Biomechanical Testing of Cadaveric Specimens: Importance of Bone Mineral Density Assessment

Author:

Ambrose Catherine G.1,Kiebzak Gary M.2,Sabonghy E. Peter1,Tabor Owen B.34,Peindl Richard D.3,Clanton Thomas O1,Anderson Robert A.5,Davis W. Hodges5

Affiliation:

1. Department of Orthopaedics, University of Texas Houston Health Science Center, Houston, TX

2. Center for Orthopaedic Research and Education, St. Luke's Episcopal Hospital and Department of Orthopaedic Surgery, Baylor College of Medicine, Houston, TX

3. Orthopaedic Surgery Department, Carolinas Medical Center, Charlotte, NC

4. Tabor Orthopaedics, Memphis, TN

5. Miller Orthopaedic Clinic, Charlotte, NC

Abstract

The bone density of cadaveric specimens is highly variable and has a significant effect on the results of biomechanical testing but it is not often assessed before testing is performed in the lab. Bone mineral density (BMD) tests such as dual X-ray absorptiometry (DXA) are widely available, easy to perform and correlate highly and significantly with bone strength in many modes of failure. We present the results of two different studies performed on cadaveric foot and ankle specimens. In these studies the results vary significantly according to BMD, and this effect is not always eliminated with the use of matched pairs of cadaveric specimens.

Publisher

SAGE Publications

Subject

Orthopedics and Sports Medicine,Surgery

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