Congenital intradural intramedullary ependymal cysts of the spinal canal are very rare. The following case history is presented to emphasize the clinical features and to lead to a discussion of the origin of these cysts. We report our case with the brief review of the articles.
Spinal Canal

A soft ruptured thoracic disc herniation is very rare. We have experienced a ruptured T5-6 disc herniation which was migrated into spinal canal and compressed spinal cord posteriorly. It was difficult to differentiate it from cord tumor. Posterior laminectomy offers a better chance of removal than does the anterolateral or posterolateral approach this case.
Laminectomy* ; Spinal Canal ; Spinal Cord

The case of an 33-year-old man with an intradural and extramedullary enterogenous cyst in the thoracic spinal canal is presented. Enterogenous cysts are rare cystic tumors located in the spinal canal and causing spinal compression, and about half of the cases of enterogenous cysts are associated with congenital anomalies. This patient, however, had no vertebral anomaly or other evidence of congenital melformation. We reviewed literatures and recorded the distinguished features of intraspinal enterogenous cysts and discuss the clinical, radiological and histological findings.
Adult ; Humans ; Spinal Canal*

The use of titanium cages for posterior lumbar interbody fusion (PLIF) has gained popularity because it offers the advantages of anterior column support and stabilization. However, cage migration into the spinal canal may have severe or disastrous consequences. Here, the authors report an unexpected case of posterior migration of fusion cages after screw removal in a patient that underwent PLIF 12 months previously. Removal of the offending cages through revision extraforaminal lumbar interbody fusion (ELIF) with percutaneous screw fixation successfully managed this complication. As far as the authors' knowledge, this is the first case report to describe this sort of complication, and cautions that care must be taken to prevent cage migration.
Humans ; Spinal Canal ; Titanium

Pneumorrhachis, which involves the entrapment of air or gas within the spinal canal, is a rare clinical entity, and the pathogenesis and etiologies of this uncommon entity are various and can present a diagnostic challenge. Usually, pneumorrhachis represents an asymptomatic epiphenomenon but it can produce symptoms associated with its underlying pathology. Here, we report a rare case of symptomatic epidural pneumorrhachis accompanying pneumothorax. Possible pathogenic mechanisms are discussed and a review of the literature is included.
Pneumorrhachis ; Pneumothorax ; Spinal Canal

No abstract available.
Constriction, Pathologic* ; Spinal Canal*

No abstract available.
Neural Tube Defects* ; Spinal Canal*

The authors report the first case of histologically confirmed bone formation in the carbon fiber cage implant which used in posterior lumbar interbody fusion. A case of degenerative lumbar disc desease was treated by posterior lumbar interbody fusion with carbon fiber cage implant and local bone from posterior decompression. One year after the operation the cage was migrated into the spinal canal and compressed dural sac and nerve root. The cage was removed and investigated by light microscope. The histologic examination revealed viable bony traveculae in the cage. This finding suggest autogenous bone in the cage has a biologic bone-growth function after interbody fusion.
Carbon* ; Decompression ; Osteogenesis* ; Spinal Canal

No abstract available.
Foramen Magnum ; Meningioma* ; Spinal Canal*

The goals of treatment of thoracolumbar injuries are to provide an adequately decompressed spinal canal and painless, stable, satisfactorily aligned spinal column. To achive these goals, appropriate treatment is essential and accurate diagnosis of the spinal column injuries is the base to decide the treatment method. Classifications of fractures of the spinal column are standardly based on one of three variables: presumptive mechanism of injury, the fracture pattern and location, and the degree of fracture fragment displacement. Any classification scheme should ideally address both the skeletal and neurologic injuries, thereby offering a composite picture of the nature of any specific injury. Although there is no current classification that provides such a complete description, major advances in the catagorization of thoracolumbar injuries have occurred. Useful classifications are three column concept of Denis, comprehensive classification of Magerl et al and load sharing classification of McCormack.
Classification* ; Diagnosis ; Spinal Canal ; Spine