Background: The knee joint is the most commonly injured of all joints due to modern high speed vehicular trauma and sporting life style. The Anterior cruciate ligament (ACL) is the most commonly injured ligament. Anterior cruciate ligament reconstruction is one of the common procedures in knee surgery. Arthroscopic ACL reconstruction using adjustable loop device and fixed loop devices, both are being practiced nowadays with successful functional outcome. However limited evidence is available to support which amongst the two is better.The present study is therefore conducted to compare the functional outcomes post ACL reconstruction using Fixed Vs Adjustable loop device for femoral fixation of graft. Objectives:-1.TO assess the functional outcome in FIXED LOOP ENDOBUTTON in Arthroscopic ACL reconstruction cases. 2.TO assess functional outcome in ADJUSTABLE LOOP-LENGTH devices in Arthroscopic ACL reconstruction cases. 3.TO compare both these outcomes. Material and Methods:-An observational prospective study was conducted among 60 patients who underwent ACL reconstruction (by using fixed loop device in 30 patients and adjustable loop device in 30 patients.), in the department of Orthopaedics, Adesh Institute of Medical Sciences and Research, Bathinda.Results:-Majority of the patients were males between 21-30 years of age with right knee injury in both the groups. Most common mode was Sports injury and most common associated injury was medial meniscal tear in both the groups. There were significant improvement in functional outcomes in terms of Lachman test, anterior drawer test, Single leg hop test and Tegnerlysholm scores, post 6 and 9 months of ACL reconstruction in both the groups separately. But the difference in functional outcome between groups in terms lysholm score were not statistically significant. Conclusion:- The present study concluded that there is no significant difference in functional outcomes between ACL reconstruction using fixed loop device and adjustable loop device. In Anterior Cruciate Ligament Reconstruction using adjustable loop device.