Autograft type affects muscle strength and hop performance after ACL reconstruction. A randomised controlled trial comparing patellar tendon and hamstring tendon autografts with standard or accelerated rehabilitation

• DOI: 10.1007/s00167-020-06334-5
• Publication Date: 2020-10-31T10:02:53Z
• Authors: Riccardo Cristiani; Christina Mikkelsen; Peter Wange; Daniel Olsson; Anders Stålman; Björn Engström
• Keywords: 03 medical and health sciences; 0302 clinical medicine; Patellar Ligament; Anterior Cruciate Ligament Injuries; Hamstring Tendons; Humans; Knee; Muscle Strength; Autografts; Bone-Patellar Tendon-Bone Grafting

Abstract Purpose To evaluate and compare changes in quadriceps hamstring strength single-leg-hop (SLH) test performance over the first 24 postoperative months patients who underwent anterior cruciate ligament reconstruction (ACLR) with bone-patellar tendon-bone (BPTB) or tendon (HT) autografts followed either a standard an accelerated rehabilitation protocol. Methods A total of 160 undergoing ACLR were randomised four groups depending on graft that was used protocol (40 BPTB/standard rehab, 40 BPTB/accelerated HT/standard HT/accelerated rehab). Isokinetic concentric at 90°/s SLH assessed preoperatively 4,6,8,12 postoperatively. The results reported as limb symmetry index (LSI) same time point. Linear mixed models to different points. Results An average LSI 78.4% found preoperatively. After ACLR, decreased 4 then increased from 6 months, reaching overall value 92.7% latest follow-up. BPTB group showed significantly 4, 6, 8 12 compared HT group. No significant differences between months. 84.6% BTPB In group, 97.1% 89.1% follow-up for respectively. all follow-ups 81% 97.6% only postoperatively any three tests Conclusion Muscle recovered progressively after overall, but they did not fully recover, injured leg performed less than 100% uninjured even inferior poorer respectively, Persistent, Rehabilitation, accelerated, had no impact recovery muscle groups. Level Evidence I.