Atypical Lumbar Vertebra- L5

Question 1

How many joint surfaces are present on the vertebral body of the fifth lumbar?

Answer 1

Six

Question 2

How many cartilaginous (amphiarthrosis) symphysis joint surfaces are present on the vertebral body of L5?

Answer 2

Two

Question 3

How many fibrous (amphiarthrosis) syndesmosis joint surfaces are present on the vertebral body of L5?

Answer 3

Four

Question 4

What joint classifications will be observed at the vertebral body of the fifth lumbar?

Answer 4

Cartilaginous (amphiarthrosis) symphysis

Fibrous (amphiarthrosis) syndesmosis

Question 5

What muscle(s) attach to the fifth lumbar vertebral body?

Answer 5

Psoas major

Question 6

What is the joint classification of the mammillo-accessory ligament?

Answer 6

There is none since it attaches parts of the same vertebra together.

Question 7

What muscles may attach to the transverse process of the fifth THORACIC vertebrae?
(6)

Answer 7

Psoas Major 
Quadratus Lumborum 
Longissimus Thoracis
Rotator Brevis
Rotator Longus
Intertransversarii

Question 8

What ligaments traditionally attach to the transverse process of the fifth lumbar vertebra?
(3)

Answer 8

Lumbosacral Ligament
Iliolumbar Ligament
Mammillo-Accessory Ligament

Question 9

What is the reported angulation and X-ray appearance of the fifth lumbar articular facets?

Answer 9

They lie in the vertical plane and are coronal facets

Question 10

What is the name(s) of the condition in which the L5 Spinous Process increases in length due to the aging process?

Answer 10

Baastrup’s Syndrome or “Kissing Spines”

Question 11

What is the name given to the congenital condition in which the fifth lumbar spinous process is elongated, the sacrum exhibits spin bifid a, and dorsiflexion produces pain?

Answer 11

Knife Clasp Syndrome

Question 12

What muscles will attach to the fifth lumbar spinous process?
(7)

Answer 12

Latissimus Dorsi
Iliocostalis Lumborum
Longissimus Thoracis
Multifidis 
Rotator Longus
Rotator Brevis
Interspinalis