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PubMed1990

Cervical spinal canal plasticity in children as determined by the vertebral body ratio technique.

The sagittal cervical canal measurement from a plain spine radiography is easy to obtain and has a smaller range than the interpedicular distance. In an effort to standardize the sagittal measurement, a canal ratio, using the vertebral body diameter, has been formulated. If this method is to be used in the pediatric spine, the effect of the growing neuraxis must be considered. Lateral cervical spine radiographs of 301 normal children and adults were evaluated and grouped according to age. The canal ratio measurement demonstrated a consistent decrease through to the adult groups. Adjacent groups showed statistically significant decreases with age in all groups tested other than the oldest two groups. With the pediatric spinal canal vulnerable to various intracanalicular influences, the canal ratio may reflect early disease processes.

Adolescent↗
PubMed1985

[Clinical aspects of the narrow spinal canal].

Not infrequently the lumbosacral root-compression syndrome is due to stenosis of the lumbal spinal canal. The clinical symptoms, usually emerging in the middle-aged, may be characterized by either simple radicular pain with or without neurological deficit or by exercise-dependent transient functional disturbance of the cauda equina, namely, the so-called neurogenic intermittent claudication (NIC). In most cases, NIC is due to mechanical compression of the cauda fibers as a result of extension of the patient's lumbar spine. In some patients, exercise-induced ischemic radiculopathy is assumed to be the main factor. Differential diagnosis must take into account true intermittent claudication, certain rare myopathies (if the exercise-dependent pain is the main feature), and certain transient disturbances in spinal cord function (if a motor and/or sensory deficit arises during the NIC attack).

Cauda Equina↗
PubMed1988

Sway of the center of gravity in patients with spinal canal stenosis.

In this study the sway of the center of gravity was observed in patients with spinal canal stenosis, in order to observe the movement of the center of the gravity after the onset of claudication. In normal subjects the sway of the center of gravity was restricted to a small area, but in patients with spinal stenosis, the center of gravity was diverted to the left or right side. With claudication, the center of gravity moved forward. Following several rest periods, the center of gravity returned to the initial area. The time required to return to the initial area was longer than for a patient's subjective recovery from the symptoms.

Adult↗
PubMed2005

Disc-like herniation in association with gas collection in the spinal canal: CT evaluation.

Gas production as a part of disk degeneration can occur but rarely causes nerve compression syndromes. Few cases have been reported in which lumbar intraspinal epidural gas cause nerve root compression symptoms. We present 12 cases of gas collection in the spinal canal that were presented to the orthopaedic out-patient department with symptoms of low back pain and sciatica. CT showed the presence of free epidural gas collections adjacent to or over the affected nerve roots. Relief of symptoms was noted with the change of positions, lying down or sleeping. In this study, we conclude that the presence of lumbar intraspinal epidural gas that causes radicular compressing phenomena, can be easily detected with the use of CT.

Adult↗
PubMed1990

Delayed diagnosis of a foreign body in the spinal canal.

The absence of neurologic deficit does not preclude the diagnosis of stab wound injury of the spinal cord. Adequate radiologic examination is fundamental in detecting retained foreign bodies. Surgical extraction of foreign bodies is indicated to avoid infection and myelopathy.

Adult↗
PubMedDate not supplied

[Value of myeloscintigraphy in the evaluation of patency of the spinal canal].

The authors carried out 66 myeloscintigraphies in 66 patients suspected of having compressing lesions of the spinal cord. In 32 cases the obtained results agreed with the results of contrast myelography which was carried out in 38 patients, and in 22 cases these results were confirmed by operations. In the remaining cases contrast myelography was abandoned in view of unequivocal results of myeloscintigraphy and conservative treatment was started. On the basis of a comparative analysis the authors stated that myeloscintigraphy is safer than contrast myelography, less troublesome for the patient and eliminates the risk connected with contrast medium remaining in the subarachnoideal space. There are practically no contraindications to its use even in outpatients, and it could even be used for screening patients with suspected spinal cord compression. Myeloscintigraphy makes possible the diagnosis of spinal tumours, arachnoideal adhesions and meningocele. In cases of nucleus pulposus prolapse the method is less reliable and less useful. For determination of the character of the pathological lesion and its relation to the spinal cord, and also in cases with doubtful results of myeloscintigraphy contrast myelography should be done.

Adolescent↗