Comparison of Ultrasound-Guided Adductor Canal Block and Surgeon-Performed Block for Pain Management after Total Knee Arthroplasty: A Prospective Randomized Controlled Study
Objective:
The study aimed to compare the effectiveness of adductor canal block (ACB) performed by surgeons and anesthesiologists using ultrasound guidance for postoperative pain management after total knee arthroplasty (TKA).
Methods:
A total of 240 participants were randomly assigned to three groups: surgeon-performed ACB, anesthesiologist-performed ACB with ultrasound guidance, and a control group without ACB. Pain levels were assessed using the Visual Analog Scale (VAS) and opioid analgesic consumption was monitored on the first, third, and tenth days, as well as the twelfth week after TKA.
Results:
The groups with ACB had significantly lower VAS scores at 3 and 12 hours after surgery compared to the control group, with the ultrasound-guided ACB group showing the lowest scores. However, there were no significant differences in VAS scores between the ultrasound-guided and surgeon-performed ACB groups at 1 day, 3 days, 10 days, and 12 weeks after surgery. The ultrasound-guided ACB group also had the lowest opioid consumption in the first three days after surgery.
Conclusion:
ACB is effective in reducing postoperative pain after total knee replacement. While ultrasound-guided ACB had a notable impact on VAS scores compared to surgeon-performed ACB, its effect on clinical outcomes was not demonstrated.
TRIAL REGISTRATIONS: This study was retrospectively registered with the Clinical Trials Registry Platform on July 31, 2024 (NCT06533085).
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