|Synonyms||Vertebral fracture, broken back|
|Lateral spine X-ray showing osteoporotic wedge fractures of L1/2|
A spinal fracture, also called a vertebral fracture or a broken back, is a fracture affecting the vertebrae of the spinal column. Most types of spinal fracture confer a significant risk of spinal cord injury. After the immediate trauma, there is a risk of spinal cord injury (or worsening of an already injured spine) if the fracture is unstable, that is, likely to change alignment without internal or external fixation.
- Cervical fracture
- Clay-shoveler fracture – fracture through the spinous process of a vertebra occurring at any of the lower cervical or upper thoracic vertebrae
- Burst fracture – in which a vertebra breaks from a high-energy axial load
- Compression fracture – a collapse of a vertebra, often resulting in the form of a wedge-shape due to larger compression anteriorly
- Chance fracture – compression injury to the anterior portion of a vertebral body with concomitant distraction injury to posterior elements
- Holdsworth fracture – an unstable fracture dislocation of the thoracolumbar junction of the spine
- Distraction is an where there is pulling apart of the vertebrae. Distraction injuries generally cause breaks in osseous and ligamentous supporting structures, and are therefore generally unstable. A distraction injury on the posterior side of a vertebra can lead to a compression fracture on its anterior side.
Risk of spinal cord injury
Thoracolumbar injury classification and severity score
The thoracolumbar injury classification and severity score (TLICS) is a scoring system to determine the need to surgically treat a spinal fracture of thoracic or lumbar vertebrae. The score is the sum of three values, each being the score of the most fitting alternative in three categories:
- Compression fracture - 1 point
- Burst fracture - 2 points
- Translational rotational injury - 3 points
- Distraction injury - 4 points
Posterior ligamentous complex
- Intact - 0 points
- Suspected injury or indeterminate - 2 points
- Injured - 3 points
- Intact - 0 points
- Spinal nerve root injury - 2 points
- Incomplete injury of cord/conus medullaris - 3 points
- Complete injury of cord/conus medullaris (complete) - 2 points
- Cauda equina syndrome - 3 points
A TLICS score of less than 4 indicates non-operative treatment, a score of 4 indicates that the injury may be treated operatively or non-operatively, while a score of more than 4 means that the injury is usually considered for operative management.
AOSpine Thoracolumbar Injury Classification System
AOSpine Thoracolumbar Injury Classification System (ATLICS) is the most recent classification scheme for thoracolumbar injuries. ATLICS is broadly based on the TLICS system and has sufficient reliability irrespective of the experience of the observer. ATLICS is primarily focused on fracture morphology, and has two additional sections addressing the neurological grading and clinical modifiers:
- Type A: Compression injuries (sub-types A0-A4)
- Type B: Distraction injuries (sub-types B1-B3)
- Type C: Translation injuries
- N0: neurologically intact
- N1: transient deficit
- N2: radiculopathy
- N3: "incomplete spinal cord injury or cauda equina injury"
- N4: "complete spinal cord injury"
- NX: unknown neurological status
- M1: unknown tension band injury status
- M2: comorbidities
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