1 / 15

Elbow: Anatomy

Elbow: Anatomy. Bony Anatomy. Radius Ulna Humerus – 2 condyles Lateral – capitulum Articulates with the radius Medial – trochlea Articulates with humerous. Ligaments. Ulnar collateral Medial epicondyle to ulnar trochlear notch Strong anterior band, weaker transverse & middle

teenie
Télécharger la présentation

Elbow: Anatomy

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Elbow: Anatomy

  2. Bony Anatomy • Radius • Ulna • Humerus – 2 condyles • Lateral – capitulum • Articulates with the radius • Medial – trochlea • Articulates with humerous

  3. Ligaments • Ulnar collateral • Medial epicondyle to ulnar trochlear notch • Strong anterior band, weaker transverse & middle • Gives medial support • Radial collateral • Lateral epicondyle to side of annular ligament • Does not attach to radius • Gives lateral support • Annular • Holds radius to ulna and humerus • Allows rotation of radius (supination and flexion) • Gives lateral support

  4. Muscles • Flexion • Biceps brachii, brachial, brachioradialis • Extension • Triceps brachii • Pronation • Pronator quadratus, pronator teres • Supination • Biceps brachii, supinator muscle

  5. Muscles • Biceps brachii • Insertion • Tuberosity of the radius • Movement • Flexes elbow, supinates forearm • Brachialis • Insertion • Coronoid process of ulna • Movement • Flexes elbow • Brachioradialis • Insertion • Styloid process of the raidus • Movement • Flexes elbow • Triceps brachii • Insertion • Olecranon process of ulna • Movement • Extension

  6. Muscles • Supinator • Insertion • Proximal end of the lateral surface of the shaft of the radius • Movement • Supinates the elbow • Pronator teres • Insertion • Middle of the lateral surface of the shaft of the radius • Movement • Pronates elbow • Anconeus • Insertion • Lateral surface of the olecranon process of the ulna • Movement • Extends elbow

  7. Joints • Humeroradial • Articulation of lateral distal humerus and proximal radius • Radioulnar • Articulation between radial notich of the proximal lateral aspect of ulna, the radial head and capitulum of distal humerus • Important in supination andpronation • Humeroulnar • Articulation between distal humerus medially and proximal ulna

  8. Nerves • Median • Passes deep in the cubital fossa medial to the biceps and brachialis • Radial • Lateral to biceps and brachialis • Ulnar • Courses posteriorly in groove between the medial epicondyle and olecranon process • Musclocutaneous • Passes through cubital fossa, supplies the anterior forearm and thenar muscles

  9. Elbow Anatomy • MISC • Medial & lat. Condyles with the olecranon process form a straight line when arm is straight • Forms a triangle when arm is bent • Posterolateral triangle – radial head, lat. Condyle, olecronon process • Good place for aspiration

  10. Elbow Anatomy • Carrying angle • 5-15 degrees female 5-10 degrees male • This angle will increase in athletes that have participated in throwing sports for a long time, or the angle could increase if there is a fx • ROM • Flexion – 145 degrees • Extension – 0 / -5 degrees • Pronation & supination – 90 degrees

  11. Flexion and Extension Pronation and Supination

More Related