Two-year radiologic assessment of the Trident Peripheral Self-Locking cup using EBRA
| Autor: | Martin Sarungi, Perrico Nunag, Ezekiel Oburu, Angela H. Deakin |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Adult
Joint Instability Male Radiography Arthroplasty Replacement Hip Health Status Aseptic loosening Prosthesis Design Severity of Illness Index Disability Evaluation Prosthesis Fitting Retrospective analysis Self locking Medicine Humans Orthopedics and Sports Medicine Aged Retrospective Studies Aged 80 and over Pain Postoperative business.industry Middle Aged Peripheral Prosthesis Failure Equipment Failure Analysis Quality of Life Surgery Female Hip Joint Hip Prosthesis business Nuclear medicine Biomedical engineering |
| Zdroj: | Hip international : the journal of clinical and experimental research on hip pathology and therapy. 22(5) |
| ISSN: | 1724-6067 |
| Popis: | We performed a radiologic assessment of the Trident Peripheral Self-Locking cup 2 years after implantation to assess early migration behaviour and to establish if incomplete postoperative seating correlated with early instability. A retrospective analysis of 30 cases was performed using EBRA. No cups had acetabular screws. Average total migration was 1.5 mm (range 0.1 to 5.9 mm). Seventeen showed total migration >1 mm and 7 of these showed further migration >2 mm (range 2.3 to 5.9 mm). Twenty cups demonstrated incomplete seating on initial post-operative radiographs (mean 1.4 mm, range 0.3 to 3.0). No relationship between incomplete seating and migration was identified (p = 0.86). The majority of gaps consolidated at differing times within the 2 year period. Oxford Hip scores showed significant improvement after surgery (p = 0.001) and this was independent of migration (p = 0.76). At 5 years there were no revisions for aseptic loosening. Conclusion The majority of the cups demonstrated early radiographic instability, and this was not related to incomplete seating. Five year functional outcome appears good and independent of migration and initial seating. |
| Databáze: | OpenAIRE |
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