A Comparison of Anaesthetic Methods for Total Knee Replacement Surgery

Open-labelled, randomised controlled trial. Patients will be assessed pre-operatively, at 24 and 48 hours for the primary outcome and secondary outcomes (except for Oxford Knee Score which will be assessed pre-operatively and at 6 months post-operatively by the ortho-paedic team). Primary Objective: To demonstrate whether adductor canal nerve infusions result in superior patient mobilisation within the first 48 hours following total knee replacement compared to femoral nerve catheter infusions. Secondary Objective: To identify whether adductor canal nerve infusions result in superior analgesia within the first 48 hours following total knee replacement compared to femoral nerve catheter infusions.