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Quantitative assessment of foot structure in rheumatoid arthritis by a foot digitizer allows detection of deformities, even in the absence of erosions.
MedLine Citation:
PMID:  22807070     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: Foot involvement is a major feature in RA, leading to structural deformities. Methods to allow a 3D evaluation of foot structure in RA, applicable in daily clinical practice have not been evaluated. This study assesses the use of a foot digitizer, a non-invasive 3D scanner collecting objective quantitative data of the feet, to evaluate the presence of foot structure abnormalities in an RA outpatient cohort. METHODS: Foot digitizer data of RA patients was compared with healthy controls. Subanalyses were performed to find relations with erosive disease and the presence of swollen and/or tender joints. Linear mixed models were applied with correction including gender, age, bodyweight and height, foot length, DAS 28, disease duration. RESULTS: Forty one percent of the patients showed more than one abnormal parameter, measured with the 3D foot scanner. Most differences found were located in the forefoot, the most frequently affected area of the RA foot. Strikingly, even in the absence of joint erosions, marked alterations were found. Comparable differences were also observed between the patients with and without swollen and/or tender joints. Additionally, alterations were not strongly related to foot pain and disability, suggesting its capacity to detect early changes in foot structure. CONCLUSION: The results highlight the impact of RA on foot structure, even in the absence of clinical signs of swelling or radiographic erosions. The foot digitizer offers a valuable tool to screen for such foot deformities, before the presence of erosions.
Authors:
Sophie De Mits; Herman Mielants; Dirk De Clercq; Jim James Woodburn; Philip Roosen; Dirk Elewaut
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-17
Journal Detail:
Title:  Arthritis care & research     Volume:  -     ISSN:  2151-4658     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101518086     Medline TA:  Arthritis Care Res (Hoboken)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 by the American College of Rheumatology.
Affiliation:
Rehabilitation Sciences and Physiotherapy, Ghent University and Artevelde University College, Ghent, Belgium.
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