Spine

Question 0

What is Wiltses classification?

Answer 0

Spondy, 5 types

Degenerative
Isthmic
Traumatic
Congenital
Pathologic

Question 1

What can cause stenosis?

Answer 1

Disk
Hyper trophy of facets or flavin
Listhesis
Slippage of facets into foramen

Question 2

Spondy at l5-s1 is usually what type?

Answer 2

Isthmic

Question 3

Degenerative listhesis usually occurs where?

Answer 3

L4-L5

Question 4

Meyerding classification is for what pathology?

Answer 4

Spondylolisthesis

Question 5

Sport (spine outcomes research trial) trial showed what regarding degenerative spondy?

Answer 5

No difference in outcomes with ITT

As treated analysis, improvement with OR

Patients with DS and stenosis improved more with OR than people with stenosis alone.

Problem: lots of crossover

Question 6

How to measure pelvic incidence?

Answer 6

Pelvic incidence is fixed
Sacral slope plus pelvic tilt

In Order to maintain saggital balance you can extend hip or lordose lumbar

Incidence equals lumbar lordosis plus 10

Question 7

How to measure saggital balance?

Answer 7

C7 plumb line should be within 2.5 cm of posterior superior aspect of S1

Question 8

How do you measure pelvic incidence on an X-ray?

Answer 8

Line from center of femoral head to center of sacrum, perpendicular line to center of sacrum, angle between these two lines is incidence

Normal is 54 degrees