Neurosurgery
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Loss of axial rotation and lateral bending after atlantoaxial fusion reduces a patient's quality of life. Therefore, effective, nonfusion fixation alternatives are needed for atlantoaxial instability. ⋯ PAARNF restricted atlantoaxial flexion-extension but preserved axial rotation and lateral bending at the atlantoaxial joint in a type II odontoid fracture model. However, it should not be used clinically until further studies have been performed to test the long-term effects of this procedure.
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The aim of intervention for unruptured intracranial aneurysms (UIAs) is safe, effective treatment. ⋯ Complication-effectiveness analyses increase the information available with regard to outcome for the management of UIAs.
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Onyx Embolization for Isolated Type Dural Arteriovenous Fistula Using a Dual-Lumen Balloon Catheter.
Utilization of a dual-lumen balloon may improve Onyx penetration into isolated dural arteriovenous fistulas (i-DAVFs). ⋯ Utilization of a dual-lumen balloon catheter for Onyx embolization of i-DAVF seemed to significantly increase the immediate complete occlusion rate and decrease total procedural time, Onyx injection time, and number of feeders requiring embolization.
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Corpus callosotomy is a palliative procedure especially for Lennox-Gastaut semiology without localization with drop attacks. ⋯ This preliminary study demonstrated the efficacy and safety of complete callosotomy with anterior, hippocampal, and posterior commissurotomy in Lennox-Gastaut syndrome (drop attacks) with moderate to severe mental retardation.
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Concern about radiation-induced optic neuropathy (RION) has governed recent thinking about the role of radiation therapy in the treatment of meningiomas involving the anterior optic pathways. Despite this concern, during the last few years, the use of radiosurgery for such lesions has increased steadily. ⋯ Good local control rate and a low risk of RION indicate that mRS is a safe and effective treatment option in cases of large meningiomas.