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
Medial Cord Vs Lower Trunk
EIP/EPB = PROXIMAL to medial Cord otherwise both ulnar d5/MABC and D3.
T1 Muscles
APB Interossei
C5 Sensory
lateral upper arm
C6 sensory
lateral forearm, hand and D1/2
C7 sensory
center of anterior forearm and third digit
C8 sensory
medial hand and D4/D5
T1 Sensory
medial forearm
L2 Muscles/Sensory
iliopsoas adductor longus | anterior thigh
L3 Muscles/Sensory
ilipsoas, adl, quads | medial thigh and knee
L4 Muscles/Sensory
quads, adl, TA | medial lower leg
L5 Muscles/Sensory
Glut Med, Medial hamstrings (ST/SM) TA, ED, PL, TP , FDL medial/dorsal foot lateral lower leg
S1 Muscles/Sensory
glut max, lateral hamstrings (BF-SH/LH), gastoc, PL ED PT | plantar foot and lateral foot posterior lateral leg
Lumbar plexus Muscles/Sensory
iliopsoas, quads, adl | anterior medial and lateral thigh, medial lower leg
Radial nerve PIN Muscles/Sensory
EDC/EIP | No sensory
Radial nerve at spiral groove
BR, ECR, EDC, EIP | dorsal hand and first three digits
Radial at axilla Muscles/Sensory
add triceps/anconeus | dorsal upper arm forearm and lateral hand
Median AIN Muscles/Sensory
FPL/FDP1,2 | None
Median at the elbow Muscles/Sensory
PT/FCR/FPL/FDP1-2/APB | palmar hand and first three digits
Fibular deep branch Muscles/Sensory
TA/ED first dorsal webspace