What we are studying
The purpose of this research study is to compare the effects of two different nerve blocks to see if one is better than the other. A nerve block is a procedure in which local anesthetic, also known as numbing medication, is injected around a nerve in order to decrease pain and discomfort. Nerve blocks are typically performed before surgery. This study will compare two different nerve blocks to see if either one is better at decreasing pain or decreasing the amounts of pain medication needed after partial knee replacement surgery.