Relieving Pain After Arthroscopic Knee Surgery: Ultrasound-Guided Femoral Nerve Block or Adductor Canal Block?

Objective: To compare the analgesic effects of femoral nerve block (FNB) and adductor canal block (ACB) after arthroscopic knee surgery.

Methods: This was a prospective randomised clinical trial that enrolled 92 patients undergoing arthroscopic knee surgery. Ultrasound-guided FNB or ACB was performed immediately after surgery for pain relief.