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Journal description
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Details for article 2 of 7 found articles
| Title: |
Contact stresses in lumbar total disc arthroplasty |
| Author: |
Wenzel, S.A. Shepherd, D.E.T. |
| Appeared in: |
Bio-medical materials and engineering |
| Paging: | Volume 17 (2007) nr. 3 pages 169-173 |
| Year: |
2007-05-04 |
| Contents: |
Total disc arthroplasty is gaining in popularity as an alternative to spinal fusion. A total disc consists of articulating bearing surfaces with one made from a metal and the other made from either a metal or a polymer. The aim of this study was to determine the contact stresses in lumbar total disc arthroplasty devices. The total disc was modelled as a ball and socket joint and Hertzian contact theory was used to determine the maximum contact stresses. The effect of material combination and implant size on contact stress was investigated. For a typical disc arthroplasty with a ball radius of 14 mm, the contact stresses for metal against polymer and metal against metal material combinations were 3 to 6 MPa and 63–130 MPa, respectively, and were below the fatigue strength of the materials. |
| Publisher: |
IOS Press |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 2 of 7 found articles
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