Spinal cord compression Flashcards

1
Q

How many neurones make up the corticospinal tract?

A

2

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2
Q

Where does an upper motor neurone connect in the corticospinal tract

A

From the motor cortex to the anterior grey horn

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3
Q

Where does the corticospinal tract decussate?

A

At a medullary level

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4
Q

Is the corticospinal tract ipsilateral or contralateral?

A

Ipsilateral

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5
Q

Features of UMN lesion?

A

Increased tone
No fasciculation
Hyper-reflexia

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6
Q

Features of LMN lesion

A

Weakness
Atrophy
Hyporeflexia
Fasciculation

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7
Q

Where does the spinothalamic tract decussate?

A

At the spinal level

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8
Q

Is the spinothalamic tract ipsilateral or contralateral?

A

Contralateral

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9
Q

Where do the dorsal columns decussate?

A

Medullary level

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10
Q

Are the dorsal columns ipsilateral or contralateral

A

Ipsilateral

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11
Q

What functions do the dorsal columns carry?

A

Fine touch
Proprioception
Vibration

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12
Q

What functions does the spinothalamic tract carry?

A

Pain
Temperature
Crude touch

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13
Q

Causes of acute spinal cord compression?

A

Trauma
Tumours
Infection
Spontaneous haemorrhage

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14
Q

Causes of chronic spinal cord compression?

A

Degenerative disease-Spondylosis
Tumours
Rheumatoid arthritis

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15
Q

What is a cord transection?

A

A complete lesion knocking out all motor and sensory modalities

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16
Q

Signs of cord transection?

A

Initially flaccid arreflexic paralysis

UMN sign appear later.

17
Q

What is the Brown-Sequard syndrome?

A

Cord hemisection

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

18
Q

What is central cord syndrome?

A

Hyperflexion or extension injury to already stenotic neck?

19
Q

Features of central cord syndrome?

A

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

20
Q

Presentation of chronic spinal cord compression

A

Same as acute but UMN signs predominate

21
Q

How can spinal canal stenosis cause Spinal cord compression

A

Ostephytes
Bulging of IV discs
Facet joint hypertrophy
Subluxation

22
Q

Treatment of spinal cord compression

A

Immobilise
X ray/CT
Methylprednisolone
Decompress and stabilise