Takeshi Takahata

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The authors report the case of a 47-year-old woman who harbored a giant cell tumor at the T-5 level. She had undergone curettage of the tumor via a combined anterior and posterior approach at a regional hospital and was later referred to the authors' institution for treatment after the tumor recurred. On examination she exhibited progressive paraparesis and(More)
BACKGROUND Recurrence of chronic subdural hematoma after surgery has not been eliminated. We sought to determine whether irrigation influences recurrence rate. METHODS Patients who had undergone surgery for chronic subdural hematoma were reviewed retrospectively. RESULTS Between 1986 and 1993, 186 cases of chronic subdural hematoma were treated(More)
There have been few studies that investigated and clarified the relationships between progression of degenerative changes and sagittal alignment of the cervical spine. The objective of the study was to longitudinally evaluate the relationships among progression of degenerative changes of the cervical spine with age, the development of clinical symptoms and(More)
The biomechanical characteristics of the lumbar intervertebral disc were investigated by 3-dimensional finite element method. The results were: (1) Under compression load, the nucleus pulposus received the strongest vertical force and the annulus fibrosus restrained its expansion. The inner posterolateral annulus fibrosus was vulnerable. (2) Under flexion(More)
The outcome of cerebrovascular disease in the elderly, defined as persons 70 years of age and over, and in the non-elderly, those under 70 years, was compared. Fifty-one consecutive elderly and 156 non-elderly patients were studied. The patients in each group were classified according to type of cerebrovascular event: intracerebral hemorrhage, cerebral(More)
Eight patients had a radical resection of sacral tumours, and bilateral severance of lumbosacral nerves was required. Their neurological deficits and disturbance of activities of daily living (ADL) were studied. The neurological deficits which occurred were motor dysfunction of the lower limbs, sensory disturbances, and urinary, faecal and sexual(More)
There has been no prospective study on age-related changes of the extensor muscles of the cervical spine in healthy subjects. This study was conducted to elucidate any association between the changes in cross-sectional area of the extensor muscles of the cervical spine on MRIs and cervical disc degeneration or the development of clinical symptoms. Sixty-two(More)
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