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Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
sequestration • Saddle ... Mnemonic: • S - Saddle ... - Emergency Causes ... neoplasms • trauma ... #causes #neurology
Orthopedic Essentials - Spinal Trauma and Spine Classification 
DENIS THREE COLUMN CONCEPT
Anterior column:
Trauma and Spine ... fractures: Don't cause ... or neurologic deficit ... injury 3 Cauda equina ... #Orthopedics #diagnosis
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
Causes of spinal ... other forms of trauma ... involvement Cauda Equina ... #differential #diagnosis ... #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Conditions: • Cauda Equina ... pain, sciatica, saddle ... Commonly caused ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Cauda Equina Syndrome ... Causes: • Large ... • Trauma or epidural ... Incontinence • Saddle ... pathophysiology #diagnosis
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Weakness • Spinal ... Transverse Myelitis, Trauma ... #differential #diagnosis ... #neurology
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
- Differential Diagnosis ... The evaluation should ... include a: • Neurologic ... tympanic membrane • Neurologic ... #Differential #Diagnosis
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... /constipation, hyponatremia ... of intrathecal spinal ... roots and cauda equina ... management #treatment #neurology
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Incidence: 1 to 2 cases ... Meningococcal), surgery, trauma ... axonal • MRI - Spinal ... roots and cauda equina ... #management #neurology