Post-graduate formation
- Research fellow, Laboratory for Experimental Surgery, Davos (Prof. S. M. Perren), 1978-1981
- Resident, General Surgery and Orthopaedics, Hôpital de district, Sierre, (Dr. F. F. Bagnoud, PD Dr. A. Boitzy, Dr. S. Drozdowski), 1981-1982
- Research fellow, Laboratory for Experimental Surgery, Davos (Prof. S. M. Perren), 1982
- Resident, Dept. of Heart, Thorax and Vascular Surgery of the University of Bern, Inselspital (Prof. A. Senn), 1983
- Research fellow, Laboratory for Experimental Surgery, Davos (Prof. S. M. Perren), 1983
- Resident, Dept. of Orthopaedic Surgery of the University of Bern, Inselspital (Prof. R. Ganz), 1984-1988
- Attending Orthopaedic Surgeon, Dept. of Orthopaedic Surgery of the University of Bern, Inselspital (Prof. R. Ganz), 1990-1996
- Attending Orthopaedic Surgeon, Foot & Ankle Surgery and joint preserving hip and pelvic surgery and Head, Section clinical research, ATOS – Klinik, Heidelberg, Germany, 1997
- Chief, Division of Orthopaedics and Traumatology, Regional general Hospital, Bellinzona, 1998-2001