Eligibility criteria {10}
ACL injury, rupture, re-rupture
INFLAMMATORY ARTHRITIS, PATHOLOGY
All inclusion criteria will be assessed by the treating surgeon and associate investigators.Participants can be included if they are:Waitlisted for ACLR with either of the associated investigators (S.T or L.B). Waitlisting is based on evidence of complete ACL rupture, based on clinical assessment and MRI imaging. Patients waitlisted will also have the appropriate lifestyle indications to warrant surgical reconstruction of the ligament.Able to give informed consent and to participate fully in the interventions and follow-up procedures.Aged 18 and over.Concomitant meniscal and/or osteochondral pathology can be included.Planned for surgery using an ipsilateral hamstring tendon autograftPatients will be excluded if they:Have had a previous ACL reconstruction on the ipsilateral knee.Have had a previous ACL injury to the non-operative knee.Are of a developmental age where the presence of open physes would otherwise alter the surgical technique utilised.Have grade 2 or 3 medial collateral ligament (MCL)/lateral collateral ligament (LCL) injury, associated posterior cruciate ligament (PCL)/ posterolateral corner (PLC) injury that requires surgical intervention.Have inflammatory arthritis.Are pregnant.Have an articular cartilage defect requiring treatment that would alter the post-operative rehabilitation protocol and timelines.Have a meniscal injury requiring treatment that would alter the post-operative rehabilitation protocol and timelines (i.e. meniscal root or bucket handle tear repair).Have an ACL re-rupture risk significant enough to warrant the addition of an osteotomy or deformity corrective procedure or lateral extraarticular tenodesis.