We carried out an MRI study of the lumbar spine in 15 patients with achondroplasia to evaluate the degree of stenosis of the canal. They were divided into asymptomatic and symptomatic groups. We measured the sagittal canal diameter, the sagittal cord diameter, the interpedicular distance at the mid-pedicle level and the cross-sectional area of the canal and spinal cord at mid-body and mid-disc ...

objective: lumbar spinal canal stenosis (lscs) has prominent position in spinal disorders of the elderly. ligamentum flavum hypertrophy plays a dominant role in narrowing of the lscs. there are some clues that ligamentum flavum hypertrophy is associated with diabetes mellitus. our objective was comparison of histological properties of ligamentum flavum in lumbar spinal canal stenosis patients w...

We reviewed the records of 28 patients with 30 burst-dispersion spinal fractures treated since the introduction of CT facilities in Western Australia. Twenty-five patients showed spinal canal deformity and stenosis with bone fragments protruding into the canal on the initial scan. Of these, 22 patients were treated nonsurgically. Fifteen of the conservatively treated patients were available for...

Zebrafish are able to regenerate the spinal cord and recover motor and sensory functions upon severe injury, through the activation of cells located at the ependymal canal. Here, we show that cells surrounding the ependymal canal in the adult zebrafish spinal cord express Foxj1a. We demonstrate that ependymal cells express Foxj1a from their birth in the embryonic neural tube and that Foxj1a act...

The normal intraoperative sonographic features of the spinal canal, spinal cord, conus medullaris, and cauda equina are described and illustrated. Important observations concerning the normal spinal cord include its highly reflective dorsal and ventral surfaces, its uniform hypoechogenicity, and the presence of a central echo. Other easily identified structures within the spinal canal include t...

BACKGROUND The study of lumbar spine pathology requires adequate preparation and knowledge of the normal structure of this part of the spine. The main goal of the study was to assess spinal canal morphology with computed tomography. The sagittal and interpedicular dimensions and surface area were considered the most important measurements. An additional goal was to assess the shape of the spina...

INTRODUCTION: Some authors have reported satisfactory short-term results of minimally invasive decompressive procedures such as microscopic or micro-endoscopic decompressive laminotomy for lumbar spinal canal stenosis. However, there have been no reports on the long-term clinical outcome of these procedures. The purpose of this study is to evaluate the long-term clinical outcome and radiologica...

Neuroblastoma is a nervous system malignancy. The extension of intra-abdominal neuroblastoma to the spinal canal is a rare condition. In this case report, we present a patient with monoplegia and a huge intra-abdominal mass with intra spinal extension and cord compression.

Pneumorrhachis (PR), which involves the entrapment of air or gas within the spinal canal, is a rare clinical entity. The pathogenesis and etiology of this uncommon entity vary and may present a diagnostic challenge. Air in the spinal canal can be divided into primary and secondary PR, extra- or intradural PR and etiologically classified as iatrogenic, traumatic and non-traumatic. PR is typicall...

Response: A central canal is defined in the opening of the discussion section (lines 196 – 199) as ‘The central canal is an ependymal lined structure in the spinal cord that extends inferiorly from the fourth ventricle to the conus medullaris. Anatomical studies suggest the central canal is only seen in fetal and new born spinal cords and undergoes age related stenosis such that it is obliterat...