Document Detail

The survivorship of protrusio cages for metastatic disease involving the acetabulum.
MedLine Citation:
PMID:  20499295     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Metastatic disease commonly affects the proximal femur and occasionally the acetabulum. Surgical options include the use of a protrusio cage with a THA. However, the complications and survivorship of these cages for this indication is unknown.
QUESTIONS/PURPOSES: The purpose was to report the restoration of function, complications and implant survival.
METHODS: The medical records of 29 patients undergoing insertion of a protrusio cage for metastatic pelvic disease were reviewed. Complications were recorded. The most common diagnosis was metastatic breast cancer. During the review process, all but 10 of the 29 patients died 1-73 months after surgery. The median length of survival was 12 months (range, 3 days-100 months) after the procedure; 11 patients were alive at last followup at a median of 16 months (range, 1-100 months).
RESULTS: One patient had loss of fixation owing to disease progression. Five patients had dislocations, four of which were treated. There were three deep infections (two that led to dislocation, which proceeded to revision surgery). Ten patients of the 29 patients became household ambulators, 17 became community ambulators, two remained chair-bound, and one bed-bound.
CONCLUSIONS: The protrusio cage allowed most patients to return to walking with only one mechanical failure.
Mark Clayer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical orthopaedics and related research     Volume:  468     ISSN:  1528-1132     ISO Abbreviation:  Clin. Orthop. Relat. Res.     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-09-30     Completed Date:  2010-10-21     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  0075674     Medline TA:  Clin Orthop Relat Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2980-4     Citation Subset:  AIM; IM    
Department of Orthopaedics, Royal Adelaide Hospital, Frome Road, Adelaide, SA, 5000, Australia.
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MeSH Terms
Acetabulum / pathology,  surgery*
Aged, 80 and over
Arthroplasty, Replacement, Hip / adverse effects,  instrumentation*
Bone Neoplasms / mortality,  physiopathology,  secondary,  surgery*
Hip Dislocation / etiology,  surgery
Hip Joint / pathology,  physiopathology,  surgery*
Hip Prosthesis*
Kaplan-Meier Estimate
Middle Aged
Prosthesis Design
Prosthesis Failure
Prosthesis-Related Infections / etiology,  surgery
Recovery of Function
South Australia
Time Factors
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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