Document Detail

The relationship of the medially-offset stem of the tibial component to the medial tibial cortex in total knee replacements in Korean patients.
MedLine Citation:
PMID:  18160496     Owner:  NLM     Status:  MEDLINE    
We examined the placement of the stem in relation to the medial tibial cortex when using total knee replacements (TKRs) with medially-offset tibial stems in Korean patients. Measurements were performed on the pre- and post-operative radiographs of 246 osteoarthritic knees replaced between January 2005 and May 2006 using the Genesis II or E-motion TKR with a medially-offset stem. Pre-operatively, we measured the distance between the mechanical axis and that of the tibial shaft and post-operatively, that between the midline of the tibial stem and the axis of the shaft. Knees were identified in which there was radiological contact between the tip of the stem and the medial tibial cortex. The mechanical axis was located medial to the axis of the shaft in 203 knees (82.5%). Post-operatively, the midline of the tibial stem was located medial to the tibial shaft axis in 196 knees (79.7%). In 16 knees (6.5%) there was radiological contact between the tibial stem or cement mantle and the medial tibial cortex. Our study has shown that the medially-offset stem in the tibial component may not be a good option for knees undergoing replacement for advanced osteoarthritis in some Korean patients.
J H Yoo; Y G Kang; C B Chang; S C Seong; T K Kim
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of bone and joint surgery. British volume     Volume:  90     ISSN:  0301-620X     ISO Abbreviation:  J Bone Joint Surg Br     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2007-12-27     Completed Date:  2008-05-08     Revised Date:  2010-11-10    
Medline Journal Info:
Nlm Unique ID:  0375355     Medline TA:  J Bone Joint Surg Br     Country:  England    
Other Details:
Languages:  eng     Pagination:  31-6     Citation Subset:  AIM; IM    
Department of Orthopaedic Surgery, National Police Hospital, 58 Garak-dong Street, Songpa-gu, Seoul 138-708, Korea.
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MeSH Terms
Aged, 80 and over
Arthroplasty, Replacement, Knee / methods*
Asian Continental Ancestry Group
Knee Joint / radiography,  surgery*
Knee Prosthesis*
Middle Aged
Osteoarthritis, Knee / radiography,  surgery*
Prosthesis Design*
Tibia / radiography*

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

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