Flashcards in Wrist (RITA) Deck (33):
What is the name of fx that occurs 1.5" proximal to distal end of radius?
distal radius fx
CRPS is also known as
reflex sympathetic dystrophy
Post colles fx, what complication is most common?
malignment/malunion of fragments resulting in joint incongruity
With a smith fx, what type of complication is most common?
median nerve injury
What factors influence fx management?
mechanism of injury
relationship of fragments
stable fx - cast immobilization
Goals with colles fx?
maximize pain-free ROM
With colles fx, if radius is dorsally angulated, what motions are limited and why?
limited flex/ext because of impaired glide of proximal row of carpals on radius
The radius should be slightly _____ tilted.
If the radius is tilted _____, it impairs ROM.
What is normal and functional wrist flex/ext ROM?
What is normal and functional wrist RD/UD ROM?
What is normal and functional wrist Sup/Pron ROM?
What signifies that fx is stable enough to withstand AROm and case can be removed.
What percept of all carpal fxs are scaphoid fxs?
What percent of scaphoid fxs occur in the middle of the bone?
Fx to which pole of the scaphoid heals faster?
proximal pole heals slower than distal
What are common clinical findings with scaphoid fractures?
radiologic evidence not always common early on
hx of high force hyperextension injury
pain in snuff box region
decreased pinch grip strength
Healing of scaphoid depends on
coaptation of fragments
adequate blood supply
early dx and adequate rx (immobilization from injury until union)
For fx at proximal pole of scaphoid, what is healing time?
up to 30 weeks
For fx at middle 1/3 of scaphoid, what is healing time?
For fx at distal 1/3 of scaphoid, what is healing time?
What intrinsic complications can contribute to non-union of scaphoid fxs?
displacement of fx >1mm
instability b/w prox and distal carpal rows
What extrinsic complications can contribute to non-union of scaphoid fxs?
Management considerations for scaphoid fxs?
beware of extremes of ROM
beware of excessive loading during ADL/sports
Lunate fxs mostly affect ____ pole of the bone.
Common complication of lunate fx?
What does kienbock's disease result in?
AVN of the lunate
What are predisposing factors to kienbocks?
pattern of intrinsic blood supply
negative ulnar variance
Age incidence of lunate fxs?
Gender incidence of lunate fxs?
Lunate avascular necrosis is treated with:
What are some surgical interventions for lunate avascular necrosis?
revasculation with pronator flap
carpal fusion procedures