Miscellaneous

What is a bilateral facet dislocation?

What is a bilateral facet dislocation?

Bilateral facet dislocation occurs when a vertebra’s inferior facet dislocates anteriorly over the lower vertebra’s superior facet, locking in the intervertebral foramens, creating a severely unstable fracture. 2,3. CT has a higher sensitivity for C-spine injury and is the preferred imaging modality.

Is a unilateral facet dislocation stable?

Unilateral facet dislocation is a relatively stable type of facet dislocation.

What is unilateral facet dislocation?

Unilateral facet dislocation occurs when flexion, along with rotation, forces one inferior articular facet of an upper vertebra to pass superior and anterior to the superior articular facet of a lower vertebra, coming to rest in the intervertebral foramen (see the image below).

Are facet fractures unstable?

Although many cervical facet fractures are associated with significant displacement and instability, approximately 5% of all traumatic cervical spine injuries involve isolated non-displaced or minimally displaced facet fractures [1].

How do you stop a facet joint dislocation?

Skull traction and an anterior approach can be used to successfully treat severe lower cervical facet dislocation, obtaining complete decompression, good reduction, and maintenance of intervertebral height with retention of the physiological curvature of the cervical spine.

What is facet dislocation?

Facet dislocation refers to the anterior displacement of one vertebral body on another. Without a fracture, the only way anterior displacement can occur is by dislocation of the facets. Facet dislocation can occur to varying degrees: subluxed facets. perched facets.

How do you treat a facet dislocation?

Can facet joints dislocate?

Facet dislocation refers to the anterior displacement of one vertebral body on another. Without a fracture, the only way anterior displacement can occur is by dislocation of the facets. Facet dislocation can occur to varying degrees: subluxed facets.

How can I reduce cervical facet dislocation?

Ventral decompression, reduction, and stabilization of cervical facet dislocations eliminates the risk of extruded disc fragments encroaching the spinal cord, provides an effective method of reducing cervical facet dislocations, and provides a method for stabilizing a single motion segment.

At which level is a unilateral facet dislocation most likely to occur?

The inferior articular facet of vertebral above moves over the superior facet of the vertebral below and becomes locked. It usually affects C4-C5 or C5-C6 levels.

What is a facet dislocation?

What is an unilateral facet dislocation of the cervical spine?

Traumatic injuries to the cervical spine can result in a variety of fractures or dislocations. One unique type is a unilateral facet dislocation, also referred to as a jumped facet. This spine injury is a subtype of the more generalized traumatic cervical spine injuries known as facet dislocations. More specifically, it is anatomically defined as a unilateral dislocation, such that the inferior facet is rotated over the corresponding superior facet, resulting in it being anteriorly displaced.

What is a facet fracture?

A facet fracture occurs when one of the spinal vertebrae breaks. Facet dislocations happen when one or more vertebra moves out of its proper place in relation to the surrounding vertebrae in the spinal cord.

What is a cervical facet fracture?

What is a Cervical Facet Fracture or Dislocation? A cervical facet injury is an injury to the back of the neck bones.

What is cervical facet?

Cervical facet joints are small joints located in pairs on the back/side of your neck. These joints provide stability and guide motion in your spine.