7 results
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 ... None T7-T12 See Dermatomes ... L2 Anterior Medial ... #differential #diagnosis ... #Neurology #Spine
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
, T1 (median) Reflexes ... - C7, C8 • Biceps ... spared in this injury ... Anterior Shoulder ... #neurology #sensory
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Cord Syndrome -> Anterior ... bladder and rectal reflex ... #Syndromes #diagnosis ... signs #symptoms #msk ... #orthopedics #neurology
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
Findings Compression/injury ... rarely follow dermatomal ... gait, strength, reflexes ... Straight Leg Raise Test ... ligament (near anterior
Relative Afferent Pupillary Defect

This maneuver of intermittent light stimulus is called the alternating light test or
the pupillary reflex ... very sensitive diagnostic ... afferent pathway injury ... Pupillary #Defect #Neurology ... #Clinical #Video
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 ... region (S2-S4 dermatomes ... • Provocative Tests ... absent anal wink test ... #causes #neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
Presentation: Injury ... Spasticity - Reflexes ... bouts of HTN Diagnostic ... negative, MOG-IgG test ... #management #neurology