Tuesday, January 18, 2005. Tweet. Grapefruit juice can be dangerous for people on certain medications, nurse researchers remind doctors, nurses, and everyone who takes medicine and enjoys grapefruit juice, in a paper in the American Journal of Nursing, a journal of the American Nurses Association.
Tendonitis is irritation or inflammation of a tendon. Tendonitis is usually caused from repetitive motion such as sports type injuries. In an auto accident injury this would be caused from sudden or direct force applied to the area of concern.
What causes shoulder tendonitis? The rotator cuff consists of four separate muscles, each of which has a tendon that attaches to different parts of the shoulder blade. These tendons form a cuff around the head of the humerus, and the muscles of this group work together to control and stabilize the shoulder. As a ball-and-socket joint, the rotator cuff helps secure the ball portion of the shoulder as the arm moves and rotates within the socket. Shoulder tendonitis occurs when these tendons are injured and become inflamed as a result. The most common cause of shoulder tendonitis is overuse of the shoulder. This means the tendons in the rotator cuff are overworked beyond what they can handle, and over time they eventually become damaged.