| Literature DB >> 2781407 |
T S Keller1, T H Hansson, A C Abram, D M Spengler, M M Panjabi.
Abstract
The compressive mechanical properties of human lumbar vertebral trabeculae were examined on the basis of anatomic origin, bone density, and intervertebral disc properties. Trabecular bone compressive strength and stiffness increased with increasing bone density, the latter proportional to strength and stiffness to the one-half power. Regional variations within each segment were found, the most prevalent differences occurring in regions of bone overlying the disc nucleus in comparison with bone overlying the disc anulus. For normal discs, the ratio of strength of bone overlying the disc nucleus to bone overlying the disc anulus was 1.25, decreasing to 1.0 for moderately degenerated discs. These results suggest that an interdependency of trabecular bone properties and intervertebral disc properties may exist.Entities:
Mesh：
Year: 1989 PMID： 2781407 DOI： 10.1097/00007632-198909000-00016
Source DB: PubMed Journal: Spine (Phila Pa 1976) ISSN： 0362-2436 Impact factor: 3.468