1. Department of Orthopaedics; Emory University; Decatur Georgia
2. Department of Orthopaedic Surgery; University of Pennsylvania; Philadelphia Pennsylvania
3. Atlanta Veteran's Affairs Medical Center; Decatur Georgia
4. Parker H. Petit Institute for Bioengineering and Bioscience; Georgia Institute of Technology; Atlanta Georgia
5. Wallace H. Coulter Department of Biomedical Engineering; Georgia Institute of Technology; Atlanta Georgia