Purpose of the study was to assess the functional level of reconstructed anterior cruciate ligament clinically and radiological assessment of graft stretch by using stress radiography. To compare laxity values of operated and normal knee as measured using the stress radiography. To determine the effectiveness of ACL reconstruction surgery with respect to graft stretch. To assess the functional and radiological outcome of ACL reconstruction surgery. Patients who had undergone ACL reconstruction surgery within a minimum of 9 months duration post-surgery were clinically, then radiologically and functionally by Lysholm and Tegner questionnaire. The study period spanned from October 2017 to June 2019 with a sample size of 100 patients. Clinically about 22 patients had antero-postero translation 5-10mm and 30 patients had instability symptoms. All the patients with suspected graft stretch with stress x-ray having 5-10mm antero posterior translation had complaints of instability. Hence would like to conclude that graft stretch plays a vital role in the long term longevity of reconstruction.