ANNPE

Question 1

What is ANNPE?

Answer 1

Acute non-compressive nucleus pulposus extrusion

Question 2

Which dogs are usually affected by ANNPE?

Answer 2

Non-chondrodystrophic dogs

Question 3

What does ANNPE result from?

Answer 3

Changes in the spinal cord secondary to an acute impact of extruded disc material following a traumatic incident

Question 4

Whats the properties of the disc material extruded?

Answer 4

THe disc material is generally non-degenerate and there is no residual spinal cord compression

Question 5

Can ANNPE induce local hemorrhage?

Answer 5

Yes - epidural hemorrhage can sometimes be associated but tends only to cause mild, non-significant spinal cord compression

Question 6

What are the clinical signs of ANNPE?

Answer 6

Per-acute, generally non-compressive
Not painful
Usually lateralized

Question 7

Image modality of choice?

Answer 7

MRI

CT+ myelography can also be used to exclude any extradural spinal cord compression

Question 8

Negative prognostic factor?

Answer 8

LMN lesions

Question 9

Negative prognostic factor?

Answer 9

LMN lesions
No nociception

Question 10

How many % of dogs regained ambulation following a thoracolumbar ANNPE where nociception were intact at presentation?

Answer 10

99%

Question 11

How many % of dogs regained ambulation following a thoracolumbar ANNPE where nociception were intact at presentation?

Answer 11

99%