Lumbosacral Stenosis

Lädt!
Where does the spinal cord terminate in a large breed dog?
L4
L5
L6
L7
 
In which breed is lumbosacral stenosis reported to be a congenital problem?
Boxer
German shepard dog
Doberman
Labrador
 
Intervertebral disc protrusion is more obvious on dynamic imaging of the spine in
Flexion
Extension
Distraction
Torsion
 
In how many % of cases is conservative treatment of lumbosacral stenosis successful?
25%
35%
45%
55%
 
What surgical procedure is most commonly used for decompression of the cauda equina?
Dorsal laminectomy
Dorsal minilaminectomy
Foraminotomy
Distraction stabilisation
 
During dorsal laminectomy which anatomic structure needs to remain intact to avoid instability?
Caudal third of L7
Facet joint
Anulus fibrosus
Spinous process of sacrum
 
Which anatomic structure can not be seen during a dorsal approach to the lumbosacral articulation?
Facet joint
Caudal equina
Entrance zone of L7 spinal nerve
Lateral aspect annulus fibrosus
 
Foraminotomy is indicated for decompression of the spinal nerve
Along the spinal canal
At the entrance zone of the intervertebral foramen
At the middle zone of the intervertebral foramen
At the exit zone of the intervertebral foramen
 
What is the rational of stabilisation of the lumbosacral joint?
To avoid vertebral fracture
To reduce laminectomy membrane formation
To prevent further degeneration of the lumbosacral space
Relief of pressure on nerves
 
What is the reported recurrence rate of lumbosacral stenosis after surgical treatment?
8%
18%
28%
38%