Elbow joint Flashcards
What is the note carrying angle
Angle between ulna and humerus
170 degrees but is larger (lower angle ) in females
Origin of ulnar collateral ligament
Medial epicondyle
Attachment of ulnar collateral ligament
Coranoid process and olecrannon of ulna
3 bands of ulnar collateral ligament
Anterior (strongest) - cord
Posterior - fan
Oblique - deepens socket for trochlea
What side of the joint is the radial collateral ligament on
Lateral side
From lateral epicondyle and blends with anular ligament of radius
Where is the intratendinous bursae
Within tendon of triceps brachii
Where is the subtendinous olecrannon bursa
What does it do
Between olecrannon and the tendon of the triceps brachii
Reduce friction during Flexion and extension
Where is the subcutaneous olecrannon bursa
Between olecrannon and overlying CT
What is subcutaneous bursitis
Subcutaneous olecranon bursa becomes infected (it’s very superficial) and inflamed
Can also be caused by repeated friction and pressure on the bursa
What is subtendinous bursitis
Inflammation of subtendinous olecranon bursa caused by repeated extension and flexion of forearm
What can be damaged in elbow dislocations
Brachial artery,
Median and ulnar nerves
Ulnar collateral ligament is usually torn
Where does radial nerve pass at the elbow
Anterior to lateral epicondyle
Where does the ulnar nerve pass at the elbow
Posterior to medial epicondyle
Articulations at elbow joint
Trochlear notch of ulna and trochlea of humerus,
Head of radius and capitulum of humerus
Where is the capsule weak
Anteriorly and posteriorly
