The MOPS was developed to preserve the cartilage tissue better than the currently standard preservation system is able to. Patients that are enrolled into this study will receive cartilage tissue that has been stored in the MOPS instead of the currently standard preservation system. Their surgical procedure will not change and be performed as per usual. The patient will then be followed for a period of two years in which their progress will be assessed using surveys and the healing and integration of the transplanted tissue will be assessed using diagnostic imaging and blood and urine samples.