Topographic map of pressure sensitivity in patients with painful syndrome of the impact of shoulder

Abstract

Introduction: The impingement syndrome (IS) is characterized by compression of the rotator cuff against the coracoacromial ligament and the anterior third of the acromion, resulting in functional loss and disability. The painful symptoms of impingement syndrome have been studied by means of questionnaires and analyzing the numerical scale intensity, location and modification of functional activity. Recent studies have proposed sensitive topographic maps as an exploratory method to assess the state of awareness in different pain syndromes. However, there are no similar studies in relation to the shoulder SI. Objective: To develop and characterize a topographical map of pain sensitivity to pressure on the shoulder in patients with SI. Materials and methods: 25 patients will be evaluated SI shoulder of both sexes, aged between 18 and 55, and 25 healthy subjects matched by age and gender group SI. The development of the topographic map to the shoulder of subjects with SI will be performed using four anatomical landmarks as reference. A digital pressure algometer be used to measure the pain threshold pressure for a total of 33 points. The visual analog scale (VAS) questionnaires and the Disabilities of the Arm, Shoulder and Hand - (DASH) and Western Ontario Rotator Cuff Index (WORC) will also be used to evaluate pain and function. Expected results and clinical implications of the study: The mapping of pain in individuals with SI shoulder allow a detailed view of soreness in the shoulder, encouraging further studies to assess effects of therapeutic interventions, and studies of central and peripheral sensitization related to the SI shoulder. (AU)