Rotator Cuff: Visible Body Fast Facts

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The rotator cuff is a group of muscles and tendons that surround the shoulder joint. These muscles keep the top of the upper arm in the shoulder socket by forming a cuff that not only holds the arm in place but helps it move in various directions. Gradual degeneration due to repetitive overhead motion or a sudden traumatic event can tear one of the muscles or tendons of the rotator cuff. Symptoms of this injury include pain, decreased range of motion in the shoulder, and muscle weakness.

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