Single-injection femoral nerve block. Effects on the independence level in functional activities in the early postoperative period in patients with total knee arthroplasty.

Objective: To investigate the efficacy of single injection femoral nerve block (FNB) on the independence level in functional activities in the early postoperative period in patients with total knee arthroplasty (TKA).

Methods: We conducted this prospective, randomized, blinded trial in the Department of Orthopedics and Traumatology, Hacettepe University Hospital Ankara, Turkey, between June 2003 and April 2004. Twenty-three patients scheduled for elective TKA were randomly divided into 3 groups.