A series of 14 patients with a protruded thoracic intervertebral disc is reported. We believe that the true incidence may be as high as one patient per million population per annum. Trauma, sometimes mild, seems to have played a significant role in this series. This fact coupled with pronounced numbness and disagreeable paraesthesiae should suggest the diagnosis with thoracic spinal lesions. Ar...

Ossified ligamentum flavum (OLF) is being appreciated as an important cause of thoracic myeloradiculopathy. However, despite numerous epidemiological and basic science studies, the pathogenesis of OLF has not been conclusively established. Ossification and symptom development are significantly more frequent in the Japanese population, therefore supporting a genetic predilection for the disease ...

A 51-year-old man underwent surgery for ossification of the ligamentum flavum at the T9-T10 levels. Intraoperatively, the dura was opened unintentionally and a subcutaneous suction drain was placed. The patient complained of severe headache and nausea postoperatively. Brain computed tomography obtained 3 days after the surgery demonstrated remote cerebellar hemorrhage and hydrocephalus. Subocci...

Two cases of dynamic lumbar spinal stenosis were identified by the authors using axial loaded magnetic resonance image (MRI). In both cases, the patients presented with neurogenic claudication but MRI in decumbency showed no definite pathologic condition associated with their symptoms. In contrast, axial loaded MRI demonstrated constrictive spinal stenosis and a significantly decreased dural sa...

Calcification of the ligamentum flavum (CLF) can cause myelopathy due to spinal cord compression. Only several cases in Caucasian patients have been described. Neurological deterioration can only be stopped by surgical decompression. We report a 63-year-old Caucasian woman presenting with progressive pins-and-needles sensations in both hands, worsened by painful paresthesia in both lower extrem...

131 Abstract: A five-year-old male Great Dane was presented with nonambulatory tetraparesis and during the drip follow-up period its neurologic status became worse, despite conservative management for 10 days. Ligamentum flavum disease, dorsal bony compression and malformation of the articular process were diagnosed by magnetic resonance imaging (MRI). A dorsal laminectomy was performed. Physio...

What are the causes of cervical myelopathy? Myelopathy is caused by any pathologic process that interferes with transmission of signals through the spinal cord. In regard to orthopedic surgery, the most common cause of this disease is due to cervical degenerative disc disease putting pressure on the spinal cord in a condition referred to a cervical spondylotic myelopathy. The remaining referenc...

PURPOSE A comparison of MRI and computed tomography-myelography (CTM) for lumbar intracanalar dimensions. To compare the capability and reproducibility of MRI and CTM in measuring the cross-sectional morphology of intracanalar lesions of the lumbar spine. MATERIALS AND METHODS MRI and CTM of lumbar disc levels from 61 subjects with various lumbar spinal diseases were studied. Dural area, dura...