What type of joint is an elbow joint?
Synovial uniaxial hinge joint
What movements are available at the elbow joint?
- Flexion
- Extension
What movements are available at the radioulnar joint?
- Supination
- Pronation
How do men and women’s carrying angle differentiate at the elbow?
Men = 10-15 degrees
Women = 20-25 degrees
What is the purpose of the carrying angle of the elbow?
Permits the forearm to clear the hips in swinging movements during walking and is important when carrying objects.
What is the expected ROM at the elbow during active and passive flexion?
Active = 145 degrees
Passive = 160 degrees
What is the expected ROM at the elbow during extension?
0 degrees
Does stability of the elbow increase or decrease with flexion?
Increase
What are the innervations of the elbow joint?
Anteriorly:
- Musculocutaneous nerve
- Medial nerve
- Radial nerve
Posteriorly:
- Ulnar nerve
- Radial nerve
What movement occurs at the radioulnar joint?
- Pronation
- Supination
(rotation of the lower end of the radius around the head of the ulna)
Why is the inferior radioulnar joint stable?
- Articular disk
- Interosseous membrane
- Pronator Quadratus
