Elbow joint and radio-ulnar joints (1).pptx
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This document discusses the elbow joint and radio-ulnar joints. The elbow joint is made up of two articulations: the humero-ulnar and humero-radial joints. It is a synovial, hinged, compound joint between the trochlea of the humerus and the head of the radius and trochlear notch of the ulna. The complexity is increased by the continuity with the superior radio-ulnar joint. The radio-ulnar joints include the superior, middle, and inferior radio-ulnar joints between the head of the radius and ulna. Common injuries and conditions discussed include tennis elbow, golfer's elbow, pulled elbow, and posterior dislocation of the elbow
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elbow joint .ppt
The elbow joint is a synovial hinge joint formed between the trochlea of the humerus above and the trochlear notch of the ulna and head of the radius below. It allows for flexion and extension and is stabilized by the medial and lateral collateral ligaments and surrounding muscles like the brachialis. Common injuries include dislocations, especially posteriorly, and epicondylitis due to overuse of muscles like the extensors controlling forearm pronation and supination.
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- 1. ELBOW JOINT AND RADIO- ULNAR JOINTS DR P K SHARMA
- 2. ELBOW JOINT Two articulations โ 1. Humero-ulnar 2. Humero-radial the complexity of elbow joint is increased by its continuity with superior radio ulnar joint. humero-radial + humero-ulnar = cubital articulation + superior radioulnar
- 3. TYPE OF JOINT - synovial joint - hinge variety - compound - typical
- 4. ARTICULAR SURFACES ๏ข Capitulum and trochlea of the lower end of humerus ๏ข Upper surface of head of radius and trochlear notch of ulna
- 5. LIGAMENTS
- 6. RELATIONS
- 7. BURSAE RELATED TO ELBOW JOINT 1. Subtendinous olecranon bursa 2. Subcutaneous olecranon bursa 3. Bicipitoradial bursa 4. Bursa separating biceps tendon from oblique cord
- 8. STABILITY OF ELBOW JOINT 1. Trochlea of humerus fits into trochlear notch of ulna 2. Ulnar collateral ligament 3. Radial collateral ligament
- 9. BLOOD SUPPLY ๏ข -brachial artery ๏ข -radial artery ๏ข -ulnar artery Anastomosis around elbow joint
- 10. NERVE SUPPLY ๏ข Articular branches from - radial nerve - musculocutaneous nerve - ulnar nerve - median nerve
- 11. CARRYING ANGLE
- 12. APPLIED ๏ข Posterior dislocation of elbow
- 13. ๏ข GOLFERโS ELBOW (Medial epicondylitis)
- 14. TENNIS ELBOW (Lateral epicondylitis)
- 15. PULLED ELBOW
- 17. DISTENSION (EFFUSION)OF ELBOW JOINT
- 18. ๏ข Nerve entrapment - median nerve - ulnar nerve -posterior interosseous nerve
- 19. RADIO ULNAR JOINTS ๏ข Superior radioulnar joint ๏ข Middle (interosseous) radioulnar joint ๏ข Inferior radioulnar joint
- 20. ARTICULAR SURFACES ๏ข Circumference of radial head ๏ข Fibro-osseous ring made by radial notch of ulna and annular ligaments
- 22. BLOOD SUPPLY
- 24. MUSCLES PRODUCING SUPINATION AND PRONATION ๏ข Supination -supinator biceps brachii brachioradialis ๏ข Pronation -pronator teres pronator quadratus brachioradialis
- 25. MULTIPLE CHOICE QUESTIONS 1. Flexors of elbow joint are a)Biceps b) Brachialis c) Brachioradialis d) All of the above
- 26. 2) Elbow joint is a type of a) Hinge joint b) Pivot joint c) Condylar joint d) Ellipsoid joint
- 27. 3) Inferior radioulnar joint is a type of a) Hinge joint b) Pivot joint c) Condylar joint d) Ellipsoid joint
- 28. 4) Olecrenon bursitis is also called as a) Golferโs elbow b) Studentโs elbow c) Tennis elbow d) Pulled elbow elbow
- 29. 5) The triangular relationship between the olecranon and the epicondyles of humerus is lost in a) Supracondylar fracture of humerus b) Studentโs elbow c) Synovitis of elbow d) Posterior dislocation of elbow
- 30. Thank you