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At least 703 records · Page 39Linked to original sources
PubMed1975

Demonstration of cervical spinal canal before and after fusion operation.

With the help of myelography using "oil soluble" positive contrast media, it is possible with a horizontal beam and a prone patient to outline the dorsal limit of the vertebrae and to estimate the degree of disc protrusion in the cervical region. In order to demonstrate the effect of anterior "ventral" fusion and especially the removal of the disc protrusion a large number of patients were again subjected to myelography following operation. It was; therefore, desirable that the contrast medium instilled pre-operatively should be mobilized in order to achieve such a demonstration in the cervical region. The method of operative myelography are described and illustrated by photographs.

Cervical Vertebrae↗
PubMed2005

Tuberculoma of the cervical spinal canal mimicking en plaque meningioma.

A previously healthy, HIV-negative, 40-year-old man presented with a 2-month history of progressive weakness of his left arm. Magnetic resonance imaging revealed an intradural, extramedullary plaque-shaped lesion at C6-T1 levels with high contrast enhancement. Based on the patient's clinical and radiologic findings, it was believed that the patient had an en plaque meningioma, and he was operated on. Histologic examination of the mass revealed granulomas with multinucleated and Langhans-type giant cells, typical of a tuberculoma. Intradural extramedullary tuberculomas should be considered in the differential diagnosis of en plaque meningioma as a rare entity.

Adult↗
PubMedDate not supplied

[Radiodiagnosis of the spinal canal using a nonionic contrast medium].

In 320 cases contrast investigations of the vertebral column were carried out injecting by lumbar tap Metrizamide in 174 cases and Amipaque in 126 cases. In 259 cases the investigation was limited to the lumbar part, in 25 cases to the thoracic part, and in 19 cases to the cervical part of the spine. In 12 cases the whole vertebral canal was explored in this way. In 5 cases only epidurography was done. Very good or good contrast filling of the dural sac was obtained in the thoracolumbar segment using contrast medium 200 mg I/ml. In some cases this degree of concentration was inadequate for good visualization of the cervical segment. Side effects included headaches in 52%, nausea in 15%, vomiting in 4% of cases. In 28% of cases fever up to 38 degrees C was observed on the first day after the procedure. In 8 cases of repeated radiculography no evidence of arachnitis was demonstrated.

Adolescent↗
PubMed1997

Functional morphology of the spinal canal after endplate, wedge, and burst fractures.

Changes in the canal diameter during physiological motions are important considerations in the treatment of patients who have a burst fracture with the presence of bony fragments, but without neurologic deficit. In this in vitro study, the changes in the soft-canal diameter of the thoracolumbar region, when intact and after different fractures, was investigated under several different loading conditions. The soft-canal diameter was clearly identified on the lateral radiographs by attaching a series of steel balls to the posterior longitudinal ligament and ligamentum flavum in the midsagittal plane. Endplate, wedge, and burst fractures were produced incrementally in 19 three-vertebrae human cadaveric spine specimens by high-speed impacts. After each injury, a series of functional lateral radiographs were taken. The minimal canal diameter (MCD) was obtained by digitizing the images of the steel balls on radiographs using a custom-designed computer program. In the intact specimens, the MCD at the disc level changed significantly in flexion, extension, and compression, when compared with the MCD in the unloaded neutral position. However, the changes were small. The MCD after endplate and wedge fractures changed in a similar way. However, after the burst fracture, the MCD at the bone fragment level increased remarkably by a distraction force. It also significantly improved by an anterior shear force in comparison to the corresponding MCD in the neutral position. However, this change was smaller than the change due to the distraction force.

Biomechanical Phenomena↗
PubMed2004

A cervical myelopathy due to invaginated laminae of the axis into the spinal canal.

STUDY DESIGN: A case report and review of previous literature are presented. OBJECTIVE: The objective of this manuscript was to report a case of cervical myelopathy due to anomalous laminae of the axis in a patient with spina bifida. SUMMARY OF BACKGROUND DATA: In previous studies, few cases of invaginated anomalous laminae of the axis have been reported. Treatment was surgical removal of the invaginated laminae. METHODS: The patient's history, clinical examination, imaging findings, and treatment were reported. RESULTS: Characteristic findings were revealed from imaging studies, a multiplane reconstruction of the CT images, and a stereolithographic model of the cervical spine. The patient was treated with a posterior decompressive operation. The outcome was satisfactory, with an improvement in the patient's neurology. CONCLUSIONS: This is a report of a rare characteristic anomaly of the laminae of the axis. A multiplane reconstruction of the CT images and a stereolithographic model were useful for treatment of this case. Possible causes of this anomaly may be the failure of ossification or fusion of the embryological term.

Axis, Cervical Vertebra↗
PubMed1975

[Stenosis of the cervical spinal canal: acquired? congenital].

The authors show that it is impossible to describe congenital stenosis of the cervical rachidian canal with a particular morphology that would make it possible to recognize the condition before the appearance of neurological signs. They do not deny its existence, but at the moment there is no proof, and hope of a prophylaxis for the neuropathy is not justified. On the other hand, there is clearly a possibility of an acquired stenosis. The term arthrosis is so generalized that it has lost nearly all its meaning. The rheumatologist knows the complex lesions comprise osteophytes and thickening of the soft parts next to the bone, and can be accompanied by hypertrophy of the neighbouring bone tissue; projection of the disc, proceeding from a soft hernia to diffuse protrusion and to ossification, is one aspect among others. It is useful to analyse these factors and those concerning the vessels and nerve tissues both in the study of individual cases and in general studies.

Aged↗
PubMed1986

[An autopsy case of malignant schwannoma in the brachial plexus extending into the spinal canal].

A 40-year-old woman had pain and numbness in the left upper extremity, on Dec. 1982. These symptoms progressed gradually. She was admitted to our department on Jan. 26, 1984 because of neck pains and progressive paraplegia. Neurological examination revealed monoplegia of the left arm with absent DTRs, spastic paraplegia, sensory disturbances below Th 11 level and severe sphincter disturbance. A metrizamide myelogram showed intradural extramedullary mass at C 4-7. Laminectomy was immediately performed from C 3 to C 7. A soft and brown tumor was attached at the ventral aspect of the cord at C 3 and C 7 and it was firmly attached at the root sleeve of the C 5 level. The histological diagnosis of the tumor was malignant schwannoma. One month later, she was discharged on foot. However, she was re-admitted to our department because of intractable pains in left neck and arm in Aug. '84. The second operation was done on Sept. 15. A soft and brown mass was found intra- and extradurally and it invaded into paravertebral muscules. On Sep. 30 '84 she died from respiratory failure. Postmortem examination revealed that intra-extradural tumor was found at C 4-Th 3, and the left brachial plexus was swollen. In the brachial plexus, the nerve fiber was replaced with tumor in the perineurium. The tumor invaded to the vertebral body and the paravertebral muscles. There were numerous metastasis of the tumor in both lungs. The tumor was formed by variable and scanty cytoplasm with many mitotic figures.(ABSTRACT TRUNCATED AT 250 WORDS)

Brachial Plexus↗