Publications by authors named "P Tetreault"

Chronic pain is a pervasive and debilitating condition with increasing implications for public health, affecting millions of individuals worldwide. Despite its high prevalence, the underlying neural mechanisms and pathophysiology remain only partly understood. Since its introduction 35 years ago, brain diffusion magnetic resonance imaging (MRI) has emerged as a powerful tool to investigate changes in white matter microstructure and connectivity associated with chronic pain.

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Article Synopsis
  • Chronic pain affects millions globally and has significant public health implications, yet its causes and mechanisms are not fully understood.
  • Brain diffusion MRI has been a valuable tool for examining changes in brain white matter connected to chronic pain, with a review of 58 studies providing insights into its neural underpinnings.
  • The review emphasizes the necessity for standardized research methods, discusses the potential of MRI in identifying pain-related biomarkers, and calls for further investigation to better understand chronic pain and develop new treatment options.
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Objective: To investigate the structural alterations, neovascularity, and elasticity of tendons and the relationship between elasticity and the Patient Rated Tennis Elbow Evaluation score after undergoing US-guided fenestration or surgery in patients with chronic lateral elbow tendinopathy.

Methods: Participants from the per-protocol population of a randomized trial conducted between October 2016 and June 2020 were included. The surgery and fenestration groups included 24 (mean age, 50 ± 7 years [standard deviation], 10 men) and 29 (47 ± 8 years, 18 men) participants, respectively.

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Background: Recent studies have stated the relevance of having new parameters to quantify the position and orientation of the scapula with patients standing upright. Although biplanar radiography can provide 3D reconstructions of the scapula and the spine, it is not yet possible to acquire these images with patients in the same position.

Methods: Two pairs of images were acquired, one for the 3D reconstruction of the spine and ribcage and one for the 3D reconstruction of the scapula.

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Introduction: Isolating the effect of an intervention from the natural course and fluctuations of a condition is a challenge in any clinical trial, particularly in the field of pain. Regression to the mean (RTM) may explain some of these observed fluctuations.

Objectives: In this paper, we describe and quantify the natural trajectory of questionnaire scores over time, based on initial scores.

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