Kelly Ortho Flashcards
Hand Bones, Proximal distal
o Proximal: scaphoid, lunate, triquetrium, pisiform
o Distal: trapezium, trapezoid, capitate, hamate
- Flexion: scaphoid looks _______
- Extension: scaphoid looks _______
shorter , longer
- Radial Deviation: Scaphoid looks shorter as it does in _______-
flexion
- Ulnar Deviation: Scaphoid looks longer as it does in _______
extension
triquetrum goes __________________ in ulnar deviation
up and under hamate
DISI, lunate tends to be in ______/______ because it is now only attached to the_______
dorsally tilted, extended, triquetrium
VISI, - Lunate tends to be _______bc now just attached to _________
flexed, scaphoid
Thumb pronation occurs with
metacarpal flexion
Dorsal interossei ______, Palm Interossei_______-
Adduction, Abduction
Thenar muscles and their innervation
o Lumbricals (index and middle) Opponens Pollicis—medially rotates o ABductor Pollicis Brevis o Flexor Pollicis Brevis Median Nerve
flexors originate from the_________ and are innervated by the _____ and ______ nervse
Medial epicondyle, median and ulnar nerves
Extensors of the finger originate from the ________ and are innervated by the ______ nerve
lateral epicondyle, radial
fleck of bone around the MP joint is most likely a
volar dislocation
Ulnar and median nerve injury at the wrist (MP and PIP)
MP hyperextension and PIP flexion
Metacarpal fractures pull into ______ due to interossei
Flexion
- ___ can bring all fingers into flexion together but need ______ to flex them individually
FDS, FDL
Forearm rotation: what rotates around what at wrist and elbow
elbow: radial notch of ulna around head of radius
wrist: ulnar notch of radius around head of ulna
tendon insertion that can cause fracture at the thumb
Abductor Pollicus longus
tendon insertion that can cause fracture at the index finger
Extensor carpi radialis longus, flexor carpi radialis
tendon insertion that can cause fracture at the middle finger
extensor carpi radialis brevis
tendon insertion that can cause fracture at the ring finger
extensor carpi ulnaris, flexor carpi ulnaris
fracture of the proximal phalanx can occur with pull of the
lumbrical and interosseous muscles
Dorsal displacement of lateral bands, PIP _____, DIP ______, __________ deformirt
Hyperextension, flexion, Swan Neck
Lateral bands displaced volarly, traingular/central slip extensor tear PIP _____, DIP_____, _______deformity
Flexion, hyperextension, Boutonniere’s