Motion of the shoulder complex in individuals with isolated acromioclavicular osteoarthritis and associated with rotator cuff dysfunction: Part 1-Three-dimensional shoulder kinematics

Author(s)

Sousa, Catarina de Oliveira ^{[1, 2]} ; Camargo, Paula Rezende ^[1] ; Ribeiro, Ivana Leao ^[1] ; de Menezes Reiff, Rodrigo Bezerra ^[3] ; Michener, Lori Ann ^[4] ; Salvini, Tania Fatima ^[1]

Affiliation

^[1] Univ Fed Sao Carlos, Dept Phys Therapy, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Fed Rio Grande do Norte, Dept Phys Therapy, BR-59072970 Natal, RN - Brazil

^[3] Univ Fed Sao Carlos, Dept Med, BR-13565905 Sao Carlos, SP - Brazil

^[4] Virginia Commonwealth Univ, Dept Phys Therapy, Richmond, VA - USA

• Document type: Journal article
• Source: JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY; v. 24, n. 4, p. 520-530, AUG 2014.
• Web of Science Citations: 5

Abstract

This study described the three-dimensional shoulder motion during the arm elevation in individuals with isolated acromioclavicular osteoarthritis (ACO) and ACO associated with rotator cuff disease (RCD), as compared to controls. Seventy-four participants (ACO = 23, ACO + RCD = 25, Controls = 26) took part of this study. Disability was assessed with the DASH, three-dimensional kinematics were collected during arm elevation in the sagittal and scapular planes, and pain was assessed with the 11-point numeric pain rating scale. For each kinematic variable and demographic variables, separate linear mixed-model 2-way ANOVAs were performed to compare groups. Both ACO groups had higher DASH and pain scores. At the scapulothoracic joint, the isolated ACO group had greater internal rotation than control, and the ACO + RCD group had greater upward rotation than both other groups. At the sternoclavicular joint, both groups with ACO had less retraction, and the isolated ACO group had less elevation and posterior rotation. At the acromioclavicular joint, the isolated ACO group had greater upward rotation, and both ACO groups had greater posterior tilting. Patients with ACO had altered shoulder kinematics, which may represent compensatory responses to reduce pain and facilitate arm motion during arm elevation and lowering. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 11/14642-9 - 3D kinematic and eletromyographic evaluation during elevation of the arm in subjects with isolated acromioclavicular osteoarthritis and associated with rotator cuff dysfunction
• Grantee: Catarina de Oliveira Sousa
• Support Opportunities: Scholarships in Brazil - Doctorate