摘要
随访１５０例股四头肌重建术，其中绳肌替代股四头肌术１１２例，腹外斜肌加腹直肌替代股四头肌术３８例。分析、比较二种术式的疗效和着力情况，提出了股四头肌重建术应当注意的几个问题。证明：在力臂、肌截面积不变的情况下，作用力的大小取决于作用力线与关节轴线的夹角。角度越大，动力臂越长，越省力；当作用力线与关节轴线呈负角或有膝屈曲畸形时，负角越小、关节分力越小而伸膝分力越大。
ne hundred and fifty cases were followed up after
quadricepsplasty. Hamstring M,wereused in 112 cases.M. rectus femoris or obliquis
abdominis was used in 38 cases.The valldity andforce analysis of such two kinds of operation
were analyzed and compared.It was confirmed thatthe power of the transferred muscle
depended on the angle between the force line and the neutralaxis of the joint,provided the arm
of the force and the area of transection of the muscle wereconstant.The bigger the angle
was,the longer the arm of the force was,and the smatler wasthe labour.If this angle was
negative or the knee joint was in a position of flexion deformity,thesmat1er the negative angle
was,the smaller the componend force of the joint was,and the largerwas the component force of
extension.
出处
《中国修复重建外科杂志》
CAS
CSCD
1995年第4期193-195,共3页
Chinese Journal of Reparative and Reconstructive Surgery
关键词
股四头肌
重建
生物力学
Biomechanics
Quadricepsplasty
Reconstruction.
