• Abdulrahim Dündar, Deniz İpek, Mehmet Yalvaç, and Şehmuz Kaya.
• From the Department of Orthopaedics and Traumatology (Dündar, İpek) and from the Department of department of Anesthesiology (Yalvaç), Hitit University Erol Olçok Training and Research Hospital, Çorum; and from the Department of Orthopedics' and Traumatology (Kaya), Van Yüzüncüyıl University, Van Turkey.
• Saudi Med J. 2024 Mar 1; 45 (3): 279287279-287.

ObjectivesTo compare the efficacy of genicular block and interspace between the popliteal artery and the posterior capsule (IPACK) block in the reduction of postoperative pain, the need for rescue analgesics, and the effects on a range of motion (ROM) in patients with TKA.MethodsThis prospective randomized controlled study was carried out between February and May 2023. Based on the block method, 60 participants were divided into three equal groups. These groups included the IPACK block group (n=20), the genicular block group (n=20), and control group (n=20). Western Ontario and McMaster Universities Arthritis Index (WOMAC), Knee Society score (KSS) and Oxford Knee score (OKS) were used for clinical evaluation in the postoperative period.ResultsThe KSS and OKS scores of the IPACK and GNB were significantly lower than the control group (p<0.001, p<0.001). The timed up and go (TUG) values of the IPACK and GNB groups at 12th and 24th hour were significantly lower than the control group (p<0.001, p<0.001). The Tramadol rescue values of the IPACK block and control groups were significantly higher than the GNB group (p=0.028, p=0.001, respectively). The ROM values of the IPACK and GNB groups were significantly higher than the control group (p<0.001, p<0.001).ConclusionBoth GNB and IPACK blocks had a significant positive impact on postoperative pain scores within the initial 24 hours following total knee arthroplasty (TKA). In comparison with IPACK, GNB had lower opioid consumption in the early postoperative period while also promoting better mobilization.Copyright: © Saudi Medical Journal.

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