Table 1.
The Thoracolumbar AOSpine Injury Score (TL AOSIS) (Vaccaro et al., 2016).
| Fracture pattern | Points | |
|---|---|---|
| Type A-Compression fractures | ||
| A0 | Minimal injuries such as transverse process fractures | 0 |
| A1 | Wedge compression | 1 |
| A2 | Pincer compression injury | 2 |
| A3 | Incomplete burst fracture: Fracture that only involves a single endplate | 3 |
| A4 | Complete burst fracture: Fracture that involves both endplates | 5 |
| Type B-Tension band injuries | ||
| B1 | Osseous disruption of the tension band | 5 |
| B2 | Posterior tension band injury including ligamentous injury | 6 |
| B3 | Anterior tension band injury | 7 |
| Type C | ||
| C | Translation/rotation injuries | 8 |
| Neurological status | ||
| N0 | Neurologically intact patient | 0 |
| N1 | Resolved transient neurological symptoms | 1 |
| N2 | Persistent radicular symptom | 2 |
| N3 | Incomplete spinal cord or cauda equina injury | 4 |
| N4 | Complete spinal cord injury | 4 |
| NX | Neurologic exam is unobtainable | 3 |
| Case specific modifiers | ||
| M1 | Fractures in which the status of the posterior ligamentous complex is unclear | 1 |
| M2 | Patient-specific morbidities affect the treatment algorithm such as ankylosing spondylitis and polytrauma | 0 |
| Treatment recommendation | Conservative treatment | <4 |
| Conservative or surgical treatment | 4,5 | |
| Surgical treatment | >5 | |