Lesions of the spinal cord Flashcards
Monoplegia
Paralysis of one limb
Diplegia
Paralysis of both upper or lower limbs
Paraplegia
Paralysis of both lower limbs
Hemiplegia
Paralysis of one side of body
Quadriplegia
Paralysis of all four limbs
Spinal shock
Loss of sensation accompanied with initial arreflexia, which recovers. Makes a UMN lesion look like a LMN lesion.
Syringomyelia
Fluid filled cavitation in the center of the cord. Mostly in cervical cord. Loss of pain and temp, weakness of arm muscles with hyporeflexia. Can cause spasticity in legs.
Syringobulbia
When syringomyelia goes into brainstem. Can present as vocal cord paralysis, nystagmus, tongue weakness.
Transverse myelopathy
Complete spinal cord transection. Motor, sensory, autonomics below lesion disturbed.
Brown Sequard Syndrome
Hemisection of spinal cord. Contralateral pain/temp loss, ipsilateral loss of touch,vibration. Ipsilateral weakness.
Central cord syndrome
Cervical lesion that may be due to hyperextension of the neck. Motor weakness present in upper and lower limbs, patient more likely to lose pain/temp.
Conus Syndrome
Bilateral saddle anesthesia, unirary retention/incontinence. Bulbocavernosus and anal reflexes are absent. Muscle strength largely preserved.
Cauda Equina Syndrome
Severe lower back pain. Asymmetric leg weakness, sparing of bowel/bladder.
Degenerated vs herniated disk.
Degenerated has less water content. Herniated means ruptured into canal.
How to treat a disk herniation
Laminectomy, spinal fusion, microdiskectomy, chemonucleolysis
Spinal stenosis
Can cause claudication of cauda equina.
Tabes dorsalis
Tertiary neurosyphalis where the nerves of the dorsal columns deteriorate. Loss of position, vibration, touch. Also, painful. Loss of proprioception with pain? Syphalis.
Pain with cough sneeze or bowel movement?
Epidural abscess causing spinal cord compression
Three types of spinal turmors
Extradural (between meninges and spine bones)
Intradural extramedullary (within meninges)
Intramedullary (inside the cord)
Spondylolisthesis
Where vertebrae are displaced anteriorly
Wallenberg syndrome IMPORTANT
Patient presents with slurred speech, imbalance and numbness. No weakness. Posterior medullary lesion that spares the pyramids.
Hallmark of brainstem syndromes?
Crossed signs: ipsilateral symptoms on the face, contralateral symptoms on the body. CNIII is midbrain, VI and VII are pontine, and IX, X, XI define medulla.