1. Supplemental PowerPoint Slides
The Basis of Mechanical Instability in Degenerative Disc Disease: A Cadaveric Study of Abnormal Motion vs. Load Distribution.
Author: Dilip K. Sengupta MD, Dr. Med
Associate Professor
Department of Orthopedics
Dartmouth-Hitchcock Medical Center
One Medical Center Drive
Lebanon
NH 03756
Contact:
Phone:
Author: Haibo Fan PhD
Senior Research Associate
Biomechanics Laboratory
Copyright © 2012 Lippincott Williams & Wilkins. Unauthorized commercial reproduction of this slide is prohibited

2. Sp 61317 I L1 II L2 II L3
III L4
III L5 IV S1

3. *
296 ±115 * *
250 ±70
231 ±66
227 ±144 *
192 ±164 *
189 ±129
173 ±102
161 ±108
153 ±97
104 ±76
68 ±83
26 ±53
Figure 8. Mean nuclear pressure (+/- SD) measured from the central 1/3 of the disc space from intra-discal pressure profiles. The difference was found statistically significant (*) in Extension: I-III and I-IV, Flexion: I-IV, Neutral: I-IV and III-IV