Two-year radiologic assessment of the Trident Peripheral Self-Locking cup using EBRA
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Date
2012Author
Nunag, P
Deakin, A
Oburu, E
Sarungi, M
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
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
URI
http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/48474http://www.ncbi.nlm.nih.gov/pubmed/23100151
Citation
Hip Int 2012; 22(5): 511 - 515Publisher
University of Nairobi School of Medicine
Collections
- Faculty of Health Sciences (FHS) [10387]