BACKGROUND AND OBJECTIVE: Incidence of ACL injuries are increasing due to motor sports and recreational activities involving high physical activity. Ligament injury accounts for nearly 40% of all knee injury problems and isolated anterior cruciate ligament injury constitutes nearly 50% of all knee ligament injuries. METHODS: 27 patients with ACL injuries were selected who were admitted in the S.V.R.R.G.G. Hospital, Tirupati between November 2013 and august 2015. Patients were treated with

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... scopic anterior cruciate ligament reconstruction using single bundle quadriple semitendinosus and gracilis tendon graft and followed up till functional recovery and assessed clinically. RESULTS: The study comprises of 25 male and 2 female patients aged from 15 to 50 years with mean age of 33 years. The follow up ranged from 6 to 14 months and results assessed using the Lysholm knee scoring system. INTERPRETATION AND CONCLUSION: arthroscopic anterior cruciate ligament reconstruction using single bundle quadriple semitendinosus and gracilis tendon graft has good results.