Document Detail

Revision of failed metal-backed patellar component of Miller/Galante-I total knee prosthesis.
MedLine Citation:
PMID:  11180899     Owner:  NLM     Status:  MEDLINE    
Of 38 Miller/Galante-I total knee prostheses implanted between 1987 and 1990, 20 (53%) were revised. Failed metal-backed patella (15 knees; 40%) was the most frequent reason for revision. In most patients, the components were found well fixed to bone. The purpose of this study was to describe the revision technique we used for failed metal-backed patella. Total revision of all components would be ideal. However, removal of all components results in large bone loss, large blood loss, and a longer operation time. Because of the patients' relatively old age (78.7 years), less demanding activities of daily life (ADL), and the lower body weight of the Japanese patient, we chose a less invasive approach. The revision technique had the following features: (1) the grooved femoral component was not replaced, (2) the failed patellar component was replaced by an all-polyethylene patella, (3) synovectomy was performed, and (4) realignment of patellar tracking was done by lateral release and medial imbrication of the quadriceps mechanism. The mean follow-up after revision was 2 years, 4 months, and good short-term results were obtained. This less invasive approach would be beneficial for elderly patients whose ADL are less demanding.
M Kobori; S Kamisato; M Yoshida; K Kobori
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association     Volume:  5     ISSN:  0949-2658     ISO Abbreviation:  J Orthop Sci     Publication Date:  2000  
Date Detail:
Created Date:  2001-02-22     Completed Date:  2001-04-12     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9604934     Medline TA:  J Orthop Sci     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  436-8     Citation Subset:  IM    
Seirei Mikatahara Hospital, 3453 Mikatahara-cho, Hamamatsu, Shizuoka 433-8558, Japan.
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MeSH Terms
Arthritis, Rheumatoid / surgery
Knee Prosthesis*
Middle Aged
Osteoarthritis, Knee / surgery
Prosthesis Design
Prosthesis Failure
Comment In:
J Orthop Sci. 2001;6(3):302-3   [PMID:  11484128 ]

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