World Neurosurg
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To evaluate the long term C1-C2 fusion rates, fracture healing and functional outcomes in geriatric patients with type II odontoid fracture treated with posterior fixation with polyaxial C1 lateral mass screws and C2 pars screws. ⋯ This study adds to the evidence that posterior atlantoaxial fixation with polyaxial C1 lateral mass screws and C2 pars screws is a safe and effective surgical option in the treatment of odontoid fractures including long-term stability.
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The pipeline embolization device (PED) is a flow-diverting stent that provides an additional treatment modality in the management of intracranial aneurysms. An aneurysm treated with a flow diverter is expected to involute over time, contrary to the immediate obliteration expected by surgical clipping or coiling. Yet, which aneurysms will respond to PED therapy and the time frame to expect full obliteration remain unclear. ⋯ The rate of PED aneurysm obliteration increases with longer follow-up; however, the time frame for observing a persistently filling aneurysm before additional treatment is considered remains unknown. Some aneurysms may never close even after discontinuation of dual antiplatelet therapy. Ophthalmic artery aneurysms have been noted to fail treatment with PED based on the anatomic relationship of the aneurysm to the ophthalmic artery. This case provokes us to consider factors that may affect the latency to aneurysm obliteration, including aneurysm size, aneurysm morphology, patient gender, failure of previous aneurysm treatment, and duration of time from initial endovascular treatment.
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Colloid cyst is the most common neoplastic lesion of the third ventricle, and the occurrence of 2 colloid cysts in the ventricular system is rare. ⋯ This report illustrates the importance of proper radiologic study in a case of colloid cyst and preparing preoperatively and excision of both the colloid cyst whenever present, to prevent the recurrence.
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Observational Study
Outcome after decompressive craniectomy in different pathologies.
We compare the outcome after decompressive craniectomy for various neurologic diseases with the final common pathway of coma, compression of the basal cisterns, a midline shift, or refractory intracranial hypertension. ⋯ The outcome after decompressive craniectomy does not differ significantly in different diseases once the final pathophysiologic pathway of refractory intracranial hypertension, coma, compression of the basal cisterns, or midline shift has been reached.
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The anterior temporal artery (ATA) is an appealing donor artery for intracranial-intracranial bypass procedures. However, its identification may be difficult. Current literature lacks useful landmarks to help identify the ATA at the surface of the sylvian fissure. The objective of this study was to define the topographic anatomy of the cortical segment of the ATA relative to constant landmarks exposed during the pterional approach. ⋯ This article provides topographic evidence for efficient identification of the ATA in the parasylvian space. The key relationship and landmarks identified in this study may increase efficiency and safety when harvesting the ATA for intracranial-intracranial bypass.