091014 clinical upper extr injury Flashcards
types of fracture mechanisms
acute fracture : suddent impact of large force exceeding the strength of bone
stress fracture : repeititive submaximal stresses
pathologic: normal forces to diseased bone
fracture hx
acute-sudden blow
chronic-repetitive activity; increase in activity duration, intensity, or frequency
fracture exam
deformities (if bleeding with or w/o a fragment, you should suspect open fracture, which is an orthopedic emergency. NEEDS to be washed out ASAP)
bony point tenderness (just at one spot)
pain w/ loading the bone (indirect loading is very useful-like the axial loading test, bump test, fulcrum test, hop test)
how to treat a fracture?
in general, immobilization
avoidance of NSAIDs (some animal studies show NSAIDs interfere w bony healing through prostaglandins)
fall on an outstreched hand-what are you concerned about?
scaphoid fracture
bones with vulnerable blood supply
scaphoid
talus
femoral head
what blood vessel supplies to scaphoid?
radial artery’s branch called the palmar carpal branch
what can a scaphoid fracture cause in terms of damage?
can disrupt blood supply going to distal ends of scaphoid, as the fracture is usually mid-scaphoid
then you would get necrosis
snuffbox contents
radial nerve
cephalic vein
radial artery
scaphoid bone (deepest)
how would you be able to tell its a scaphoid frac?
if pressure on anatomic snuffbox elicits pain
can have radial nerve paresthesia
what to do for scaphoid frac
need to put on splint b/c these fractures (due to tenuous blood supply) won’t heal very well if you don’t protect them. if it were a sprain, you may just watch and observe, but here, it’s critical to immobilize
can follow w/ MRI to see the blood supply
which artery supplies the femoral head?
medial circumflex femoral artery
with full range of motion, you can rule out
dislocation (w/ acute dislocation, it will be painful and the pt wouldn’t let you move it around much)
when can you have accelerated arthritis at an early age?
with trauma (ex-with repeated dislocations, articular cartilage will be damaged and worn away)
arthritis pt hx
stiffness, especially after rest
worse after prolonged use
exam findings of arthritis
joint line tenderness
mild swelling
deformity
KEY: symptoms with BOTH passive and active mvmt
physical therapy may be good for arthritis b/c
teaches how to use body in right manner
and also, build stronger muscles so can absorb shock better
what can you use for OA?
cortisone (for acute flares, or if someone has special occasion coming up)-can cause chondrocyte cell death though
NSAIDs
surgical replacement
physical therapy
dietary supplements (glucosamine, chondroitin-they make up articular cartilage)
viscosupllement (injections w/ hyaluronic acid, a building block of articular surface)
frozen shoulder is due to
capsulitis (joint capsule thickening, giving rise to inflam and scarring)
cause of capsulitis
idiopathic or post injury
capsulitis hx
limited range of motion (hurts to raise arm overhead)
early stage: painful w/ decreased ROM (freeze phase)
then later, frozen phase: non painful with decreased ROM
then later, thawing phase: non painful with improving ROM (the condition reverts on its own)
capsulitis exam findings
decreased ROM
gradually tightening endpoint
otherwise consistent with underling etiology