کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4064302 | 1604087 | 2006 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Comparison of Two Hydroxyapatite-Coated Femoral Stems : Clinical, Functional, and Bone Densitometry Evaluation of Patients Randomized to a Regular or Modified Hydroxyapatite-Coated Stem Aimed at Proximal Fixation Comparison of Two Hydroxyapatite-Coated Femoral Stems : Clinical, Functional, and Bone Densitometry Evaluation of Patients Randomized to a Regular or Modified Hydroxyapatite-Coated Stem Aimed at Proximal Fixation](/preview/png/4064302.png)
Clinical function, bone mineral density (BMD), and radiographs of 80 randomly allocated, hydroxyapatite-coated femoral stems of two differing lengths were studied for 2 years. The short stem was optimized for proximal fixation. The predictive value of bone densitometry was also studied. After 2 years, significantly more bone apposition and a higher BMD percentage were observed in Gruen zone 7 of the short stem. We conclude that stem design can be enhanced to achieve more proximal fixation. However, we found a higher incidence of pain with the short stem, indicating a trade-off between increased proximal fixation and diminished overall mechanical stability. No strong correlations between clinical function and radiographic evaluation of remodeling were found with BMD, suggesting that dual-energy x-ray absorptiometry has no predictive value for short-term clinical outcome.
Journal: The Journal of Arthroplasty - Volume 21, Issue 3, April 2006, Pages 344–352