- See:
-
Anterior Subluxation & Wedge Fracture
-
Bilateral InterFacet Dislocation
-
Spinous Process Fracture (avulsion frx - "Clay Shoveler's Frx)
-
Flexion Tear Drop Fracture
- Discussion:
-
anterior subluxation is characteristic that more commonly results from a hyperflexion injury;
- recognition of lateral column frx helps to determine mechanism of injury as
hyperextension;
- this mechanism is of clinical importance as hyperflexion injury may be treated with traction in extension;
- treating
hyperextension frx dislocation injury in extension may only compound the problem;
- injuries resulting in anterolisthesis include:
-
unilateral facet subluxation (shows > 3-6 mm of anterior offset)
- hyperflexion strain - results in less offset;
- there are two flexion instability patterns in which the posterior & middle liagmentous complexes are
ruptured but anterior complex is intact;
- posterior element widening w/ subtle
compression frx of vertebral body;
-
bilateral fracture dislocation;
