中国组织工程研究与临床康复2011，Vol.15Issue(37)：6887-6890,4.DOI:10.3969/j.issn.1673-8225.2011.37.012
膝关节后交叉韧带损伤对侧副韧带生物力学的影响
Biomechanical effect of posterior cruciate ligament rupture on the collateral ligaments
俞芳 1周益昭 1李康华 1李宇晟 1高曙光 1章灿1
作者信息
- 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
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摘要
Abstract
BACKGROUND: At present, most studies on posterior cruciate ligament (PCL) rupture focus on cartilage and posterolateralstructures as well as knee joint laxity.OBJECTIVE: To observe the biomechanical effects of posterior cruciate ligament (PCL) rupture on medial (MCL) and lateralcollateral ligament (LCL).METHODS: The strain in the MCL and LCL of 12 knees from young cadavers was measured at different angles (0°, 30°, 60°and90°) 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 theangle increased. Under 200 N loading after PCL rupture, at the angles of 0° and 30°, the strains of MCL midpoint were notsignificantly increased (P ＞ 0.05), while at the angles of 60° and 90° , the strains were significantly increased (P ＜ 0.05). At theangels 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 afterPCL rupture (P ＜ 0.05). These findings suggest that the complete rupture of PCL does not produce effects on knee jointmovement at the angle of 30°, but the effects on MCL and LCL were increased with increased angles.关键词
后交叉韧带/内侧副韧带/外侧副韧带/膝关节/生物力学分类
基础医学引用本文复制引用
俞芳,周益昭,李康华,李宇晟,高曙光,章灿..膝关节后交叉韧带损伤对侧副韧带生物力学的影响[J].中国组织工程研究与临床康复,2011,15(37):6887-6890,4.
