Michael E. Janssen, DO's portrait
Michael E. Janssen, DO
Clinical Associate Professor
University of Colorado
Thornton, CO

About Michael E. Janssen, DO

Dr. Janssen is Board Certified in both the American Board of Orthopaedic Surgeons and the American Board of Spine Surgeons. He attended the University of Health Sciences in Kansas City, MO. His internship and residency were completed at the Medical College of Georgia. He completed a spine fellowship both at Lakewood Orthopaedic Clinic and in St.Gallen, Switzerland.

Dr. Janssen is a clinical associate professor at the University of Colorado. He enjoys research, national and international lecturing, and teaching as well as keeping up with current trends in the care of patients with spinal disorders. His hobbies include: snow skiing, snowmobiling, water skiing, motorcycles, scuba diving and fly fishing.


1. Congenital Absence of Pericardium: An Unusual Cause of Atypical Angina. Ann. Thoracic Surgery, Chapman, J., Rubin, J., Gorr, C., Janssen, M. 45:91-93, 1988.

2. Lumbar Herniated Disk Disease: Comparison of MRI, Myelography, and Post-Myelogram CT with Surgical Findings. Orthopaedics Vol. 17 #2 Pages 121-128 February 1994.

3. Sexual Functions Following Spinal Arthrodesis. Orthopaedics Today, Vol. 13, #12 December 1993.

4. A Correlation of Cervical Magnetic Resonance Imaging and Discography / Computed Tomographic Discograms. Spine Dec. 15, 1994 Volume 19, Number 24.

5. Epidural Abscess Following Cervical Discography. Complications in Orthopaedics, Summer, 1994.

6. Treatment of Subtrochanteric Fractures of the femur: reduction on the traction table and fixation with dynamic condylar screw. Arch Orthopaedic Trauma Surgery, 1994, 113(3): 138-141.

7. Primary Femoral Shortening Osteosynthesis in the Management of Comminuted Supracondylar Femoral Fractures. Arch Orthopaedic Trauma Surgery, 1994 113(3) 134-137.

8. Early Complications of a Posterior Cervical Screw and Rod Construct. Ruggiero, Sasso, Janssen. Submitted to Cervical Spine Research Society and Spine, 1999.

9. Biological Cages: Specific Tools and Implants in Minimally Invasive Spine Surgery. European Spine Journal, 2000, 9(1): S102-109.

10. A safer posterior lumbar interbody fusion: Abstract. Submitted for Publication.

11. Biomechanics of machined femoral allograft bone for anterior lumbar fusions. Journal of Biomechanics, September 2001. Volume 34 Supplement 1, page S6.

12. Stability of posterior cervical fixation with screw/rod constructs. Journal of Biomechanics, September 2001. Volume 34 Supplement 1, page S61.

13. Biomechanics of variable angle screw fixation in anterior plating of the cervical spine. Journal of Biomechanics, September 2001. Volume 34 Supplement 1, page S61.

14. Outcomes of allogenic cages anterior and posterior lumbar interbody fusion. European Spine Journal, Oct. 2001. Volume 10: S158 - S168.

15. Rectangular PLIF cage helps restore lordosis, prevent migration. Orthopedics Today, November 2001. Volume 21, Number 10, page 17.

16. Outcomes of allogenic cages in anterior and posterior lumbar interbody fusion. The Use of Bone Substitutes in Spine Surgery: A State of the Art Review, November 2002, 74-84.


1. The Spine in Sports, Mosby, Copyright 1996, Chapter fifty-one, Skiing, pg. 541.

2. Languages of the Spine, Editor, Copyright 1995.

3. Tricks of the Trade in Spine Surgery, Copyright 2001.

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