A prospective randomized open-label study of single injection versus continuous adductor canal block for postoperative analgesia after total knee arthroplasty

The Bone & Joint Journal
Nabil M ElkassabanyCharles Nelson

Abstract

Adductor canal block (ACB) has emerged as an alternative to femoral nerve block (FNB) for analgesia after total knee arthroplasty (TKA). The optimal duration of maintenance of the ACB is still questionable. The purpose of this study was to compare the analgesic benefits and physiotherapy (PT) outcomes of single-shot ACB to two different regimens of infusion of the continuous ACB, 24-hour and 48-hour infusion. This was a prospective, randomized, unblinded study. A total of 159 American Society of Anesthesiologists (ASA) physical status I to III patients scheduled for primary TKA were randomized to one of three study groups. Three patients did not complete the study, leaving 156 patients for final analysis. Group A (n = 53) was the single-shot group (16 female patients and 37 male patients with a mean age of 63.9 years (sd 9.6)), group B (n = 51) was the 24-hour infusion group (22 female patients and 29 male patients with a mean age of 66.5 years (sd 8.5)), and group C (n = 52) was the 48-hour infusion group (18 female patients and 34 male patients with a mean age of 62.2 years (sd 8.7)). Pain scores, opioid requirements, PT test results, and patient-reported outcome instruments were compared between the three groups. The proport...Continue Reading

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Citations

Nov 27, 2019·The Journal of Bone and Joint Surgery. American Volume·Michael J Taunton
Aug 31, 2020·The Bone & Joint Journal·Fares S Haddad
Jul 8, 2021·The Journal of Bone and Joint Surgery. American Volume·Joseph A KaramJavad Parvizi
Sep 27, 2021·Archives of Orthopaedic and Trauma Surgery·A MaganF S Haddad

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