1. Orthopaedic and Arthritis Center for Outcomes Research and Department of Orthopedic Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
2. Orthopaedic and Arthritis Center for Outcomes Research, Brigham and Women’s Hospital, Boston, Massachusetts
3. Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio
4. Department of Orthopaedic Surgery, Sports Medicine, Cleveland Clinic, Florida, Weston, Florida
5. Department of Orthopaedic Surgery, Sports Medicine, Cleveland Clinic, Cleveland, Ohio
6. Investigation Performed at the Cleveland Clinic, Cleveland, Ohio, USA