Clinical and radiological outcome of hydroxyapatite-coated femoral stem in revision hip arthroplasty
| Autor: | E. J. van Langelaan, Taco Gosens |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Adult
Reoperation medicine.medical_specialty Arthroplasty Replacement Hip Aseptic loosening Femoral stem Coated Materials Biocompatible Medicine Humans Orthopedics and Sports Medicine Prospective Studies Prospective cohort study Revision hip arthroplasty Aged Original Paper business.industry Femoral canal Middle Aged Surgery Prosthesis Failure medicine.anatomical_structure Durapatite Treatment Outcome Radiological weapon Orthopedic surgery Hip Joint Hip Prosthesis Joint Diseases business Cortical thickening |
| Popis: | We used a proximally hydroxyapatite-coated femoral stem in revision arthroplasty of 48 cases with aseptic loosening and Paprosky defect class 1 or 2. We reviewed the outcome after 6.1 (4--9.3) years. The clinical outcome was good, with a mean postoperative HHS of 90 (51--100) points. There were five reoperations all on the acetabular side and none for the femoral stem. At follow-up, we observed cancellous sclerosis radiographically in 19 cases-especially in non-tightly fitted stems and mainly in Gruen zones 2 and 6. In 13 cases, cortical thickening was seen, mainly in Gruen zones 3 and 5 and especially in tightly fitted stems. These bony changes were significant and not related to any clinical parameter. They started to appear from 6 months onward, with increasing frequency with longer follow-up. We find that the standard Mallory-Head hydroxyapatite-coated femoral stem is suitable for revision in cases with lower-class femoral defects. |
| Databáze: | OpenAIRE |
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