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Burst Fractures of the Spine Wheeless

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Location: http://www.wheelessonline.com/ortho/burst_frx_of_spine

Description: fall from a height, landing on one's feet, is a typical cause of this fracture;
- burst frx involve only compressive failure of the vertebral body both anteriorly & posteriorly, w/ failure of both anterior & middle columns;
- axial loading applied to intravertebral disc results in increased nuclear pressure and hoop stresses in the annulus;
- this results in a high shear stress on the vertebral end plate at inner border of the annulus, away from the center of the disc;
- a large central posterior-superior fragment occurs as a result of these forces;

Type: Reference Material
Author/Contact: C.R.Wheeless
Institution: Duke
Primary Subject/Category:

Language: English

Submitted by: admin
Hits: 359
Added: Thu Aug 14 2008