Result: physical examination: Knee swollen: 38 patients, Knee pain: 42 patients, Effusion of knee joint: 32 patients. A positive Lachman test:38 patients positive ADT: 12 in 19 patients.

• 结果:查体膝肿胀38例,疼痛42例,关节积液32例,Lachman试验阳性38例,19例行前抽屉试验检查,阳性12例,MRI显示ACL信号异常,其中ACL,连续性中断9例,弥漫性改变19例,信号扭曲、波形变14例。