aMedical University of South Carolina, Department of Orthopaedics and Physical Medicine

96 Jonathan Lucas St., CSB 708, Charleston, SC

bMedical University of South Carolina, Department of Radiology 96 Jonathan Lucas St., CSB 210, Charleston, SC

Financial Disclosure: The authors declare no conflicts of interest.

Correspondence to Kristoff Reid, MD, MUSC: Medical University of South Carolina, Charleston, SC Tel.: +8437921792; Fax: +8437923674; e-mail: [email protected].