Total Knee Replacement TIVA With Robotic Arm Assisted

Total knee replacement (TKR) is a commonly performed surgical procedure, and is associated with moderate to severe acute postoperative pain. Poor acute postoperative pain control has been associated with increased morbidity, prolonged recovery, reduced patient satisfaction and chronic post-surgical pain. Multimodal analgesia in the context of enhanced recovery after surgery programs is advocated for conventional total knee replacement. More recently, robotic arm assisted total knee replacement has been introduced. TKR is most commonly performed under spinal anaesthesia or general anaesthesia using inhalational agents or propofol total intravenous anaesthesia (TIVA). It is unclear which is the best anaesthetic technique for postoperative analgesia. There has been no head to head trial comparing these 3 anaesthetic techniques in the context of modern multimodal and enhanced recovery after surgery (ERAS) protocols for conventional and robotic arm assisted TKR. Propofol TIVA may reduce postoperative pain and opioid consumption after surgery, but the overall evidence is still controversial. Whether propofol TIVA provides better analgesia compared to inhalational anaesthesia for TKR is not known. A prospective, randomized controlled trial providing head to head comparisons between general anaesthesia with propofol TIVA, inhalational anaesthesia, and spinal anaesthesia under is indicated. In this study, we plan to perform a randomized controlled trial to compare postoperative analgesia after robotic arm assisted TKR in three commonly used anaesthetic techniques: 1) spinal anaesthesia (SA), 2) general anaesthesia with inhalational anaesthesia (GAS), 3) general anaesthesia with propofol TIVA (TIVA). This clinical trial will be conducted within the framework of modern multimodal analgesic and enhanced recovery after surgery pathways. In this study, we plan to perform a randomized controlled trial to compare postoperative analgesia after TKR in three commonly used anaestheti