摘要:

This study investigated the relationship between cervical spine sagittal canal diameter and neurologic injury in cases of spinal fracture-dislocation. A group of 98 patients with such injuries was reviewed; 45 had no neurologic deficits, 39 had incomplete quadriplegia, and 14 had complete quadriplegia. Spinal canal sagittal diameter was measured in all, and large diameter and small canals were defined. Small diameter canals were correlated significantly with neurologic injury, while large diameter canals allowed protection from neurologic injury in cervical fracture dislocation.

ISSN:0362-2436    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

The results of 146 patients with anterior cervical intervertebral disc removal and fusions are reviewed. The diagnosis was cervical spondylosis in 75%, disc protrusion in 16%, and spondylosis at one level with disc protrusions at another in 9%. There were 81 women and 65 men with an average age of 48 ± 9 years. The average follow-up was 5 ± 3.3 years. The rate of fusion was 97%. Complete pain relief occurred in 78%, partial in 18% and little or no pain relief in 4%. There were no serious complications, and none of the patients thought they were made worse by surgery.

ISSN:0362-2436    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

A case of acute spinal subdural hematoma is reported in a 24-year-old woman. Presentation occurred in the postpartum period, 4 days following epidural anesthesia. Emergency decompressive laminectomy attained partial recovery. Subsequent pathology demonstrated evidence of a low-grade ependymoma. Reported cases of spinal subdural hematomas are reviewed and compared with the characteristics of this unique case.

ISSN:0362-2436    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

The effect of experimental trauma on the blood flow in the central (essentially gray matter) and peripheral (essentially white matter) regions of the sheep's spinal cord was studied using a radioactive microsphere technique. In seven out of eight animals, a progressive fall in blood flow occurred in both the peripheral and central regions of the cord within 2 hours following injury and remained reduced over the period of recording (up to 12 hours). Changes in local vascular resistance indicated that in approximately 60% of our animals, changes in arterial pressure alone contributed highly significantly to the decreased spinal blood flow. There remains the possibility that early therapeutic intervention could sustain neuronal function where local blood flow would otherwise be inadequate in the damaged spinal cord.

ISSN:0362-2436    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

Proprioception testing and gait analysis was performed on a group of 17 patients with Idiopathic scoliosis. All curves had documented progression. The average curve was 26.8°, all primary curves being right thoracic. The average age was 14.8 years. Twelve, healthy, age-matched controls underwent identical testing. Results showed that scoliotic subjects had asymmetry in their ability to reproduce angles between their two knees, as well as an absolute deficit in their ability to reproduce angles as compared with controls (P<0.01). The threshold of detection of change in angle at the knee was also quantitatively higher than controls (P<0.05), although asymmetry was not statistically significant. No significant differences were measured in gait parameters between scoliotics and controls. These joint position tests have been applied previously to young and elderly adults, athletes, and total joint patients. In no group has any asymmetry of response been demonstrated, both extremities showing virtually identical performance in each case. The tests administered measure sensory modalities, which are conducted through the posterior columns. Although the site of damage in the neural pathway cannot be specifically localized by these tests, results of this study support the presence of a neurologic deficit in idiopathic scoliosis.

ISSN:0362-2436    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

Despite the fact that pseudarthrosis is the most common complication after posterior spinal fusion, no reproducible diagnostic method has been established. This study analyzes the accuracy of the anteroposterior trispiral tomography in evaluating the posterior spinal fusion mass. Tomography was shown to be both sensitive and specific in its ability to detect the presence or absence of a pseudarthrosis. Radiation exposure is not increased when tomography is performed in lieu of less accurate diagnostic studies. Anteroposterior trispiral tomography is a useful adjunct in the routine postoperative evaluation of the patient who has undergone a posterior spinal arthrodesis.

ISSN:0362-2436    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

A case of recurrent spinal astrocytoma is presented 25 years following initial biospy and radiation therapy. Extensive laminectomy was performed when the patient was 20 months old. Three years later the patient became paraplegic as the result of progressive severe kyphosis. Late recurrence of tumor was marked by pain onset. In addition to treating the tumor, extensive spinal reconstruction was required to control the kyphosis.

ISSN:0362-2436    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

A 13-year-old girl presented with a 6-month history of back pain, a palpable paravertebral mass, and a left third lumbar radiculopathy. Radiologic studies were consistent with a primary vertebral neoplasm. Posterior biopsy yielded material consistent with osteoblastoma. Anterior tumor excision and vertebral reconstruction followed. Elements consistent with aneurysural bone cyst were present in the resected tumor.

ISSN:0362-2436    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

In order to study the detailed arrangements of vascular, terminations in the region of the vertebral end-plate in adult dogs, infusions of Japanese ink mixed with a suspension of barium sulfate were used to produce filling of the vascular terminations at the vertebral end-plates. Radiographs were made of the decalcified specimens. Photomicrographs were prepared from transparent sections embedded in celloidin. The distribution of the large veins within the vertebral bodies was found to be more complex than described earlier. Over the entire bone-disc interface there is a continuous capillary bed that is most dense in the area related to the nucleus pulposus. These vessels drain either into the subchondral postcapillary venous network or directly into the veins of the marrow spaces in the vertebral bodies.

ISSN:0362-2436    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

The effects of injury to the intervertebral disc were investigated using three-dimensional flexibility and creep measurements of functional spinal units from fresh cadaver lumbar spines. The techniques utilized were accurate and the data had a high degree of reproducibility. An injury to the annulus and a removal of the nucleus significantly altered the mechanical properties of the spinal unit. Not only were the main motions affected but also the coupled motions. Sagittal plane symmetry was disturbed, resulting in asymmetric facet joint movements. These effects of injury could be measured because of the three-dimensionality of the experiments. Previous studies, utilizing only axial compression loading, claimed to observe no changes due to the disc injuries and are, therefore, in conflict with the present findings.

ISSN:0362-2436    

出版商:OVID    

年代:1984

数据来源: OVID