Adductor Canal Block for Post-Operative Pain Relief in Knee Surgeries: A Review Article

The adductor canal block (ACB) is newer compartment block of the saphenous nerve, which is a branch of femoral nerve, performed at the level of lower third of the thigh so that much of the motor innervation of the quadriceps group is spared, thus preserving much of the quadriceps strength making early ambulation and rehabilitation safer. The most significant advantage of the ACB over femoral nerve block and other techniques is that it is predominantly a sensory block and reduces the incidence of fall after knee surgeries.