1. A Dynamic Study of Thoracolumbar Burst Fractures by Ruth K. Wilcox, Thomas O. Boerger, David J. Allen, David C. Barton, David Limb, Robert A. Dickson, and Richard M. Hall J Bone Joint Surg Am Volume 85(11):2184-2189 November 1, 2003 ©2003 by The Journal of Bone and Joint Surgery, Inc.

2. Experimental apparatus for drop-weight tests showing the setup for the high-speed video experiments (Fig. 1-A) and the pressure measurements (Fig. 1-B). Ruth K. Wilcox et al. J Bone Joint Surg Am 2003;85:2184- 2189 ©2003 by The Journal of Bone and Joint Surgery, Inc.

3. Finite element model at the initial point of fragment projection. Ruth K. Wilcox et al. J Bone Joint Surg Am 2003;85:2184- 2189 ©2003 by The Journal of Bone and Joint Surgery, Inc.

4. Typical graph of canal occlusion versus time as well as representative images at 0, 4, 10, and 20 msec after impact. Ruth K. Wilcox et al. J Bone Joint Surg Am 2003;85:2184- 2189 ©2003 by The Journal of Bone and Joint Surgery, Inc.

5. Graphs of energy of impact versus maximum (Fig. 4-A) and final (Fig. 4-B) levels of canal occlusion as measured from the high-speed video. Ruth K. Wilcox et al. J Bone Joint Surg Am 2003;85:2184- 2189 ©2003 by The Journal of Bone and Joint Surgery, Inc.

6. Mean-difference graphs of computed tomography-measured occlusion and maximum video- measured occlusion (Fig. 5-A) and computed tomography-measured occlusion and final video- measured occlusion (Fig. 5-B). Ruth K. Wilcox et al. J Bone Joint Surg Am 2003;85:2184- 2189 ©2003 by The Journal of Bone and Joint Surgery, Inc.