Severe wedge deformity of the vertebral body with subluxation of the facet joints
Introduction
Introduction of severe wedge deformation of the vertebral body with subluxation of the facet joint This type, also known as flexion (rotation) fracture and dislocation, is also a clinically more serious type. It is easy to be associated with spinal cord injury, but it is lighter than the former, but the incidence of this type is low, accounting for 7% to 9% of cases of wedge fracture caused by flexion violence. basic knowledge The proportion of illness: 0.005% Susceptible people: no specific population Mode of infection: non-infectious complication:
Cause
Severe wedge deformation of the vertebral body with the cause of facet joint subluxation
(1) Causes of the disease
Caused by vertical violence in flexion.
(two) pathogenesis
When the vertebral body suddenly suffers from compression violence, the middle part (column) and the posterior part (column) of the vertebral column are separated by the tensile stress due to the wedge deformation of the anterior segment of the vertebral column, and the three columns are destroyed at this time. If accompanied by rotational violence, the corresponding axial displacement of the vertebral ganglia, the anterior longitudinal ligament and the posterior longitudinal ligament are broken in succession and cause spinal cord injury. This type is often caused by the chest 11 ~ waist 2 segments, so the cone and the horsetail The damage rate is particularly high (Fig. 1A).
Prevention
Severe wedge deformation of the vertebral body with prevention of facet joint subluxation
There is no effective preventive measure for this disease. Early detection and early diagnosis are the key to the prevention and treatment of this disease.
Complication
Severe wedge deformation of the vertebral body with complications of facet joint subluxation Complication
Often concomitant spinal conus or horsetail injury, resulting in dysfunction of the bowel and bladder.
Symptom
Severe wedge deformation of the vertebral body with subluxation of the facet joints Common symptoms Severe pain Defecation disorder The anterior medial and calf...
It has typical clinical manifestations of spinal fractures, local symptoms are more obvious, and the pain is severe, often unbearable, such as cone or horsetail injury, the two dysfunction, accompanied by sensory loss in the saddle area.
Examine
Severe wedge deformation of the vertebral body with examination of subarticular subluxation
X-ray films, CT scans and MRI examinations can confirm fractures, bone block displacement and spinal nerves.
Diagnosis
Severe wedge deformation of vertebral body with differential diagnosis of facet joint subluxation
Mainly based on trauma history, clinical findings and imaging examinations, including X-ray film and CT scan, the latter is mainly used to determine the location and direction of bone displacement, for those with neurological symptoms, should also be performed MR examination, Determine spinal cord or spinal nerve root involvement.
Generally not confused with other diseases.
