Femoral nerve block as an alternative to parenteral narcotics for pain control after anterior cruciate ligament reconstruction.

Abstract

Anterior cruciate ligament (ACL) reconstruction is associated with significant postoperative pain, usually requiring parenteral narcotics. A prospective study of arthroscopically assisted autograft patellar tendon ACLR was initiated using Winnie's "three-in-one" femoral nerve block (FNB) as the primary means of postoperative pain control. Patient satisfaction and absence of parenteral narcotic use indicated clinical success. Of 24 patients studied, 92% had no parenteral narcotics administered following FNB. Ninety-five percent of patients believed FNB was beneficial and would request another. The average duration of pain control was 29 hours and the majority of patients (79%) believed discharge was possible within 23 hours. There were two patients who failed to respond to FNBs (8%) and no major complications. FNB is a safe, reliable, and effective form of analgesia following ACLR, eliminating the need for parenteral narcotics.