L. de Smet : Leuven University Hospitals, Belgium-
Orthopaedic department, Hand Unit. F. Schuind : Department
of Orthopaedics and Traumatology-Erasme University
Hospital-808 route de Lennik-B-1070 Brussels Belgium. I.
Degreef : Leuven University Hospitals, Belgium-Orthopaedic
department, Hand Unit. W. Elkazzi : Department of
Orthopaedics and Traumatology, Erasme ULB University
Hospital, Bruxelles Belgium