主任医师,新疆医科大学第六附属医院,新疆维吾尔自治区乌鲁木齐市830000
  • 作者简介:徐昌,男,1968年生,汉族,主治医师,主要从事关节外科各类关节置换及翻修术、关节周围疾病骨折疼痛、关节镜运动损伤研究。

Mechanical properties of vascularized patellar tendon graft

Xu Chang, Ma Qiang, Aierxiding, Wang Xiao-ting, Shen Zhi-min   

  1. the Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
  • Received:2015-08-22 Online:2015-11-19 Published:2015-11-19
  • Contact: Shen Zhi-min, Master’s supervisor, Chief physician, the Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
  • About author:Xu Chang, Attending physician, the Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China

摘要:

背景:临床上研究膝关节交叉韧带生物材料的力学性能具有重要意义,可为临床研制组织结构、生物力学及相容性好的材料提供理论依据。

目的:分析带血管蒂髌腱移植物的力学性能。
方法:切断42只新西兰大白兔左前腿前交叉韧带,随机分为2组,实验组植入自体带血管蒂髌腱移植物进行前交叉韧带修复,对照组植入自体不带血管蒂髌腱移植物进行前交叉韧带修复。移植后8,12,16周,检测两组移植标本的生物力学性能。
结果与结论:两组不同时间点的断裂位置比较差异无显著性意义;实验组移植后12,16周的膝关节前后松弛度高于对照组(P < 0.05),两组移植后8周的膝关节前后松弛度比较差异无显著性意义;实验组移植后8,12,16周的最大载荷均高于对照组(P < 0.05),移植后8,12,16周的刚度均高于对照组(P < 0.05);两组移植后不同时间点的最大拉伸长度比较差异无显著性意义。表明带血管蒂髌腱移植物具有良好的力学性能。
中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

关键词: 生物材料, 材料相容性, 带血管蒂髌腱移植物, 膝关节交叉韧带, 力学性能, 人工材料置换

Abstract:

BACKGROUND: The clinical study on the mechanical properties of biomaterials for cruciate ligament reconstruction is of great importance, which can provide a theoretical basis for the clinical development of materials with good structure, biomechanics and compatibility.
OBJECTIVE: To analyze the mechanical properties of vascularized patellar tendon graft.
METHODS: The anterior cruciate ligaments of the left foreleg from 42 New Zealand white rabbits were cut off. Then, these rabbits were randomly and evenly divided into two groups: experimental group and control group. Rabbits in the experimental group were implanted vascularized patellar tendon graft for anterior cruciate ligament repair. Rabbits in the control group were implanted with autologous non-vascularized patellar tendon graft for anterior cruciate ligament repair. At the 8th, 12th and 16th weeks after implantation, biomechanical properties of specimens from these two groups were detected.
RESULTS AND CONCLUSION: There was no significant difference on the fracture location at different time points between these two groups; at the 12th and 16th weeks after transplantation, the knee laxity in the experimental group was higher than that in the control group (P < 0.05). At the 8th week after transplantation, there was no significant difference in the knee laxity between these two groups. At the 8th, 12th and 16th weeks after transplantation, the maximum load in the experimental group was higher than that in the control group (P < 0.05). At the 8th, 12th and 16th weeks after transplantation, the stiffness in the experimental group was higher than that in the control group (P < 0.05). There was no significant difference in the maximum tensile elongation between these two groups at different time points after transplantation. These results demonstrate that vascularized patellar tendon graft has good mechanical properties. 
中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

Key words: Transplants, Anterior Cruciate Ligament, Biomechanics, Tissue Engineering