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BACKGROUND Percutaneous transpedicular needle biopsy was performed on thoracic and lumbar vertebral bodies with a thin trocar (2.0 mm outer diameter) under observation with a conventional X-ray image intensifier in order to establish a correct histopathological diagnosis. We also evaluated the clinical validity of this less invasive diagnostic method in(More)
BACKGROUND Although the frequent occurrence of scoliosis in patients who have spastic cerebral palsy is well known and surgical treatment has often been recommended for these patients, little is known about the natural history of scoliosis in this population. We aimed to clarify the natural history of scoliosis from childhood through to adulthood and(More)
A characteristic dysfunction of the hand has been observed in various cervical spinal disorders when there is involvement of the spinal cord. There is loss of power of adduction and extension of the ulnar two or three fingers and an inability to grip and release rapidly with these fingers. These changes have been termed "myelopathy hand" and appear to be(More)
The authors describe their experience with 26 cases of thoracic myelopathy secondary to hypertrophic ossification of the spinal ligament (posterior longitudinal ligament and/or ligamentum flavum). The clinical manifestations of this condition and results of its surgical treatment are described. The commonest symptoms were numbness or tingling in the legs(More)
The patient presented with neurofibromatosis and a dystrophic kyphoscoliosis around the cervico-thoracic junction. When the patient was 59 years old, he started to suffer from dyspnea caused by an intrathoracic meningocele in the upper left thoracic cavity. A wide laminectomy from T2 to T5 was performed and the meningocele was resected. Although the(More)
To justify lumbar fusion or stabilization, a quantitative assessment and definition of spinal instability are essential. To quantify spinal instability, the tensile stiffness of a motion segment (vertebra-disc-vertebra) was measured with a spinal distractor during spinal decompression surgery. Stiffness was indicated by the relationship between load and(More)
While the authors have often observed the hand presenting spastic dysfunction and deficient pain sensation in patients with cervical compression myelopathy, which has been termed "Myelopathy hand," they have occasionally seen a different type of myelopathy hand characterized by muscle wasting and motor dysfunction in patients with cervical spondylosis. This(More)
Paraplegia secondary to pulmonary surgery occurred in two patients because of epidural migration of hemostatic agents. Computerized tomography following myelography revealed the lesion clearly. Both patients achieved satisfactory neurological recovery through prompt diagnosis and treatment.
BACKGROUND Ossification of the ligamentum flavum overlying the lower thoracic spine frequently produces myelopathy. This study analyzed the postoperative outcomes after decompressive laminectomy for thoracic OLF. METHODS We retrospectively studied 13 patients (10 male, 3 female; mean age, 58 years; range, 39-69). The mean follow-up duration was 66 months(More)
BACKGROUND In degenerative lumbar spinal disease with nerve root compression, the L5 and S1 nerve roots are the most often affected and the L3 nerve root is involved infrequently. The purpose of this study was to investigate the characteristics of L3 nerve root radiculopathy. METHODS Seventeen consecutive patients with L3 radiculopathy were treated. The(More)