Background:To compare the gait patterns between posterior cruciate retention (CR) and posterior cruciate substitution (PS) in total knee arthroplasty (TKA). Materials and Methods: This is a prospective, randomized study of 35 patients to compare the functional outcomes of a posterior-cruciate-ligament-retaining and posterior- cruciate-ligament substituting total knee arthroplasty. The results of the WOMAC 35 score which were subdivided into pain, stiffness and function showed high scores for cruciate substituting groups for pain as compared to the cruciate retaining groups whereas, other parameters were same in both the groups. Results: The comparison in the two designs of the CL retaining and CL substituting for TKR was made right from the pre-operative deformity and comparison outcomes of the two procedures by health surveys, WOMAC surveys, knee society score. Conclusion: The present study found almost similar results for Cruciate ligament retaining and substituting procedures in long term follow up at 3 months, with slightly better outcomes for Cruciate ligament retaining groups at the earliest phases preoperatively and post operatively.