In the extension teardrop fracture the craniocaudal length of the fragment is greater or equal to the transverse length.
The extension teardrop fracture of C2 is typically without cord injury and heals with nonoperative management.
Functional outcome following teardrop fracture of the axis.
Clinical features of the extension teardrop fracture of the axis: Review of 13 cases.
The significance of prevertebral soft tissue swelling in extension teardrop fracture of the cervical spine.
The teardrop fracture
is a fracture of the anteroinferior aspect of the vertebral body.
Flexion injuries range from the least severe, anterior subluxation, to the most severe, the teardrop fracture.
Vertebral bursting occurs with teardrop fracture anteriorly and retropulsion of the vertebral body, resulting in spinal cord compression with severe neurologic deficit.
The teardrop fracture is a severe, completely unstable cervical fracture in which the anterior, inferior corner of the involved vertebral body is fractured, taking on a teardrop shape.
Hyperextension also can result in an extension teardrop fracture.
In the extreme case, the teardrop fractures
right off, the body retrolistheses (moves backwards) through the spinal canal and transects the spinal cord.
Comparison of outcomes for unstable lower cervical flexion teardrop fractures
managed with halo thoracic vest versus anterior corpectomy and plating.