Miscellaneous Lumbar Spine Questions

Question 1

How many synovial joints are maximally observed at each lumbar vertebra?

Answer 1

L1-L5 = 4 each

Question 2

How many joints are traditionally observed at each lumbar vertebral body?

Answer 2

L1-L5 = 6 each

Question 3

What is the superior articular facet orientation at each lumbar vertebra?

Answer 3

L1-L5 = backward, upward, medial (BUM)

Question 4

What is the inferior articular facet orientation at each lumbar vertebra?

Answer 4

L1-L5 = forward, downward, lateral (FoLD)