Carbon Dioxide Laser in Neurosurgery. Temple University, Philadelphia, PA, December 1985.
Computed Tomography Stereotaxis Workshop. Oral Roberts University, Tulsa, OK, March 1987.
14th Annual Course on Computed Tomography and Magnetic Resonance Imaging of the Head, Neck & Spine. Rush Medical College, Chicago, IL 1987.
Plate Fixation of the Lumbar Spine. Cleveland, OH, November 1987.
Review Course in Neurosurgery. The Cook County Graduate School of Medicine, Chicago, IL, 1988.
Anterior Cervical Fusion: A New Technique. Jefferson Medical College, Philadelphia, PA September 1989.
2nd Annual Spine Workshop, Cervical Program. Uniformed Services, University of the Health Services, Bethesda MD, June 1990.
Automatic Percutaneous Lumbar Discectomy Workshop. Washington, D.C., November 1990.
3rd Annual Spine Workshop, Thoraco-lumbar Program. Uniformed Services, University of the Health sciences, Bethesda, MD, June 1991.
ISOLA Spinal System: Principles and Practice Seminar. Secaucus, NJ, September 1991.
KTP/532 Laser Disc Decompression Workshop. Williamsburg, VA, November 1991.
Advanced ISOLA Seminar. University of Kansas, Kansas City, KS, October 1994.
Neuroradiology: The Essentials. Philadelphia, PA, September 1995.
5th Instructional Course of the Cervical Spine Research Society. Palm Beach, Florida, December 1996.
Interbody Fusion Workshop, Allegheny University of the Health Sciences, MCP, Hahnemann School of Medicine, January 1997.
Microsurgery of the Brain, Cranial Nerves and Skull Base – Hands On, St. Louis, MO, February 1997.
Sofamore Danek Micro-Endoscopic Discectomy Course. New York City, NY, March 1997.
BAK Laparoscopic Lumbar Interbody Fusion Spine Course. Philadelphia, PA, March 1998.
6th Instructional Course of the Cervical Spine Research Society. Atlanta, GA, December 1998.
Treatment of Discogenic Pain, IDET Training Workshop at UMDNJ. New Jersey School of Medicine and Dentistry, Newark, NJ, December 4, 1999.
7th Instructional Course of the Cervical Spine Research Society, Charleston, SC, November 30 – December 2, 2000.
8th Instructional Course of the Cervical Spine Research Society, Monterey, CA, November 19 – December 2, 2001.
Innovations in Spinal Fixation: An Advanced Course, American Association of Neurological Surgeons, Memphis, TN, July 27-28, 2002.
Dynesys: The Dynamic Stabilization System. Thomas Jefferson University Hospital, Philadelphia PA, January 8, 2005.
Charite’ Artificial Disc Comprehensive Training Program. Cincinnati, OH, May 23-24, 2005.
11th Instructional Course, Cervical Spine Research Society, Palm Beach, Florida, November 29, 2006.
13th Instructional Course, Cervical Spine Research Society, Austin, Texas, Dec. 3, 2008
The Penn International Rhinology and Comprehensive Skull Base Courses. Philadelphia, PA, March 11-14, 2010.
17th Instructional Course, Cervical Spine Research Society, Chicago, Illinois, Dec. 5, 2012.