Document Detail

Common causes of failed unicompartmental knee arthroplasty: a single-centre analysis of four hundred and seventy one cases.
MedLine Citation:
PMID:  24402555     Owner:  NLM     Status:  Publisher    
PURPOSE: We performed this retrospective study to determine the main causes for early and late failures of unicompartmental knee arthroplasty (UKA).
METHODS: Between January 2000 and March 2012, all patients treated for a failed medial UKA in the authors' institution were retrospectively reviewed. A total of 471 patients were identified, and causes of failure were analysed based on the medical records and radiographs at the time of revision.
RESULTS: The cohort included 161 males and 310 females, with a mean age of 67.7 years (range, 42-91 years; SD = 10.1) at the time of revision. The mean time from index arthroplasty to revision surgery was 6.1 years (range, 0.1-27.9 years; SD = 5.6). A total of 254 cases (53.9 %) failed within five years after primary implantation, and 108 cases (22.9 %) failed after ten years. The major reason for failure was the development of other compartment arthritis (39.5 %), followed by aseptic loosening (25.4 %).
CONCLUSIONS: Of importance, the mean time to failure after UKA was 6.1 years, with more than 50 % of failures occurring within the first five years postoperatively.
Mustafa Citak; Kathrin Dersch; Atul F Kamath; Carl Haasper; Thorsten Gehrke; Daniel Kendoff
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-1-9
Journal Detail:
Title:  International orthopaedics     Volume:  -     ISSN:  1432-5195     ISO Abbreviation:  Int Orthop     Publication Date:  2014 Jan 
Date Detail:
Created Date:  2014-1-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7705431     Medline TA:  Int Orthop     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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