Geoffrey S. Van Thiel, MD, MBA and Scott W. Trenhaile, MD are collaborating investigators at Rockford Orthopedics in Rockford, Illinois, Rush will subcontract with Rockford Orthopedics to enroll subjects, treat per study protocol and do follow-up visits. The bone marrow analysis of Rockford subjects will be done here at Rush. Rockford Orthopedics will use their local IRB for the study.