Biomechanical Factors May Be the Main Contributor to Entheseal Changes in Normal Adults.
We compliment Bakirci, et al for their article1 on the prevalence of ultrasound (US) elementary lesions at mainly lower extremity enthesis sites in 80 (50 female, 30 male) healthy adults (20-80+ yrs) and their analyses of contributory factors. We also compliment the accompanying editorial by Hánová, et al2 The core set of US enthesitis elementary lesions defined by the Outcomes in Rheumatology (OMERACT) group3 were analyzed in the following categories: (1) inflammation (hypoechogenicity and/or increased thickening of the tendon insertion, and power Doppler activity); (2) damage (enthesophytes, calcification, and erosions); and (3) total US scores, all within a 2-mm distance of the bone cortex1.
Masi, AT; Andonian, B; van der Heijde, D
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