A Pilot Study Comparing Intentional Shoulder Kinematics of Patients With Symptomatic Small-Size Supraspinatus Full-Thickness Tears With Healthy Controls.

Introduction: The prevailing view is that painful shoulders exhibit abnormal kinematics. This study explores the impact of symptomatic small-size supraspinatus tendon full-thickness tears on the three-dimensional (3D) kinematics of intentional, effortless shoulder movements. The hypothesis suggests that mechanical force buildup patterns, as indicated by motion jerk, will differ between healthy individuals and patients with symptomatic rotator cuff tendinopathy.