Associação entre discinesias escapulares e lesões no ombro: revisão da literatura

Abstract

The scapula is anatomically and biomechanically involved with the shoulder function, and its motions should harmonically occur in coordination with the humerus, so that its instantaneous center of rotation can balanced between the scapulothoracic and glenohumeral joints. Changes in scapular position and movements are called scapular dyskinesis. It is known that repeated movements and maintained postures during daily activities lead to dysfunctions, which result in pathological conditions and affect the musculoskeletal and nervous tissues. In the presence of scapular dyskinesis, changes of the scapular-thoracic motions and high number of injuries involving the shoulder complex occur. Scapular dyskninesis is caused by disruptions of the activation patterns of the scapular stabilizing muscles, postural changes, increased demands for scapular stabilization, changes in flexibility around the shoulder complex, glenohumeral pathologies, or muscular inhibition responses to painful stimulations. Because it is a non-specific condition with various causes, the dyskinesis condition becomes difficult to be diagnosed. However, the understanding of the dyskinesia is of paramount importance for more accurate interventions, which should be based upon the cause of the problems and not just the symptoms.