teardrop fracture

teardrop fracture

[tir′drop]
Etymology: AS, tear + dropa + L, fractura, break
an avulsion fracture of one of the short bones, such as a vertebra, causing a tear-shaped disruption of bone tissue.
A lower cervical spine fracture-dislocation compression fracture of the anteroinferior corner of a cervical vertebra, caused by flexion with axial loading or hyperflexive compressive forces which may cause posterior subluxation of the vertebrae or burst the vertebral body, separating and displacing a wedge-shaped fragment of bone from the antero-inferior margin; such fractures are not usually associated with permanent neurologic sequelae
Management Surgical fusion to stabilise the injury and prevent kyphosis, pain, and further neurologic deterioration Potential danger Posterior displacement into spinal canal with cord compression

teardrop fracture

Orthopedics A lower cervical spine fracture-dislocation compression fracture of the anteroinferior corner of a cervical vertebra, caused by flexion with axial loading or hyperflexive compressive forces which may cause posterior subluxation of the vertebrae or burst the vertebral body, separating and displacing a wedge-shaped fragment of bone from the antero-inferior margin; such fractures are not usually associated with permanent neurologic sequelae Imaging Lateral cervical film–wedging of vertebral body and an anterior-inferior fragment fractured from vertebral body; involved vertebrae are usually subluxed posteriorly; most Pts are rendered quadriplegic Management Surgical fusion to stabilize the injury and prevent kyphosis, pain, and further neurologic deterioration Potential danger Posterior displacement into spinal canal with cord compression. Cf Axial-load teardrop fracture, Wedge fracture.
References in periodicals archive ?
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.