Elbow (2) Flashcards
What is the carrying angle of the elbow in males?
11-14°
What is the carrying angle of the elbow in females?
13-16°
Why might the dominant arm have an increased elbow carrying angle?
Repetitive throwing trauma
What type of joint is the humero-ulnar joint?
Uniaxial hinge joint (only flexion and extension)
What is the required ROM for function of the humeral-ulnar joint?
30-130°
What is the closed pack position of the humeral-ulnar joint?
Full extension and supination
What is the open packed position of the humeral-ulnar joint?
70° of flexion and 10° of supination
What type of joint is the humeral-radial joint?
Uniaxial hinge joint (flexion and extension only)
What type of joint is the proximal radioulnar joint?
Uniaxial pivot joint
What is the closed pack position of the humeral-radial joint and proximal radioulnar joint?
90° of flexion and 5° of supination
What is the open pack position of the humeral-radial joint and proximal radioulnar joint?
Full extension and supination
How much pronation and supination in the radial joints is required for function?
50° in each
What are the muscles that come from the medial epicondyle?
Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris
What are the muscles that come from the lateral epicondyle?
Supinator
Extensor carpi radialis longus and brevis
Extensor carpi ulnaris
Extensor digitorum
Extensor digiti minimi
Where is it possible for elbow pain to come from?
Distal dysfunction (at the wrist)