Supraspinatus tendon micromorphology in individuals with subacromial pain syndrome

Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists
Federico PozziLori A Michener

Abstract

Cross-sectional cohort. Tendon collagen organization can be estimated by peak spatial frequency radius (PSFR) on ultrasound images. Characterizing PSFR can define the contribution of collagen disruption to shoulder symptoms. The purpose of this was to characterize the (1) supraspinatus tendon PSFR in participants with subacromial pain syndrome (SPS) and healthy controls; (2) PSFR between participants grouped on a tendon visual quality score; and (3) relationship between PSFR with patient-reported pain, function, and shoulder strength. Participants with SPS (n = 20) and age, sex, and arm-dominance-matched healthy controls (n = 20) completed strength testing in scaption and external rotation, and patient-reported pain, and functional outcomes. Supraspinatus tendon ultrasound images were acquired, and PSFR was calculated for a region of interest 15 mm medial to the supraspinatus footprint. PSFR was compared between groups using an independent t-test and an analysis of variance to compare between 3 groups for visually qualitatively rated tendon abnormalities. Relationships between PSFR with pain, function, and strength were assessed using Pearson correlation coefficient. Supraspinatus tendon PSFR was not different between groups (P...Continue Reading

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Citations

Feb 17, 2021·The American Journal of Sports Medicine·Stephen J ThomasRyan W Paul
Oct 20, 2020·Journal of Shoulder and Elbow Surgery·Angela TateStephen J Thomas

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