前交叉韧带损伤膝关节侧副韧带长度的变化(英文)  

Length changes of knee lateral collateral ligaments following anterior cruciate ligament injury

作　　者：李凭跃[1] 尹庆水[1] 黄华扬[1] 李鉴轶[2] 沈洪园[1] 王泽锦[1] 王庆[1] 

机构地区：[1]解放军广州军区广州总医院全军创伤骨科中心,广东省广东市 510010 [2]南方医科大学广东省重点生物力学实验室,广东省广东市 510515

出　　处：《中国组织工程研究与临床康复》2010年第50期9480-9484,共5页Journal of Clinical Rehabilitative Tissue Engineering Research

基　　金：the National Natural Science Foundation of China,No.30600302~~

摘　　要：背景:侧副韧带对膝关节的稳定性起着重要的作用,通过2D/3D图像配准技术可以实现膝关节的运动还原并获得前交叉韧带损伤后生理屈曲过程中内侧副韧带和外侧副韧带长度变化规律。目的:对前交叉韧带损伤膝关节侧副韧带长度变化进行运动还原体内稳定性研究。方法:选择单侧膝关节前交叉韧带断裂而对侧正常的8例患者,在生理负重屈曲采集0°,15°,30°,60°和90°时的相互垂直的2D图像,与CT(3D)图像在虚拟X射线投射系统进行2D/3D图像配准,还原膝关节不同角度时的股骨和胫骨相对3D位置关系,并通过韧带止点还原的方法对内侧副韧带、外侧副韧带进行韧带长度分析,并对比两侧。结果与结论:内侧副韧带损伤后在0°,15°和30°患膝内侧副韧带长度较健膝增加;内侧副韧带损伤后在0°、15°和30°患膝外侧副韧带长度较健膝减少,差异均有显著性意义(P<0.05)。结果提示,在0°、15°和30°,前交叉韧带损伤后患膝内侧副韧带长度较健膝增加,而外侧副韧带长度较健膝缩短。BACKGROUND：Lateral collateral ligaments play an important role in maintaining knee stability.Motion reduction of knee joint can be realized and the changes laws of medial and lateral collateral ligaments＇ length after anterior cruciate ligament（ACL） injury during weight-bearing flexion can be obtained via 2D/3D image registration technique.OBJECTIVE：To study in vivo stability of length changes of the medial and lateral collateral ligaments of ACL injury knee during weight-bearing flexion.METHODS：Eight volunteers with unilateral ACL rupture and contralateral normal knees,was captured CT images and 2 orthogonal images of the knee at 0°,15°,30°,60°,and 90° of weight-bearing flexion.These orthogonal images were used to recreate the in vivo knee positions at each of the targeted flexion angles by the method of 2D/3D image registration.Through the bone insertion of medial and lateral collateral ligaments,the elongation changes of medial and lateral collateral ligaments were obtained.RESULTS AND CONCLUSION：At 0°,15° and 30°,the length of medial collateral ligament of ACL injury knees was longer than normal knees,but the lateral collateral ligaments length of ACL injury knee was shorter than that of normal knees.All the differences have statistical significances（P 0.05）.The findings demonstrated that,at 0°,15° and 30°,the medial collateral ligament length of ACL injury knees was longer than normal knees,but lateral collateral ligaments length of ACL injury knees was shorter than normal knees.

关 键 词：前交叉韧带 稳定性测试 膝关节 内侧副韧带 外侧副韧带 

分 类 号：R318[医药卫生—生物医学工程]