Infection in the intervertebral disc space
occurs post surgically in approximately 1-2% of patients after spinal surgery.
Infection of nucleus pulposus due to infection of vertebral body end-plate cartilage
Risk Factors: pediatric patients (age < 8yo), post-op, immunocompromised
occurs post surgically in approximately 1-2% of patients after spinal surgery.
Discitis
Epidural Abscess 
Vertebral osteomyelitis
Osteomyelitis
Lens dislocation
Spine related
Spinal stenosis
Acute ligamentous injury