Effects of Adductor canal block combined with infiltration between the popliteal artery and capsule of the knee on pain management compared with epidural analgesia for patients undergoing total knee arthroplasty a randomised controlled trial

Total knee arthroplasty is regarded as one of the most painful orthopaedic operations. Adequate pain relief is essential in the immediate postoperative period to enable ambulation, initiation of physiotherapy, prevention of postoperative complications. A variety of procedures are currently being employed to achieve the same including neuraxial anaesthesia and regional anaesthesia including Adductor canal block. However, ACB does not relieve posterior knee pain and hence the addition of IPACK block ( infiltration between popliteal artery and capsule of the knee) has shown promising results in providing significant posterior knee analgesia without affecting motor nerves resulting in better range of motion and ambulation compared to adductor canal block alone