Document Detail


Noninvasive acceleration measurements to characterize knee arthritis and chondromalacia.
MedLine Citation:
PMID:  7762885     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Devising techniques and instrumentation for early detection of knee arthritis and chondromalacia presents a challenge in the domain of biomedical engineering. The purpose of the present investigation was to characterize normal knees and knees affected by osteoarthritis, rheumatoid arthritis, and chondromalacia using a set of noninvasive acceleration measurements. Ultraminiature accelerometers were placed on the skin over the patella in four groups of subjects, and acceleration measurements were obtained during leg rotation. Acceleration measurements were significantly different in the four groups of subjects in the time and frequency domains. Power spectral analysis revealed that the average power was significantly different for these groups over a 100-500 Hz range. Noninvasive acceleration measurements can characterize the normal, arthritis, and chondromalacia knees. However, a study on a larger group of subjects is indicated.
Authors:
N P Reddy; B M Rothschild; M Mandal; V Gupta; S Suryanarayanan
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Annals of biomedical engineering     Volume:  23     ISSN:  0090-6964     ISO Abbreviation:  Ann Biomed Eng     Publication Date:    1995 Jan-Feb
Date Detail:
Created Date:  1995-06-29     Completed Date:  1995-06-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0361512     Medline TA:  Ann Biomed Eng     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  78-84     Citation Subset:  IM    
Affiliation:
Biomedical Engineering Department, University of Akron, OH 44325-0302, USA.
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MeSH Terms
Descriptor/Qualifier:
Acceleration*
Adult
Aged
Arthritis, Rheumatoid / diagnosis,  physiopathology*
Biomechanics
Cartilage Diseases / diagnosis,  physiopathology*
Case-Control Studies
Humans
Knee Joint*
Middle Aged
Osteoarthritis / diagnosis,  physiopathology*
Rotation
Signal Processing, Computer-Assisted

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


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