Femoral Triangle and Adductor Canal Blocks Versus Femoral Nerve Block for Total Knee Arthroplasty

This prospective, double-blinded, randomized controlled study evaluates effects of femoral triangle and adductor canal blocks in comparison with femoral nerve block for primary total knee arthroplasty. Patients undergoing primary total knee arthroplasty will be randomly assigned to receive either femoral triangle and adductor canal blocks or femoral nerve block. Comparison of these two groups of patients will be based on the effects on postoperative pain control, extent of motor blockade, ability of early ambulation, patients satisfaction rates over the time of clinical recovery and the length of hospitalization. To the investigator's knowledge, no comparison has been made between femoral triangle and adductor canal blocks and femoral nerve block or any other block. Consequently, we hypothesized that femoral triangle and adductor canal blocks and femoral nerve block provide similar effects on postoperative pain control, but femoral triangle and adductor canal blocks are superior to femoral nerve block in terms of early postoperative mobilization.