中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (37): 6887-6890.doi: 10.3969/j.issn.1673-8225.2011.37.012

• 组织构建与生物力学 tissue construction and biomechanics • 上一篇    下一篇

膝关节后交叉韧带损伤对侧副韧带生物力学的影响

俞  芳，周益昭，李康华，李宇晟，高曙光，章  灿   

  1. 中南大学湘雅医院骨科研究所，中南大学湘雅医院骨科，湖南省长沙市  410008
  • 收稿日期:2011-03-29 修回日期:2011-06-20 出版日期:2011-09-10 发布日期:2011-09-10
  • 通讯作者: 李康华，教授，中南大学湘雅医院骨科研究所，中南大学湘雅医院骨科，湖南省长沙市 410008 Lkh8738@gmail.com
  • 作者简介:俞芳☆，女，1983年生，浙江省永康市人，汉族，2011年中南大学湘雅医学院毕业，博士，主要从事骨与关节损伤的研究。 yukang7171930@yahoo.com.cn

Biomechanical effect of posterior cruciate ligament rupture on the collateral ligaments

Yu Fang, Zhou Yi-zhao, Li Kang-hua, Li Yu-sheng, Gao Shu-guang, Zhang Can   

  1. Institute of Orthopedics, Xiangya Hospital of Central South University, Department of Orthopedics, Xiangya Hospital of Central South University, Changsha   410008, Hunan Province, China
  • Received:2011-03-29 Revised:2011-06-20 Online:2011-09-10 Published:2011-09-10
  • Contact: Li Kang-hua, Professor, Institute of Orthopedics, Xiangya Hospital of Central South University, Department of Orthopedics, Xiangya Hospital of Central South University, Changsha 410008, Hunan Province, China Lkh8738@gmail.com
  • About author:Yu Fang☆, Doctor, Institute of Orthopedics, Xiangya Hospital of Central South University, Department of Orthopedics, Xiangya Hospital of Central South University, Changsha 410008, Hunan Province, China yukang7171930@ yahoo.com.cn

PDF

264

被引次数

9

摘要：

背景：目前对膝关节后交叉韧带损伤后的研究多集中于软骨、后外侧结构及关节的松弛度等方面。
目的：观察后交叉韧带断裂对膝关节内、外侧副韧带生物力学的影响。
方法：取12具正常成人新鲜尸体膝关节标本，在200 N载荷下，测试膝关节屈曲0°，30°，60°，90°位时，内、外侧副韧带中点的应变，后将12具标本的后交叉韧带全部切断再进行相同的测试。
结果与结论：膝屈曲0°和30°位时，后交叉韧带断裂前后内、外侧副韧带中点的应变均为压应变，且差异无显著性意义 (P > 0.05)；膝屈曲30°~90°位时，内侧副韧带中点的应变随着角度增加而逐渐增大；膝屈曲60°和90°位时，后交叉韧带断裂后拉应变较断裂前明显增大(P < 0.05)，其中内侧副韧带中点的应变均为拉应变，而外侧副韧带中点的应变在后交叉韧带完整情况下膝屈曲60°时为压应变。说明后交叉韧带完全断裂对30°内的膝关节运动无明显影响，但是随着屈曲角度的增加，内、外侧副韧带受到的影响逐渐增大。

关键词: 后交叉韧带, 内侧副韧带, 外侧副韧带, 膝关节, 生物力学

Abstract:

BACKGROUND: At present, most studies on posterior cruciate ligament (PCL) rupture focus on cartilage and posterolateral structures as well as knee joint laxity.
OBJECTIVE: To observe the biomechanical effects of posterior cruciate ligament (PCL) rupture on medial (MCL) and lateral collateral ligament (LCL).
METHODS: The strain in the MCL and LCL of 12 knees from young cadavers was measured at different angles (0°, 30°, 60°and 90°) under 200 N loading. The PCL of all knees was resected for the same measurements.
RESULTS AND CONCLUSION: At the angles of 30°-90°, the strains of PCL intact group and PCL injury group increased as the angle increased. Under 200 N loading after PCL rupture, at the angles of 0° and 30°, the strains of MCL midpoint were not significantly increased (P  > 0.05), while at the angles of 60° and 90° , the strains were significantly increased (P < 0.05). At the angels of 0° and 30°, the strains of LCL midpoint of PCL rupture knee were still compressive and not significantly increased (P > 0.05) compared with the normal knee. However, at the angels of 60° and 90°, the strains were significantly increased after PCL rupture (P < 0.05). These findings suggest that the complete rupture of PCL does not produce effects on knee joint movement at the angle of 30°, but the effects on MCL and LCL were increased with increased angles.

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