The Experts below are selected from a list of 2103 Experts worldwide ranked by ideXlab platform
Toshifumi Ozaki - One of the best experts on this subject based on the ideXlab platform.
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spinal cord herniation into Pseudomeningocele after traumatic nerve root avulsion case report and review of the literature
European Spine Journal, 2008Co-Authors: Masato Tanaka, Hisanori Ikuma, Kazuo Nakanishi, Yoshihisa Sugimoto, Haruo Misawa, Tomoaki Takigawa, Toshifumi OzakiAbstract:We present an extremely rare case of traumatic spinal cord herniation due to a brachial plexus avulsion injury and provide a review of the literature of spinal cord herniation. Spinal cord herniation is an uncommon condition that can occur spontaneously or as a result of surgery or trauma. This condition often presents with symptoms and signs as Brown-Sequard syndrome. Traumatic Pseudomeningoceles after a brachial plexus avulsion injury have been reported. But transdural herniation of the spinal cord into this Pseudomeningocele is an extremely rare and poorly documented condition. There is only two reports of this condition in a thoracic case. The authors report the case of a 22-year-old man presented with a 2-year history of quadriplegia. He was involved in a motorcycle accident, 3 years prior to his presentation. Four years after the initial right brachial plexus injury, he was not able to walk independently. Magnetic resonance imaging (MRI) and computerized tomography (CT) myelography revealed a lateral Pseudomeningocele arising from the right C6–7 and C7–T1 intervetebral foramen and cervical spinal cord herniation into this Pseudomeningocele. The patient underwent primary closure of Pseudomeningocele to prevent spinal cord reherniation. He can walk with cane and use left arm unrestrictedly at the 2-year follow-up examination. Spinal cord herniation following traumatic nerve root avulsion is extremely rare but it should be considered in the differential diagnosis of patients presenting with delayed myelopathy or Brown-Sequard syndrome.
Nicholas Theodore - One of the best experts on this subject based on the ideXlab platform.
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Spinal cord compression from traumatic anterior cervical Pseudomeningoceles: Report of three cases
Journal of neurosurgery. Spine, 2006Co-Authors: Eric M. Horn, Ruth E. Bristol, Iman Feiz-erfan, Elisa J. Beres, Nicholas C. Bambakidis, Nicholas TheodoreAbstract:Pseudomeningoceles rarely develop after cervical trauma; in all reported cases the lesions have extended outside the spinal canal. The authors report the first known cases of anterior cervical Pseudomeningoceles contained entirely within the spinal canal and causing cord compression and neurological injury. The authors retrospectively reviewed the cases of three patients with traumatic cervical spine injuries and concomitant compressive anterior Pseudomeningoceles. The lesion was recognized in the first case when the patient's neurological status declined after he sustained a severe atlantoaxial injury; the Pseudomeningocele was identified intraoperatively and decompressed. After the decompressive surgery, the patient's severe tetraparesis partially resolved. In the other two patients diagnoses of similar Pseudomeningoceles were established by magnetic resonance imaging. Both patients were treated conservatively, and their mild to moderate hemiparesis due to the Pseudomeningocele-induced compression abated. The high incidence of anterior cervical Pseudomeningoceles seen at the authors' institution within a relatively brief period suggests that this lesion is not rare. The authors believe that it is important to recognize the compressive nature of these lesions and their potential to cause devastating neurological injury.
Masato Tanaka - One of the best experts on this subject based on the ideXlab platform.
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spinal cord herniation into Pseudomeningocele after traumatic nerve root avulsion case report and review of the literature
European Spine Journal, 2008Co-Authors: Masato Tanaka, Hisanori Ikuma, Kazuo Nakanishi, Yoshihisa Sugimoto, Haruo Misawa, Tomoaki Takigawa, Toshifumi OzakiAbstract:We present an extremely rare case of traumatic spinal cord herniation due to a brachial plexus avulsion injury and provide a review of the literature of spinal cord herniation. Spinal cord herniation is an uncommon condition that can occur spontaneously or as a result of surgery or trauma. This condition often presents with symptoms and signs as Brown-Sequard syndrome. Traumatic Pseudomeningoceles after a brachial plexus avulsion injury have been reported. But transdural herniation of the spinal cord into this Pseudomeningocele is an extremely rare and poorly documented condition. There is only two reports of this condition in a thoracic case. The authors report the case of a 22-year-old man presented with a 2-year history of quadriplegia. He was involved in a motorcycle accident, 3 years prior to his presentation. Four years after the initial right brachial plexus injury, he was not able to walk independently. Magnetic resonance imaging (MRI) and computerized tomography (CT) myelography revealed a lateral Pseudomeningocele arising from the right C6–7 and C7–T1 intervetebral foramen and cervical spinal cord herniation into this Pseudomeningocele. The patient underwent primary closure of Pseudomeningocele to prevent spinal cord reherniation. He can walk with cane and use left arm unrestrictedly at the 2-year follow-up examination. Spinal cord herniation following traumatic nerve root avulsion is extremely rare but it should be considered in the differential diagnosis of patients presenting with delayed myelopathy or Brown-Sequard syndrome.
William E Krauss - One of the best experts on this subject based on the ideXlab platform.
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central nervous system superficial siderosis following spinal surgery
Journal of Neurosurgery, 2005Co-Authors: Aaron A Cohengadol, Patty P Atkinson, William E KraussAbstract:✓ Superficial siderosis of the central nervous system is a rare progressive disease associated with hemosiderin deposition on the leptomeninges of the neuraxis. In addition to tumors and vascular lesions, dural sleeve Pseudomeningoceles caused by brachial plexus avulsion injury may be the bleeding source in this disease. The authors describe a patient who underwent anterior cervical spine surgery for spinal cord compression due to the ossification of posterior longitudinal ligament. The operation was complicated by a dural tear and subsequent psedomeningocele formation. Nine years later, this patient developed superficial siderosis. The possible mechanisms involved in the development of superficial siderosis in this patient will be discussed.
Keiro Ono - One of the best experts on this subject based on the ideXlab platform.
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Postoperative cervical Pseudomeningocele with herniation of the spinal cord.
Spine, 1995Co-Authors: Noboru Hosono, Kazuo Yonenobu, Keiro OnoAbstract:Study Design. This is a report of a patient in whom spinal cord herniation into a Pseudomeningocele resulted in progressive myelopathy. Objective. To describe the outcome of a 59-year-old man who visited Osaka University Hospital complaining of gait disturbance. He had undergone cervical laminectomy to resect a spinal cord tumor 14 years previously. Summary of Background Data. Pseudomeningocele is an extremely rare condition and can be overlooked. In addition, cord herniation into the Pseudomeningocele rarely can be diagnosed before surgical exploration. Our patient represents the first case we are aware of in which magnetic resonance imaging could clearly demonstrate not only the Pseudomeningocele, but the herniation of the cord into the cyst. Methods. Magnetic resonance imaging was used for preoperative and postoperative investigation. Results. The Pseudomeningocele was resected to improve the neurologic status of the patient. During the operation, the herniated cord was successfully reduced into the original subarachnoid space by the release of adhesion. Most symptoms subsided soon after surgery. Magnetic resonance imaging could delineate not only the cyst and cord herniation, but the medullary pathology. The distribution of high-intensity areas on T2-weighted images suggested the cord damage. Conclusion. Magnetic resonance imaging revealed not only the cyst and cord herniation, but medullary pathology, too.
