| Autor: |
Stulberg, Bernard N., Fitts, Stephanie M., Zadzilka, Jayson D., Trier, Kathy |
| Zdroj: |
Bulletin of the NYU Hospital for Joint Diseases; 2009, Vol. 67 Issue 2, p138-141, 4p |
| Abstrakt: |
The suitability of third-generation metal-on-metal hip resurfacing products for patients with a primary diagnosis of osteonecrosis has been debated. The preservation of femoral head bone stock for femoral prosthetic support is essential for the long-term stability of implants. A modern hip resurfacing system was implanted in 1148 hips as part of a United States multicenter investigational device exemption study. Of these, 116 hips had a preoperative diagnosis of osteonecrosis and were compared to 1023 hips with osteoarthritis. Survival rates were not significantly different (95.9% and 95.8% at 24 months for osteoarthritis and osteonecrosis respectively, p = 0.46). Resurfacing arthroplasty for patients with osteonecrosis appears to be a reasonable alternative, taking into consideration implant size, patient gender, and size of femoral deficiency: Further characterization is needed to identify those specific patients with osteonecrosis for whom resurfacing arthroplasty would be appropriate. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
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