Publication: Infrared thermography, intratendon vascular resistance and echotexture in athletes with patellar tendinopathy: a cross-sectional study
Authors
Molina Payá, Francisco J. ; Ríos Díaz, José ; Carrasco Martínez, Francisco ; Martínez Payá, Jacinto Javier
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Publisher
SAGE Publications
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DOI
https://doi.org/10.1177/01617346231153581
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info:eu-repo/semantics/article
Description
© The Author(s) 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This document is the Accepted, version of a Published Work that appeared in final form in Ultrasonic Imaging. To access the final edited and published work see https://doi.org/10.1177/01617346231153581
Abstract
Background: Ultrasonographic signs of tendinopathies are an increase in
thickness, loss of alignment in collagen fibers and the presence of
neovascularization. Nevertheless, analysis of intratendinous vascular
resistance (IVR) can be more useful for understanding the physiological
state of the tissue.
Objective: To show thermal, echotextural and Doppler signal differences
in athletes with patellar tendinopathy and controls.
Methods: Twenty-six athletes with patellar tendinopathy (PT)
participants (30.1 yrs; SD= 9.0 yrs) and 27 asymptomatic athletes (23.3
yrs; SD= 5.38 yrs) were evaluated with thermographic and Doppler
ultrasonography (DS). Area of Doppler signals (DS), echotextural
parameters (echointensity and echovariation) and IVR were determined
by image analysis. The statistical analysis was performed by Bayesian
methods and the results were showed by Bayes Factor (BF10: probability
of alternative hypothesis over null hypothesis), and Credibility intervals
(CrI) of the effect.
Results: The absolute differences of temperature (TD) were clearly
greater (BF10= 19) in the tendinopathy group (patients) than in
controls. Regarding temperature differences between the affected and
healthy limb, strong evidence was found (BF10= 14) for a higher
temperature (effect= 0.53 ºC; 95% CrI=0.15 to 0.95 ºC) and very
strong for reduced IVR compared (BF10= 71) (effect= -0.67; 95% CrI=-
1.10 to -0.25). The differences in area of DS (BF10= 266) and EV
(BF10= 266) were higher in tendinopathy group. TD showed a moderate
positive correlation with VISA-P scores (tau-B=.29; 95% CrI=.04 to .51)
and strong correlation with IVR (r=-.553; 95%CrI=-.75 to -.18).
Conclusion:
Athletes with patellar tendinopathy showed a more
pronounced thermal difference, a larger area of Doppler signal, a lower
IVR and a moderately higher echovariaton than controls. The correlation
between temperature changes and IVR might be related with the
coexistence of degenerative and inflammatory process in PT.
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Citation
Ultrasonic Imaging. Volume 45, Issue 2, pp. 47-61
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Este ítem está sujeto a una licencia Creative Commons. http://creativecommons.org/licenses/by-nc-nd/4.0/