World Neurosurg
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To evaluate the outcome of posterior open reduction and interlaminae compression fusion using a screw-rod system combined with a structural iliac bone graft in the treatment of atlantoaxial dislocation (AAD) secondary to os odontoideum. ⋯ Intraoperative open reduction and interlaminae compression fusion using a posterior screw-rod system combined with a structural iliac bone graft is a safe and effective procedure for AAD secondary to os odontoideum.
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In minimally invasive endoscopic port surgery, the medium is air, and the image is clearer than in fluid. The most commonly used port is a single-channel port, which accommodates the rod lens of the endoscope and 2 microsurgical instruments. This setup decreases the freedom of movement of the 3 instruments, making the bimanual procedure difficult. We describe a novel "dual-channel" endoscopic port to facilitate a bimanual refinement procedure for removing deep-seated spontaneous intracerebral hematomas, and we demonstrate the feasibility of this method. ⋯ The dual-channel endoscopic port facilitated bimanual refinement microsurgery during the evacuation of deep-seated intracerebral hematomas, and it prevented the disturbance of the 3 instruments without restraining the scope of the operation during the microsurgical procedure.
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Meningiomas are the most common type of benign brain tumor, and the incidence of meningioma in women is more than twofold higher than in men. Several studies have demonstrated that hormones are somehow related to the growth of meningiomas. ⋯ This is the first report of a case in which an LHRH agonist promoted the growth of a pre-existing meningioma. We suggest that patients with a history of meningioma who are receiving LHRH agonist treatment should be closely monitored.
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To provide a quantification of the exposure of the vertical and horizontal segments of the intrapetrous carotid artery (IPCA) and to evaluate the possibilities of its mobilization and of performing surgical maneuvers on it using the retrosigmoid approach. ⋯ Exposure and mobilization of the IPCA using a retrosigmoid approach are feasible and could represent a viable option for the possibility of reaching a total resection of selected skull base tumors, even when involvement of the carotid canal is present.
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Retroperitoneal dumbbell lumbar spinal schwannomas (RDLSSs) classified as the Eden type 4 are composed of small intervertebral foramen components and large paravertebral components extending into the retroperitoneal cavity. The surgical management of RDLSSs s remains a great challenge for all neurosurgeons because of the features of tumor. ⋯ The operative plan should be tailored to the features of the RDLSS. Retroperitoneal laparoscopy surgery by the anterior approach can produce safe and effective resection of RDLSSs with minimal postoperative complications. This procedure may be preferred for RDLSSs mainly located in the retroperitoneum without spinal canal extension.