wrist fractures Flashcards
distal radius fractures commonly caused by what MOI
FOOSH
at the distal radius the bone is pourus because
cancellous bone is located here (vascualr)
Colle’s fx is what type of displacement of the distal radius fragments
dorsal displacement
the dorsal displacement in colle’s fx is caused by what type of force and from what bones?
dorsal force from scaphoid and lunate
MOI for colle’s fx
FOOSH
Smith’s fx is what type of displacement to the distal radius fragments
volar displacement
Smith’s fx MOI
flexion injury to radius
Chauffer’s fx is the
intra-artticular fx of the radial styloid process
MOI of chauffer’s fx
direct blow to back of wrist
FOOSH fractures with age
4-10 torus (bulge)
11-16 salter harris (type 2)
17-40 scaphoid fracture
over 40 Colle’s fx
distal ulna fx usually occur with __ and rarely occur when
radius fx and rarely occur in isloation
if ulna fx is left untreated what can occur?
ulnar side wrist pain
DRUJ instability
loss of arm rotation
ulnar varience is what
the relative length of articulating surfaces
ulanr +
ulna extends longer than radius
ulna -
ulna is shorter than radius
neutral in ulnar variance
ulna and radius same length
ulnar varience increases when
pronated and gripping
ulnar varience decreases when
supination
with ulnar + varience there is an increased risk of
TFCC injury due to ulnocarpal impingement
problem with negative ulnar variance
painful pseudoarthrosis
pain with supination and pronation
wrist widgit splint used for what injuries
TFCC injury
ulnar pain
WB strain
the TFCC bridges the gap between the
distal ulna and proximal carpals
TFCC cushions which joint and bt which bones
cushions the ulnocapral joint and between the ulna and triquetrium
during FA rotation the TFCC stablizes which joint
DRUJ
