Trauma

Question 1

Occipital condyle

Answer 1

Type I
II
III stable intact alar ligament
Rigid collar

Question 2

OCD

Answer 2

Fusion

C0-c2

Question 3

Atlas fx

Answer 3

Stable type I II III ( intact transverse ligament )
Halo
I juried TL ; ADI >3 ; sum lateral mass >8
Fusion c1-2

Question 4

Odontoid fx

Answer 4

Type I III hard collar
III no risk of nonunion young pt halo
Surgical c1-2 fusion

Question 5

Axis spondylolisthesis

Answer 5

Type I rigid collar 
Type II (3-5) type IIA halo

Surgery of II >5 , III

Question 6

Subaxial

Answer 6

Facet dislocation surgery
Lateral mass post decompression two level fusion
Compression 11 angulation 25%loss , unstable burst fx , unstable tear drop ; corpectomy strut graft fusion instrumentation

Question 7

THROCLUMBER

Answer 7

TLSO :
Burst ; <30 kyphosis, <50 lost height , intact PLC NO CNS SX
Chance : bony , intact plc
Compression: majoirty of pt , PLC
——
Updated :
Surgery for neurological deficit + sagittal instability
Sagittal instability ;
1- PLC injured
2- laminae fx
3- progressive kyphosis on flexion extension view

Question 8

RA C spine

Answer 8

AA sulblaxtion : AADI > 10 / SAC <14 surgery
Basilar invagination: Ranawat < 13 impaction
Cervicomedulary <135 MRI surgery
Subaxial : >4 mm / >20% PSF