[1] Harvard Univ, Sch Med, Massachusetts Gen Hosp, Dept Orthopaed Surg, Boston, MA 02114 USA
[2] Charite, Dept Orthopaed Surg, D-13353 Berlin, Germany
[3] Carolinas Med Ctr, Dept Orthopaed Surg, Charlotte, NC 28204 USA
[4] Bangkok Hosp, Dept Orthoped Surg, Bangkok 10310, Thailand
[5] Rothman Inst Ctr City Philadelphia, Rothman Inst Orthoped, Philadelphia, PA 19107 USA
[6] Brigham & Womens Hosp, Dept Orthopaed Surg, Boston, MA 02115 USA
[7] Univ Saarland, Dept Trauma Hand & Reconstruct Surg, Homburg, Germany
[8] Johanna Etienne Hosp, Dept Orthopaed Surg, D-41462 Neuss, Germany
[9] Rhon Klinikum, Clin Hand Surg, Bad Neustadt an der Saale, Germany
[10] Univ Aachen, Med Ctr, Dept Orthopaed Trauma, D-52074 Aachen, Germany
[11] Univ Bern, Inselspital, Dept Orthopaed Surg, CH-3010 Bern, Switzerland
[12] Mayo Clin, Dept Orthoped Surg, Rochester, MN 55905 USA
[13] Univ Nottingham Hosp, Dept Trauma & Orthopaed, Nottingham NG7 2UH, England