9 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
L2, L3, L4 • Ankle ... Conditions: • Cauda ... such as fibular fracture ... #neurology #sensory ... #motor #leg #physicalexam
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Spinal Cord Injury ... Nerve Root Levels Spinal ... Root Sensory Motor ... #differential #diagnosis ... #Neurology #Spine
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
cord - Spinal Cord ... lesion - Upper motor ... Vertebral burst fracture ... involvement Cauda ... #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
Differential Diagnosis ... : • Spinal cord ... spondylitis • Tethered cord ... distinguishing feature ... #causes #neurology
PV Card: Knee Injuries | Quick Reference Guide - Orthopedic injuries are commonly managed in the
from the 2015-16 ALiEM ... first two were on ankle ... and hindfoot fractures ... Mary Haas #Diagnosis ... #Management #EM
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Spinal Cord Disorders ... Lower roots -> Cauda ... compression by fractured ... Mycoplasma, Influenza, EBV ... #neurology #differential
Incomplete spinal cord syndromes (ISCS)
 • Central - Small Lesion - Suspended sensory deficit, classic cape
Incomplete spinal ... cord syndromes ... Disproportionate motor ... LMN types) • Cauda ... #neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
: • Sensory, motor ... Transverse Myelitis Diagnosis ... Brucellosis - Dengue, EBV ... Transverse #Myelitis #diagnosis ... #management #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Upper Motor Neuron ... Lesions of the spinal ... cord • Inflammatory ... Coxsackie, HIV, CMV, EBV ... #neurology