Focal Pheripheral Neuropathies Flashcards
femoral nerve injury most common cause
abdominal pr pelvic surgery
inguinal ligament what movement is spared
what movement is affected?
Spared :
Affected:
Sensation: anterior though, medal leg
longest branch of femoral nerve
saphenous nerve
saphenous neuropathy
medial knee pain
abnormal sensation in medial aspect of leg and foot
Saphenous neuropathy - pure sensory syndrome with no medial
what muscle does superior gluteal nerve innervate
Flute med , min and TFL
Commonly injured in conjunction with femoral nerve
obturator
- compression from fracture or hernia
obturator neuropathy injured
Wide bassed gait circumduct
entrapment of sciatic nerve
piriformis
injection
hip trauma
hip replacement
pelvic fracture
hematoma
infection
tumour
radiation
intramuscular injection
peroneal division of sciatic nerve above fibular next innervates
biceps femurs short head
tibial innervated
long head, semi mem , semi tendinousus , adductor magnus ( with obturator)
Tarsal tunnel syndrome
flexor retinaculum compresses tibial nerve , rare
what contents of the tarsal tunnel
tibial nerve
FHL
FD
tibitals posteiro
Tibial N , posterior tibial artery , posterior artery
Tom dick and very nervous Harry
anterior tarsal tunnel syndrome
compression of the terminal deep perineal nerve at the talonavicular joint deep to EHL tendon or superior and extensor retinaculum
Trauma , tight shoes, boney abnormalities, res cavus
Weakness EDB
numbness 1st and 2nd foot
total hip replacement - what is the most likely nerve injured and what would be second most likely
Sciatic - number one
Femoral second
walking slap slap slap sound
what are you worried about?
what gait does she have?
foot drop
- steppage gait
weakness of ankle dorsiflexors and ankle evverter s
common perineal neuropathy at the fibular head
Ddx
L4,5
polyneuropathy
lumbosacral plecopathy
sciatic nerve palsy
MND
intraspinal
9 levels of NS
Cerebrum,
BG
Cerebellum
brainstem
Cord
plexus
motor nerve
NMJ
Muscle
treatment of fibular nerve
avoid further pressure or injury to nerve
+/- AFP
Occasional surgical release
what do you call foot drop if its the LMN cause
spasticity
if you can’t get a motor responds at EDB and what to assess fibular motor response what other muscle can you use?
tibitalis anterior
- also innervated by perineal nerve ( deep
Patient with foot drop it is weakness of TA that accounts for clinical deficit
Common nerve injury in Lower extremity
Fibular nerve injury
morton’s neuroma
irritation of the interdigital nerve at the MTP joint of foot
3rd and 4th digit
test: squeeze and put pressure b/w wedge
Trendelnburg gait - nerve injury
superior gluteal nerve
