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Lesson Objectives

Lesson Objectives. Reviewing the anatomy of the Elbow Bones & Joints Ligaments, tendons muscles Movements of the elbow/forearm. Elbow Anatomy. Bones – Humerus , Ulna & Radius Humero-ulnar Joint: Hinge (sometimes called “Limited Ball & Socket”) Motions – Flexion & Extension

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Lesson Objectives

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  1. Lesson Objectives • Reviewing the anatomy of the Elbow • Bones & Joints • Ligaments, tendons muscles • Movements of the elbow/forearm

  2. Elbow Anatomy • Bones – Humerus, Ulna & Radius • Humero-ulnar Joint: • Hinge (sometimes called “Limited Ball & Socket”) • Motions – Flexion & Extension • Humero-Radial Joint: • Hinge • Motions – Flexion & Extension

  3. Anatomy cont’d • Proximal (& Distal) Radio-ulnar Joint: • Pivot • Motions – pronation & supination • Olecranon Process - Point of the Elbow (part of the ulna) where triceps attaches • Radial Tuberosity – bump on the radius where biceps tendon attaches

  4. Elbow Anatomy (cont’d) • Trochlea – distal & medial portion of the articular surface of the humerus • Capitulum - distal & lateral portion of the articular surface of the humerus • Epicondyles – Medial & Lateral prominences of the humerus • Major Ligaments: • Ulnar Collateral, Radial Collateral, Annular & Capsular

  5. Ligaments • Annular • ligament that wraps horizontally around the head of the radius & holds the proximal radio-ulnar joint together • Radial Collateral (RCL) • connects radius and humerus • lateral • Ulnar Collateral (UCL) • connects ulna and humerus • medial

  6. Elbow & Forearm Joints Humeroradial joint Olecranon fossa Humeroulnar joint Bicipital Groove Proximal Radioulnar joint

  7. Elbow & Forearm Joints

  8. FOREARM JOINTS

  9. Muscles &Motions: • Flexion – Biceps, Brachioradialis, Brachialis • Extension -Triceps & Anconeus • Pronation – Pronator Teres, Pronator Quadratus • Supination – Biceps, Supinator

  10. Elbow Injuries • Most occur from overuse • Racket (tennis) and Throwing (baseball/softball) sports have a high incidence of injuries

  11. Lateral Epicondylitis – “Tennis Elbow” • Occurs from overuse • Injury to the tendon connecting extensor muscles to lateral epicondyle

  12. Medial Epicondylitis – “Little League Elbow” / “Golfer’s Elbow”

  13. Olecranon Bursitis“Student’s Elbow” • Cause: hard blow or repeated minor injuries • Inflammation of the bursa - bursitis

  14. Avulsion Fx • Medial Epicondyle most common

  15. Elbow Dislocation • Cause: most common is a fall on an outstretched arm • Ulna (olecranon process) dislocates from the humerus

  16. Ulnar Nerve Contusion • AKA: hitting your funny bone • Cause: knocking your ulna against a hard surface • Ulnar Nerve runs along the medial surface of the elbow • Can become entrapped due to: • Direct trauma • Repetitive strain • Progressive compression (Cubital Tunnel Syndrome)

  17. UCL Constructive Surgery • Ulnar Collateral Ligament (UCL) • AKA: Tommy John Surgery • Surgery to repair & replace the UCL • Over time tiny and large tears occur; eventually rupturing • Named after famous LA Dodgers Pitcher Tommy John

  18. Tommy John Surgery • Brief Description • Not just baseball players • 30 for 30: Tommy & Frank

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