2002
- Advanced cervical spine course (Garmisch-Partenkirchen)
- Dynesys-Meeting (Lenzburg)
- Spinal Cord Stimulation Symposium, Schweiz. Paraplegikerzentrum (Nottwil)
- Cervical Disc Preothesis Training Course (Bordeaux)
- Advanced Techniques for interbody fusion and pedicle screw fixation (St. Louis, USA)