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Patellar Skin Surface Temperature by Thermography Reflects Knee Osteoarthritis Severity

BACKGROUND: Digital infrared thermal imaging is a means of measuring the heat radiated from the skin surface. Our goal was to develop and assess the reproducibility of serial infrared measurements of the knee and to assess the association of knee temperature by region of interest with radiographic s...

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Autores principales: Denoble, Anna E., Hall, Norine, Pieper, Carl F., Kraus, Virginia B.
Formato: Texto
Lenguaje:English
Publicado: Libertas Academica 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2998980/
https://www.ncbi.nlm.nih.gov/pubmed/21151853
http://dx.doi.org/10.4137/CMAMD.S5916
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author Denoble, Anna E.
Hall, Norine
Pieper, Carl F.
Kraus, Virginia B.
author_facet Denoble, Anna E.
Hall, Norine
Pieper, Carl F.
Kraus, Virginia B.
author_sort Denoble, Anna E.
collection PubMed
description BACKGROUND: Digital infrared thermal imaging is a means of measuring the heat radiated from the skin surface. Our goal was to develop and assess the reproducibility of serial infrared measurements of the knee and to assess the association of knee temperature by region of interest with radiographic severity of knee Osteoarthritis (rOA). METHODS: A total of 30 women (15 Cases with symptomatic knee OA and 15 age-matched Controls without knee pain or knee OA) participated in this study. Infrared imaging was performed with a Meditherm Med2000™ Pro infrared camera. The reproducibility of infrared imaging of the knee was evaluated through determination of intraclass correlation coefficients (ICCs) for temperature measurements from two images performed 6 months apart in Controls whose knee status was not expected to change. The average cutaneous temperature for each of five knee regions of interest was extracted using WinTes software. Knee x-rays were scored for severity of rOA based on the global Kellgren-Lawrence grading scale. RESULTS: The knee infrared thermal imaging procedure used here demonstrated long-term reproducibility with high ICCs (0.50–0.72 for the various regions of interest) in Controls. Cutaneous temperature of the patella (knee cap) yielded a significant correlation with severity of knee rOA (R = 0.594, P = 0.02). CONCLUSION: The skin temperature of the patellar region correlated with x-ray severity of knee OA. This method of infrared knee imaging is reliable and as an objective measure of a sign of inflammation, temperature, indicates an interrelationship of inflammation and structural knee rOA damage.
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spelling pubmed-29989802010-12-10 Patellar Skin Surface Temperature by Thermography Reflects Knee Osteoarthritis Severity Denoble, Anna E. Hall, Norine Pieper, Carl F. Kraus, Virginia B. Clin Med Insights Arthritis Musculoskelet Disord Original Research BACKGROUND: Digital infrared thermal imaging is a means of measuring the heat radiated from the skin surface. Our goal was to develop and assess the reproducibility of serial infrared measurements of the knee and to assess the association of knee temperature by region of interest with radiographic severity of knee Osteoarthritis (rOA). METHODS: A total of 30 women (15 Cases with symptomatic knee OA and 15 age-matched Controls without knee pain or knee OA) participated in this study. Infrared imaging was performed with a Meditherm Med2000™ Pro infrared camera. The reproducibility of infrared imaging of the knee was evaluated through determination of intraclass correlation coefficients (ICCs) for temperature measurements from two images performed 6 months apart in Controls whose knee status was not expected to change. The average cutaneous temperature for each of five knee regions of interest was extracted using WinTes software. Knee x-rays were scored for severity of rOA based on the global Kellgren-Lawrence grading scale. RESULTS: The knee infrared thermal imaging procedure used here demonstrated long-term reproducibility with high ICCs (0.50–0.72 for the various regions of interest) in Controls. Cutaneous temperature of the patella (knee cap) yielded a significant correlation with severity of knee rOA (R = 0.594, P = 0.02). CONCLUSION: The skin temperature of the patellar region correlated with x-ray severity of knee OA. This method of infrared knee imaging is reliable and as an objective measure of a sign of inflammation, temperature, indicates an interrelationship of inflammation and structural knee rOA damage. Libertas Academica 2010-10-15 /pmc/articles/PMC2998980/ /pubmed/21151853 http://dx.doi.org/10.4137/CMAMD.S5916 Text en © the author(s), publisher and licensee Libertas Academica Ltd. This is an open access article. Unrestricted non-commercial use is permitted provided the original work is properly cited.
spellingShingle Original Research
Denoble, Anna E.
Hall, Norine
Pieper, Carl F.
Kraus, Virginia B.
Patellar Skin Surface Temperature by Thermography Reflects Knee Osteoarthritis Severity
title Patellar Skin Surface Temperature by Thermography Reflects Knee Osteoarthritis Severity
title_full Patellar Skin Surface Temperature by Thermography Reflects Knee Osteoarthritis Severity
title_fullStr Patellar Skin Surface Temperature by Thermography Reflects Knee Osteoarthritis Severity
title_full_unstemmed Patellar Skin Surface Temperature by Thermography Reflects Knee Osteoarthritis Severity
title_short Patellar Skin Surface Temperature by Thermography Reflects Knee Osteoarthritis Severity
title_sort patellar skin surface temperature by thermography reflects knee osteoarthritis severity
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2998980/
https://www.ncbi.nlm.nih.gov/pubmed/21151853
http://dx.doi.org/10.4137/CMAMD.S5916
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