Lateral process fractures
Eponymous name
Snowboarder's fracture
Epidemiology
10% talus fractures
Second to talar neck fractures
CT
Talar head fractures
Epidemiology
< 10% of all talus fractures
Rare and often missed
Types
Background
Epidemiology
Much less common than hip and knee OA
Patients tend to be younger
Ossification posterior longitunal ligament (OPLL)
Definition
Ossification of the posterior longitudinal ligament (OPLL)
Heterotopic ossification of the posterior longitudinal ligament
Epidemiology
2:1 Male:Female
More common in Japanese and East Asian populations
Articular process fractures
Articular process fracture
Natural history
Superior articular process fracture
- potentially unstable
Inferior articular process fracture
- thought to be more stable
CT scan
Atlanto-axial instability
Definition
Loss of ligamentous stability between atlas and axis
Can cause impingement of the spinal cord
Etiology