Document Detail

Obesity does not imply poor outcomes in Asians after total knee arthroplasty.
MedLine Citation:
PMID:  23212771     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: In Asia, obesity has reached epidemic proportions and physicians are likely to face a burden of obesity-related disorders, of which osteoarthritis of the knee is one. However, it is unclear whether obesity affects improvement of conventional TKAs in Asian patients.
PURPOSE: We therefore asked whether obese patients with a BMI of 30 kg/m(2) or greater would have worse ROM and function after TKA compared with their nonobese counterparts and whether they would have less improvement preoperatively to postoperatively.
METHODS: We retrospectively reviewed 369 patients who underwent TKAs from 2006 to 2010. We stratified patients into four groups: (1) 98 patients with BMIs less than 25 kg/m(2); (2) 158 patients with BMIs between 25 kg/m(2) and 29.9 kg/m(2); (3) 87 patients with BMIs between 30 kg/m(2) and 34.9 kg/m(2); and (4) 26 patients with BMIs greater than 35 kg/m(2). We then compared ROM, function score, Knee Society score, Oxford Knee Questionnaire, and SF-36 questionnaire(®) across the four groups at 6- and 12-month follow-ups.
RESULTS: At the 6-month followup, we found a difference only in the ROM. At the 2-year followup, there were no differences in any functional scores across the four groups. Severely obese patients had greater improvement in postoperative ROM than the other groups but did not have any greater improvement in function.
CONCLUSION: BMI had little clinical impact on short-term outcomes of conventional TKAs in Asian patients. The data suggest that BMI should not be used as a major determinant to exclude obese patients from surgery with the presumption of poorer outcomes.
Hamid Rahmatullah Bin Abd Razak; Hwei Chi Chong; Andrew Hwee Chye Tan
Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2012-12-05
Journal Detail:
Title:  Clinical orthopaedics and related research     Volume:  471     ISSN:  1528-1132     ISO Abbreviation:  Clin. Orthop. Relat. Res.     Publication Date:  2013 Jun 
Date Detail:
Created Date:  2013-05-02     Completed Date:  2013-06-25     Revised Date:  2014-06-03    
Medline Journal Info:
Nlm Unique ID:  0075674     Medline TA:  Clin Orthop Relat Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1957-63     Citation Subset:  AIM; IM    
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MeSH Terms
Aged, 80 and over
Arthroplasty, Replacement, Knee / adverse effects*
Body Mass Index
Disability Evaluation
Health Status
Knee Joint / physiopathology,  surgery*
Middle Aged
Obesity / complications*,  diagnosis
Osteoarthritis, Knee / complications,  surgery*
Postoperative Complications / etiology*
Range of Motion, Articular
Recovery of Function
Retrospective Studies
Severity of Illness Index
Treatment Outcome
Comment In:
Clin Orthop Relat Res. 2013 Oct;471(10):3381   [PMID:  23846600 ]
Erratum In:
Clin Orthop Relat Res. 2013 Oct;471(10):3391

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

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