Arm Flashcards
(18 cards)
Radial head subluxation
- Nursemaid’s Elbow
- Mechanism: usually a pull on the hand by an adult
- Annular ligament stretches and radial head subluxates
Elbow dislocation
- Ass. w/ fractures
- “Terrible Triad” = elbow dx w/ radial head and coronoid fractures
- Collateral ligaments and anterior capsule are typically all torn
Monteggia fracture
- Proximal ulna fracture
- Shortening forces result in radial head dislocation
Galeazzi fracture
- Distal 1/3 radial shaft fracture
- Shortening forces result in distal radioulnar dislocation
Borders of Carpal Tunnel
Roof: Transverse carpal ligament
Floor: Central carpal bones
Medial wall: pisiform and hamate
Lateral wall: trapezium and scaphoid
Contents of Carpal Tunnel
Tendons: FDS (4), FDP (4), FPL
Nerve: median
Borders of Ulnar Tunnel
Floor: transverse carpal ligament
Roof: volar carpal ligament
Medial wall: pisiform
Lateral wall: hook of hamate
Contents of Ulnar Tunnel
Ulnar nerve
Ulnar artery
How many extensor compartments of forearm?
6
Extensor compartment 1
- Abductor pollicis longus
- Extensor pollicis brevis
Extensor compartment 2
- Extensor carpi radialis brevis
- Extensor carpi radialis longus
Extensor compartment 3
Extensor pollicis longus
Extensor compartment 4
- Extensor digitorum
- Extensor indicis
Extensor compartment 5
Extensor digiti minimi
Extensor compartment 6
Extensor carpi ulnaris
Anterior compartment of arm
Superficial: PT, FCR, PL, PCU
Middle: FDS
Deep: FDP, FPL, PQ
Posterior compartment of arm
Superficial: Anconeus, EDC, EDM, ECU
Deep: Supinator, APL, EPB, EPL, EIP
Mobile Wad compartment of arm
Brachioradialis, ECRL, ECRB
