Anterior cruciate ligament reconstruction (ACLR) is one of the most common procedure all around the world, however optimal graft source for ACLR still remains controversial. Although Quadriceps tendon (QT) is the least used and least studied autograft, it could be an appropriate and good alternative for ACLR. If investigaters use the same surgical technique, and exert the same rehabilitation methods they may have better results than hamstring tendon (HT) autografts.

Investigators enrolled 36 patient and randomized them to different group (HT, QT). at the first evaluation examination findings noted, PROMs (patient reported outcome measurements) questioned, thigh circumference measured, flexor and extensor thigh muscle strength recorded with help of Humac CYBEX Norm (CSMI, 2004) device. After these examinations and preparations all patients operated by the same surgeon who is familiar with both technique. The same surgical technique and fixation method used for both groups. At 1st year follow-up all evaluations PROMs (İKDC,lysholm,VAS) and measurements repeated. Back to the sports rates and postoperative complications compared between HT-QT.

Inclusion Criteria:

diagnosed primary ACL rupture willing to involve study

• lesser than Outerbridge 2 cartilage lesions, non-buckethandle meniscus injuries

Exclusion Criteria:

more than one ligament injury greater than outerbridge 3 cartilage injury buckethandle meniscus injuries re-ruptures bilateral injuries previous knee surgery any disease affecting muscle strength

-