[Objective] To study the effect of arthroscopic reconstruction of anterior cruciate ligament using RIGIDfix and Intraflx system with quadruple-strand hamstring tendons.

Objective To explore surgical techniques and clinical effects of arthroscopic reconstruction of anterior cruciate ligament(ACL) with autogeneic hamstring tendons fixed by Rigidfix and Intrafix system.

Arthroscopic reconstruction of anterior cruciate ligament with four-stranded hamstring tendon autograft and absorbable interference screw fixation;

Arthroscopic reconstruction of anterior cruciate ligament with four stranded hamstring tendon autograft;

The study of arthroscopic reconstruction of anterior cruciate ligament with autogeneic hamstring tendons fixed by Rigidfix and Intrafix system;

Comparison between two different rehabilitation procedures following ACL autograft reconstruction with quadrupled hamstring tendons;

Objective To analysis the factors affecting the effects of arthroscopic ACL reconstruction using hamstring tendons.

Reconstruction of anterior cruciate ligament with quadruple hamstring tendons knot implant fixation and preservation of the remnants using special stair-like drill system

Part I(gross anatomy of cadaver dissection of the popliteus muscle complex,including the popliteus tendon,the femoral insertion and the musculotendinous junction)was carried out in 5 human adult cadaver knees.