Wrist and Ankle 1 Quiz Flashcards
wrist extension range
60-85
radial deviation range
15-21
ulnar deviation range
20-45
radiocarpal joint structure
distal convex on proximal concave
proximal RC joint
volar and ulnar angles?
volar 11
ulnar 23
where is 80 % of the load compression in the wrist
scaphoid
20% of compression in wrist is where
TFCC
pisiform is part of which row
proximal
what type of bone is pisiform and why
sesamoid- increases MA of flexor carpi ulnaris
length of ulna in relation to the radius
ulnar variance
long ulna
less ulnar deviation
less space
ulnar positive variance
short ulna
more ulnar deviation
more space but thick b/c its filled with fibrocartilage
ulnar negative variance
FOOSH decreases what and to how much
angle of inclination
changes from 23 to 10
proximal carpal row
scaphoid
lunate
triquetrum
pisiform
proximal carpal row favors
flexion and ulnar deviation
distal carpal row
from thumb to pinky
trapezium
trapezoid
capitate
hamate
distal midcarpal row prefers what?
extension and radial deviation
causes dorsal subluxation of scaphoid
increases compression
radioscapholunate ligament injury
lunate and scaphoid fall into flexion
lunotriquetral ligament injury
ideal grip strength position
35 degrees extension
7 degrees ulnar deviation
wrist flexion range
65-85