Spinal cord compression Flashcards Preview

Neurology week 5 > Spinal cord compression > Flashcards

Flashcards in Spinal cord compression Deck (22)
Loading flashcards...
1

How many neurones make up the corticospinal tract?

2

2

Where does an upper motor neurone connect in the corticospinal tract

From the motor cortex to the anterior grey horn

3

Where does the corticospinal tract decussate?

At a medullary level

4

Is the corticospinal tract ipsilateral or contralateral?

Ipsilateral

5

Features of UMN lesion?

Increased tone
No fasciculation
Hyper-reflexia

6

Features of LMN lesion

Weakness
Atrophy
Hyporeflexia
Fasciculation

7

Where does the spinothalamic tract decussate?

At the spinal level

8

Is the spinothalamic tract ipsilateral or contralateral?

Contralateral

9

Where do the dorsal columns decussate?

Medullary level

10

Are the dorsal columns ipsilateral or contralateral

Ipsilateral

11

What functions do the dorsal columns carry?

Fine touch
Proprioception
Vibration

12

What functions does the spinothalamic tract carry?

Pain
Temperature
Crude touch

13

Causes of acute spinal cord compression?

Trauma
Tumours
Infection
Spontaneous haemorrhage

14

Causes of chronic spinal cord compression?

Degenerative disease-Spondylosis
Tumours
Rheumatoid arthritis

15

What is a cord transection?

A complete lesion knocking out all motor and sensory modalities

16

Signs of cord transection?

Initially flaccid arreflexic paralysis

UMN sign appear later.

17

What is the Brown-Sequard syndrome?

Cord hemisection

Ispilateral motor level
Ipsilateral and dorsal column sensory level
Contralateral spinothalamic sensory level

18

What is central cord syndrome?

Hyperflexion or extension injury to already stenotic neck?

19

Features of central cord syndrome?

Predom. distal upper limb weakness
Cape like spinothalamic sensory loss
Lower limb power preserved
Dorsal columns preserved

20

Presentation of chronic spinal cord compression

Same as acute but UMN signs predominate

21

How can spinal canal stenosis cause Spinal cord compression

Ostephytes
Bulging of IV discs
Facet joint hypertrophy
Subluxation

22

Treatment of spinal cord compression

Immobilise
X ray/CT
Methylprednisolone
Decompress and stabilise