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Upper Extremities Overview ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Upper Extremities • Bones • Ligaments • Muscles • Tendons • Nerves ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Muscles and Tendons ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Model of the Arm ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Nerves ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Different Name, Same Problem • Work-Related Musculoskeletal Disorders (WMSDs) • Repetitive Motion Injury • Cumulative Trauma Disorders ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Upper Extremity WMSDs Tendon Disorders • Tendonitis • Tenosynovitis • Lateral Epicondylitis • Medial Epicondylitis • Ganglion Cysts Nerve Disorders • Nerve entrapments • Carpel Tunnel Syndrome Neurovascular Disorder • Hand Arm Vibration Syndrome • Thoracic Outlet Syndrome ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Tendon Disorders Tenosynovitis • Swelling of the synovial sheath • Pain and swelling Tendonitis • Tendon becomes inflamed • Pain, swelling, weakness, tenderness ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Tendons/Tendon Sheaths ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Tendon Disorders Ganglion Cyst • Synovial sheath swells and holds fluid • Often seen in the wrist as a bump Epicondylitis (lateral and medial) • Unsheathed tendons become irritated • Pain that extends from elbow through forearm ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Tendon Disorders ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Nerve Entrapments Carpel tunnel syndrome • Swelling of the tendons in the wrist area that place pressure on the median nerve • Symptoms include pain, numbness, and tingling of the hand (thumb and first 3 digits) ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Carpal Tunnel FLUXOR CARPI ULNARIS ULNAR ARTERY MEDIAN NERVE TRANSVERSE PALM CARPAL LIGAMENT ULNAR NERVE FLEXOR CARPI RADIALIS S2-5 = SUBLIMIS FLEXOR TENDONS FLEXOR POLLICIS LONGUS P2-5 = PROFUNDUS FLEXOR TENDONS CARPAL BONES RADIAL ARTERY PALMAR BASE LIGAMENTS EXTENSOR TENDONS ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Carpal Tunnel Hotdogs and Cream Puff Tire and Hose ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Neurovascular Disorders Thoracic Outlet Syndrome • Compression of the nerves and blood vessels of the neck and shoulder • Symptoms like CTS extending up the arm Hand Arm Vibration Syndrome • Disorder of the small vessels and nerves of the fingers and hand • Results from vibrating hand tools • Localized blanching at the fingertips with numbness on exposure to cold or vibration ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW Thoracic Outlet Syndrome ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW What does the worker need to know from this presentation? ERGONOMICS :: TRAIN-THE-TRAINER PROGRAM :: UPPER EXTREMITIES OVERVIEW
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