Distribution of Periacetabular Osteolytic Lesions Varies According to Component Design
| Autor: | Roumen Stamenkov, David J. Taylor, Donald W. Howie, David M. Findlay, Margaret A. McGee, S D Neale |
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| Rok vydání: | 2010 |
| Předmět: |
Adult
Male Reoperation medicine.medical_specialty Arthroplasty Replacement Hip Computed tomography Osteolysis Prosthesis Design Lesion Humans Medicine Orthopedics and Sports Medicine Aged medicine.diagnostic_test business.industry Significant difference Acetabulum Middle Aged Prosthesis Failure Surgery Female Hip Joint Component (group theory) Hip Prosthesis medicine.symptom Tomography X-Ray Computed business Nuclear medicine |
| Zdroj: | The Journal of Arthroplasty. 25:913-919 |
| ISSN: | 0883-5403 |
| DOI: | 10.1016/j.arth.2009.08.003 |
| Popis: | Using computed tomography, the volume, location, and number of osteolytic lesions were determined adjacent to 38 Harris-Galante 1 (HG-1) acetabular components fixed with screws and 19 porous-coated anatomic (PCA) acetabular components press-fitted without screws. The median implantation times were 16 and 15 years, respectively. The mean total lesion volumes were similar: 11.1 cm(3) (range, 0.7-49 cm(3)) and 9.8 cm(3) (range, 0.4-52 cm(3)), respectively, for hips with HG-1 and PCA components (P = .32). There was a significant difference in the proportion of rim-related, screw or screw hole-related, and combined lesions between the 2 component designs (P.0001). HG-1 components had more screw and screw hole-related lesions, and PCA components had more rim-related lesions. Although there are concerns regarding screw and screw hole-associated osteolysis, these findings suggest that peripheral fixation may be well maintained in the long term with the use of multiple-hole acetabular components with screw fixation. |
| Databáze: | OpenAIRE |
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