Elbow Flashcards
1
Q
What are the muscles that flex the elbow joint?
A
- Biceps
- Brachialis
- Brachioradialis
- Pronator teres
- Flexor carpi radialis
2
Q
What are the structures passing in the spiral groove?
A
- Radial nerve
- Profunda brachii vessels
3
Q
What is the clinical picture of radial nerve injury at the spiral groove?
A
- Paralysis of wrist extensors → wrist drop
- Paralysis of finger extensors → finger drop
- Loss of sensation in the 1st web space
4
Q
What is the identified x-ray?
A
Supracondylar fracture of the humerus
(seen more commonly in children)
5
Q
What are the associated injuries with supracondylar fracture of the humerus?
A
- Brachial artery injury (absent distal pulse)
- Anterior interosseus nerve injury (unable to flex the interphalangeal joint of his thumb and the distal interphalangeal joint of his index finger)
- Ulnar nerve injury (claw hand)
- Radial nerve injury (wrist drop and finger drop)
