 The primary aim is to compare the two operational techniques: single bundle hamstrings versus double bundle hamstrings ACL reconstruction, using the KOOS Knee Osteoarthritis Outcome Score Quality of LifeQoL subscore as the primary outcome and clinical examinations, functional tests and standing radiographs Kellgren Lawrence method as secondary outcome measurements. Those assesments will be measured after 1,2 and 5 years after the operation. 