In most series of neoplasms of the spinal canal, spinal cord and its leptomeninges, the incidence of meningioma group comprises approximately 25%. The incidence of multiple meningiomas is small when compared with the frequency of its single occurrence. In the majority of cases, their multiplicity is intracranial and spinal. Multiple meningiomas confined exclusively to the spinal canal are extre...

OBJECTIVE To discuss how the spinal cord deforms as a result of changes in posture or biomechanical alterations of the spine. DATA COLLECTION A hand search of available reference texts and a computer search of literature from the Index Medicus sources were collected, with special emphasis placed on spinal canal changes caused by various postural rotations and translations of the skull, thorax...

OBJECTIVES Patients with Type I neurofibromatosis scoliosis with intra-canal rib head protrusion are extremely rare. Current knowledge regarding the diagnosis and treatment for this situation are insufficient. The purpose of this study is to share our experience in the diagnosis and surgical treatments for such unique deformities. METHODS Six patients with Type I neurofibromatosis scoliosis w...

The height, width, and cross-sectional area of the vertebral canal and spinal cord along with the area ratio of spinal cord to vertebral canal in the cervical vertebra were evaluated in images obtained using computed tomography (CT). Measurements were taken at the cranial, middle, and caudal point of each cervical vertebra in eight clinically normal small breed dogs (two Shih Tzu, two Miniature...

In order to clarify the anatomical configuration of the spinal column in the supine position, we have examined T1-weighted sagittal midline magnetic resonance images of the spinal column in 20 healthy volunteers (11 men, nine women) in the supine position. The mean maximum angles of decline of the lumbar spinal canal in men and women were 12.6 (SD 3.9) degrees and 13.4 (3.3) degrees in the ceph...

In 1934 Mixter and Barr described the syndrome of the ruptured intervertebral disc in the lumbar region. Since then the herniated intervertebral disc has been considered to be the dominant cause of low back pain and sciatica. In 1953 Schlesinger and Taveras pointed out that in the presence of a narrow spinal canal patients with herniated intervertebral discs may present an atypical picture of m...

EKG Changes After Spinal Subarachnoid Hemorrhage • Marked morphological electrocardiographical changes occurred in a patient whose subarachnoid hemorrhage originated in the lower spinal canal. Thus, the electrocardiogram can show the changes well known for intracranial subarachnoid hemorrhage even when the source of bleeding is in the lower spinal canal. Additional

The spinal canal normally increases in size until about the tenth year when the epiphyses fuse between the arches of the spine and the vertebral bodies. Enlargement of the canal after this time is manifested by flattening and thinning of the pedicles, increase in the interpediculate and saggital diameters of the canal, and posterior scalloping of the vertebral bodies. The majority of intraspina...

Introduction Lumbar spinal stenosis is narrowing of the central spinal canal, lateral recess or the neural foramen. After initial recognition of spinal stenosis in 1802, a gradual understanding evolved over the next 150 years.1-4 Harris and Macnab described the importance of disc degeneration in the pathogenesis of stenosis.5 Macnab highlighted the lateral recess beneath the posterior facet joi...

INTRODUCTION Advances in digital computed tomography prompted the authors to use this technique to measure correlations between the lumbar spinal canal and the dural sac. The aim of the study was to: 1. Evaluate the value of surgical decompression of neural structures using digital computed tomography. 2. Establish mathematical correlations between the surface area of the dural sac and the narr...