24 results
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
> Anterior spinal ... and #Acute #SpinalCord ... #diagnosis #pathophysiology ... symptoms #msk #orthopedics ... #neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Neuromuscular Weakness ... Tumor • Motor Nerves ... Guillain-Barre syndrome ... #Causes #differential ... #diagnosis #neurology
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
Palsy - Oculomotor Nerve ... comparison to Horner's syndrome ... Extraocular Muscle Weakness ... Palsy #Oculomotor #Nerve ... #Cranial #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... • Acute stroke syndromes ... Paraneoplastic syndrome ... #Differential # ... Diagnosis #neurology
Incomplete spinal cord syndromes (ISCS)
 • Central - Small Lesion - Suspended sensory deficit, classic cape
Incomplete spinal cord syndromes ... level of lesion (anterior ... ISCS #Incomplete #spinalcord ... #syndromes #diagnosis ... #neurology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Pathophysiology ... 30%) • Facial Nerve ... • Pain: Due to nerve ... intrathecal spinal nerve ... management #treatment #neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... tracts in the anterior ... unilateral) #SpinalCord ... #lesions #differential ... #diagnosis #neurology
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
of Hemiplegia - Differential ... Consciousness • Cranial Nerve ... Brown-Sequard Syndrome ... #Hemiplegia #Neurology ... #Differential #
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
Cord Injury by Nerve ... Abdominal Reflex L2 Anterior ... Sphincter None #SpinalCord ... NerveRoots #Levels #differential ... #diagnosis #Neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
hand" ± Horner Syndrome ... Carpal Tunnel Syndrome ... Anterior Shoulder ... anesthesia and deltoid weakness ... Myotomes #diagnosis #neurology