Abstract
Previous studies have suggested that femoral component positioning in resurfacing arthroplasty may affect strains in the femoral neck that could lead to decreased implant longevity, A strain gaged, Sawbones® model was used to determine the femoral neck strains for a variety of resurfacing head translations and angulations. We found that head positions affected strain distributions, most positions leading to increased neck strains, often over 100%, with the exception being a varus head position where the superior neck strains decreased over 50%. Although the clinical meaning of these findings is unclear, it could be of concern for stress-shielding or fatigue fracture of the femoral neck.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 341-346 |
| Number of pages | 6 |
| Journal | Bulletin of the NYU Hospital for Joint Diseases |
| Volume | 67 |
| Issue number | 4 |
| State | Published - 2009 |
| Externally published | Yes |
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
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Cite this
Kummer, F. J., Pereira, G. C., Schachter, A. K., & Jaffe, W. L. (2009). Femoral component positioning in resurfacing arthroplasty: Effects on cortical strains. Bulletin of the NYU Hospital for Joint Diseases, 67(4), 341-346.