ACL rupture is a common injury. The National Ligament Registry (NLR) report (2016) details that 2585 patients with this injury were added to the Registry between 31/01/15 and 31/01/16. Of these, 1851 (71.6%) underwent reconstruction surgery and 734 patients (28.4%) were treated non-operatively. There is no clear consensus as to the best surgical technique for this procedure. However, one of the commonest techniques used is that involving the use of hamstring autograft- 95% of ACL reconstructions in Sweden in 2012 were performed using this method and 88% in the UK in 2015. A tunnel is drilled through the distal femur and proximal tibia, and the ACL graft passed through the tunnel. With this hamstring autograft method, various methods exist for fixing the graft on the femoral side- interference screws, transfemoral suspensory devices and femoral suspensory devices. There is no consensus as to which is best.