10/11 - Wrist & Hand Complex Flashcards
(132 cards)
what patients are more appropriate to refer out to OT
more significant injuries/burns that need splinting
what are 3 considerations when thinking ab if pt more appropriate for you or OT
scope of practice
skill set
comfort level
what bones articulate w the distal radius and how
scaphoid and lunate
- radius is concave distally
what bones does the distal ulna articulate with and how
w the distal radius
- ulna is convex distally
triquetrum
what bone is the most fractured carpal and why
scaphoid
- has a narrow central waist
what bone is the most dislocated carpal and why
lunate
- weak volar ligaments
what ligament is the pisiform embedded in
flexor carpi ulnaris (FCU)
what are the proximal row of carpals (radial to ulnar side)
scaphoid
lunate
triquetrum
pisiform
what is the smallest carpal bone
pisiform
what are the distal row of carpals (radial to ulnar side)
trapezium
trapezoid
capitate
hamate
what is a characteristic of the distal row of carpals
stable
what are the 2 main surfaces of the trapezium for articulation
1st CMC joint
volar groove for FCR tendon
what does the trapezoid articulate with
2nd MC
what is the largest and keystone distal carpal
capitate
what are the proximal and distal articulations of the capitate
prox: scaphoid, lunate
distal: trapezoid, hamate, 2-4
what attaches at the hook of hamate
flexor retinaculum
what is the primary motion of the distal radioulnar joint (DRUJ)
radius moving over ulna
what type of joint is the distal radioulnar joint (DRUJ)
uniaxial pivot joint
what is the primary goal of the triangular fibrocartilage complex (TFCC)
provide stability to DRUJ
what are the 5 components making up the TFCC
articular disc
wrist UCL
ECU tendon sheath
meniscus homologue
radioulnar ligaments
norms for wrist flexion
65-90
norms for wrist extension
60-70
norms for radial deviation
15-20
norms for ulnar deviation
30-45