AH 3574 Lecture Notes - Lecture 4: Repetitive Strain Injury, Tendon Sheath, Trigger Finger
Document Summary
Injury caused by repeatedly overusing or causing trauma to a body tissue. Tendon sheath swells/ thickens preventing tendon from sliding freely. Pain on outside of elbow, radiates down forearm. Grasping, cocking wrist, lifting objects aggravates symptoms. Repeated forceful rotation of forearms and bending of wrists. Pain on inside of elbow- to the touch and when working. Inflamed tendon sheath filled with synovial fluid (bump) General term for swollen tendon sheath caused by increased presence of synovial fluid. Pressure on median nerve in wrist commonly caused by inflamed tendon. Passageway is the diameter of index finger. Median nerve, 9 tendons, arteries, lymphatic vessels occupy the tunnel. Damage to blood vessels in the fingers. Reduced finger sensation and ability to grip, extreme pain when blood flow resumes. Cold is an ergo risk factor (environmental) General term for compression of nerves and blood vessels between shoulder and neck. Tendons, ligaments, muscles affected due to poor blood supply caused by compression.
