Shoulder: Rotator Cuff

Symptomatic Progression of Asymptomatic Rotator Cuff Tears: A Prospective Study of Clinical and Sonographic Variables

Mall NA, Kim HM, Keener JD, et al (Washington Univ School of Med, St Louis, MO; et al) J Bone Joint Surg Am 92:2623-2633, 2010^§

Abstract

Background

The purposes of this study were to identify changes in tear dimensions, shoulder function, and glenohumeral kinematics when an asymptomatic rotator cuff tear becomes painful and to identify characteristics of individuals who develop pain compared with those who remain asymptomatic.

Methods

A cohort of 195 subjects with an asymptomatic rotator cuff tear was prospectively monitored for pain development and examined annually for changes in various parameters such as tear size, fatty degeneration of the rotator cuff muscle, glenohumeral kinematics, and shoulder function. Forty-four subjects were found to have developed new pain, and the parameters before and after pain development were compared. The forty-four subjects were then compared with a group of fifty-five subjects who remained asymptomatic over a two-year period.

Results

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