EXAM 3: brachial plexus Flashcards
median nerve distal branch is most well represented nerve of the brachial plexus T or F
True
peripheral nerves regrow at what rate
1 inch per month
*schwann cells allow peripheral nerve to regenerate
motor endplates: are these important?
nerve talks to muscle: go away without innervation
long bone growth during growth spurts cause problems like
contractures
If glenoid is not doing well, you are gonna lose
passive motion like ER
history: what do you want to know
- pregnancy
- delivery
- gestational age and weight (bigger = risk)
- fx
- breathing/feeding
- arm presentation
- timeline
for baby clavicles, fractures heal in _ days
immobilize for _ days
21 days
immob: 14 days
see kids at 3-4 week mark
for baby humeral fx, mostly heal in _ weeks
immobilize for _ weeks
heal in 6 weeks
immob for 4 weeks
If C7 is present, they will have
elbow extension
wrist extension
C 5-T1 + horners
shoulder ER
supination
drooping eyelid
C5, 6, 7 may skip what milestone?
crawling among other stuff
how to test sensation in under 3 years?
If they pause
attention and look
or pain response
*pinch in median, radial, ulnar distribution
If shoulder is internally rotated due to BP injury, what can happen at the GH joint?
developmental dislocation posteriorly
If you have an avulsion injury, nerve root pulling out of spinal cord, what will you see?
CSF fill in, bright white on MRI
will not get better
If child is younger than 8-9 months old and not responding to conservative treatment? What can you do?
botox to IRs, cast for 6 weeks in ER
go back into HERO strap
9 months is the last stop for decision making: why
*MOTOR END PLATES
*mm are degenerating at 9 months.
what age do majority of kids dislocate?
3-6 months
60-80% of infants with
motor deficits beyond 3 –
6 mos. develop dysplasia
* 30% of infants dislocate in
the first year of life
