From the *Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN; †Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA; ‡Spinecare, San Francisco Spine Institute, San Francisco, CA; §Department of Orthopaedic Surgery, The Rothman Institute, Thomas Jefferson University Hospital, Philadelphia, PA; ¶Department of Orthopaedic Surgery, University of Massachusetts, Worcester, MA; and ∥Department of Orthopaedic Surgery, University of North Carolina, Chapel Hill, NC.
Acknowledgment date: June 18, 2008. Revision date: August 24, 2008. Acceptance dates: August 27, 2008.
The device(s)/drug(s) is/are FDA-approved or approved by corresponding national agency for this indication.
No funds were received in support of this work. No benefits in any form have been or will be received from a commercial party related directly or indirectly to the subject of this manuscript.
Address correspondence and reprint requests to Ahmad Nassr, MD, Department of Orthopedic Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905; E-mail: [email protected]
