Document Detail

Two-year radiologic assessment of the Trident Peripheral Self-Locking cup using EBRA.
MedLine Citation:
PMID:  23100151     Owner:  NLM     Status:  Publisher    
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.
Perrico Nunag; Angela H Deakin; Ezekiel Oburu; Martin Sarungi
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-19
Journal Detail:
Title:  Hip international : the journal of clinical and experimental research on hip pathology and therapy     Volume:  -     ISSN:  1724-6067     ISO Abbreviation:  Hip Int     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9200413     Medline TA:  Hip Int     Country:  -    
Other Details:
Languages:  ENG     Pagination:  0     Citation Subset:  -    
Department of Orthopaedics, Golden Jubilee National Hospital, Glasgow - UK.
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