The purpose of this study is to review clinical outcomes following hand ligament reconstruction surgery using allograft (cadaveric) knee collateral ligaments. Researchers believe that the use of allograft ligaments may eliminate the pain associated with procuring patients’ own tissue for the procedure. Allograft ligaments replace like with like; collateral ligaments are not expendable, and tendons or foreign substances are usually utilized. To evaluate the effectiveness of ligament reconstruction surgery when using allograft ligaments, the study will review medical records of patients before and after surgery. Functional outcome, pain score, grip strength, pinch strength, range of motion, and radiographs (x-rays) will be examined. Study procedures also include measurements and questionnaires to evaluate hand function after surgery.