AANEM Self-Study Curriculum Part 2 Flashcards
Neuropraxia
axonal continuity maintained. reversible. no wallerian degen. CB resolves in 12 weeks.
Neurotmesis sunderland grade 5
nerve and and nerve sheath injured never completely recover. epineurium injured
Axonotmesis (sunderland grade 2-4)
axon injury but connective tissue maintained with division of fascicles +/- endonerium +/- perineruium 1mm/day growth (one inch/month)
Radiculopathy Denervation timeline
paraspinal 10 days, 14 days proximal, 21 days Distal, 35 days foot
L4 Radiculopathy Muscles
adductor longus, rectus femoris, vastus lateralis/medialis, Tibialis Anterior
L5 Muscles
gluteus medius, TFL, semi-tendinosus/membranosus, FDL, TA, PT, EHL peroneus longus
S1 Muscles
glu max, BF-SH/LH, medial gastroc, AH
C5 Muscles (not specific but supportive)
rhomboids, supra/infraspinatus, deltoid, biceps brachii, brachioradialis
C6 Muscles
(PT, FCR, BR, triceps, supra/infrapinatus, Deltoid, ECR)
C7 Muscles
triceps ( PT, FCR, ECR, ED, ECU)
C8
FDI, EIP, FPL, APB (T1), FCU, FDP, ADM,
Upper trunk
C5-6 > C6-C7 motor . Sensory Lateral arm/forearm/hand and thumb. DTR decreased in Biceps/BR
Upper trunk NCS
LABC/Med-D1 100%
Lower Trunk NCS
Uln D5/ MABC
Lateral Cord v Medial Trunk
Med D2/D3 if S-radial present then medial trunk