World Neurosurg
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Racial disparities have been shown to affect surgical outcomes. However, the effect of race on complex spinal fusion outcomes remains understudied. The aim of this study is to determine if patient race affects 30-day complication rates after elective complex spinal fusion (≥5 levels). ⋯ Our study suggests that there is no difference between races in 30-day complication and readmission rates after complex spinal surgery requiring ≥5 levels of fusion.
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Physical data are lacking on nutrient transport in human intervertebral discs (IVDs), which support regeneration. Our objective was to study nutrient transport in porcine IVDs to determine the effects of biomechanical and physiological factors. ⋯ This method showed that most small molecule nutrient transport occurs via the end plate. Compressive load was a negligible benefit or hindrance to transport. Traction hindered transport in the short term. This method can be used to study strategies for increasing nutrient transport in IVDs.
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Case Reports
Spontaneous Intraventricular Hemorrhage: A Rare Presentation of a Skull Base Mesenchymal Chondrosarcoma.
Chondrosarcomas are very rare malignant, slow-growing tumors that develop in or near the petroclival region of the brain. We report a very rare case in which the tumor originated from left petrous bone and induced intraventricular hemorrhage leading to an acute comatose presentation. ⋯ Our experience of petroclival junction chondrosarcoma causing intraventricular hemorrhage may be the first to be documented. Preferred treatment of this highly malignant lesion is radical removal with postoperative radiotherapy.
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The aim of this article was to analyze risk factors for secondary new vertebral compression fractures (SNVCFs) after percutaneous vertebroplasty in patients with osteoporosis. ⋯ Poor bone mineral content can be a predictive factor of SNVCFs. To prevent SNVCFs, bone cement should be injected as evenly as possible into the vertebral body. Bone cement leakage into the disc space should be avoided.
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Case Reports
Delayed development of aneurysms following gamma knife surgery for trigeminal neuralgia: report of 2 cases.
Delayed development of intracranial aneurysms is an extremely rare complication of gamma knife surgery (GKS), with only 6 cases been reported to date. There are no reported cases after GKS performed to treat trigeminal neuralgia (TN). Of the 6 aforementioned cases, none referred to the natural history or pathophysiology of GKS-related intracranial aneurysm formation. ⋯ Long-term observations are necessary after GKS performed for TN owing to the possibility of formation of intracranial aneurysms near the irradiated region.