Additionally, MVIC will be measured by a handheld dynamometer (Lafayette Instrument Company, Lafayette Indiana) to determine muscle strength at baseline and after the adductor block. The patient will be in a seated position with the thigh parallel to the floor and the knee at a 90-degree angle with the feet off the floor. The dynamometer is applied to the leg 5 cm above the transmalleolar axis and perpendicular to the tibial crest. The patient is instructed to extend the leg at the knee with sustained maximal force for 5 seconds. This will be repeated 3 times with 30 seconds rest between each movement, and the force will be recorded (Newtons).