T-Spine

Question 1

Three Columns of Thoracolumbar Stability

Answer 1

• Anterior: ALL and ant. 2/3 body
• Middle: Post 1/3 body and PLL
• Posterior: post ligs and vertebral arch

Question 2

Three Columns – Fx

Answer 2

1 column = stable
2 columns = depends on extent
3 columns = unstable

Question 3

Compression Fx

Answer 3

• flexion forces collapse anterior vertebral body
• kyhphosis converts axial load to flexion force = increased anterior loads
• If just ant body fx = stable
• If post. elements involved, maybe stable
• most common post menopausal white bitches (kyphosis)

Question 4

Vertebroplasty

Answer 4

• cement injected into painful fx body
• immediate pain relief, restoration of mobility
• prevents fx movement
• doesn’t correct deformity but prevents further collapse

Question 5

Kyphoplasty

Answer 5

• like vertebroplasty but also corrects deformity
• ballon inserted, inflated to restore vert body size
• ballon removed, cavity filled w cement

Question 6

Idiopathic Scoliosis – types

Answer 6

Infantile: boys, high risk for progression – tx necessary
-Adolescent: 10-maturity, girls 7x boys, often shows up during growth spurts. Progression (and tx effectiveness) stops at skeletal maturity

Question 7

Functional Scoliosis

Answer 7

-caused by muscle

Question 8

Curve types

Answer 8

named for location and side of apex as viewed from behind

*Xrays taken PA not AP