injuries poisoning
Rotator Cuff Injury Subacromial Bursitis
Symptoms and Signs of Rotator Cuff Injury
Subacromial bursitis, rotator cuff tendinitis, and partial rotator cuff tears cause shoulder pain, especially when the arm is moved overhead. The pain usually is worse between 60°and 120°(painful arc of motion) of shoulder abduction or flexion and is usually minimal or absent at<60°or>120°. The pain may be described as a dull ache that is poorly localized. Complete rotator cuff tears result in acute pain and weakness of the shoulder. In larger tears of the rotator cuff, weakness of external rotation is particularly apparent. 