There is no difference between a blocked vertebra and a fused vertebra; a blocked vertebra is a fused vertebra.
Fusion vertebrae, also known as blocked vertebrae, are caused by incomplete segmentation of vertebrae during growth and development, affecting two or more segments. Fusion can be complete or limited to the vertebral bodies and arches, and is common in the lumbar spine, followed by the cervical spine, and rare in the thoracic spine, where multiple vertebrae are fused with each other but the total height remains unchanged.
Obstructed vertebrae are congenital bony fusion of the spine, often involving two or more vertebrae, the two vertebrae at the site of involvement often show complete bony fusion, in addition to the vertebral body, the pedicles are also fused to each other, the anterior and posterior diameters of the affected vertebrae become shorter and the front of the fusion of the vertebrae is more smooth anterior edge of the fused vertebrae is curved and concave, the equivalent of the vertebral gap in the bony fusion of the two vertebral bodies between the area of the vertebral body is thinned.
From the cervical spine, which is closely related to the functioning state of the brain tissue and has a supportive function, the fusion of the cervical spine, it may lead to some symptoms, such as dizziness and nausea.
It is recommended that if you have any discomfort, please consult a doctor in time.