World Neurosurg
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To evaluate modifications in static spinal status after posterior decompression surgery without fusion in patients with symptomatic central canal stenosis. ⋯ Our study showed an improvement in sagittal balance and lumbar lordosis after decompression surgery without fusion, even in patients with a preoperative SVA >100 mm. However, a certain degree of sagittal imbalance may persist after surgery in patients with major initial imbalance (SVA >100 mm). Nonetheless, after surgery, these patients experienced a clinical benefit comparable with that in the other groups.
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Low-grade glioma (LGG) of the neurohypophysis is an extremely rare tumor arising from the pituicytes of the posterior pituitary or the infundibulum. The preoperative imaging findings of these tumors mimic those of pituitary adenomas, and radical resection is often challenging in affected patients due to the hypervascularity of the tumor. Here we describe the clinical and radiologic features of this clinical entity. ⋯ Anterior displacement of a thick anterior pituitary by a tumor combined with evidence of flow voids on preoperative MRI is helpful in the preoperative diagnosis of LGG of the neurohypophysis. Radical resection should be attempted in these tumors, especially during primary surgery, even though it is associated with postoperative pituitary dysfunction.
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A standard post-concomitant radiochemotherapy involving adjuvant temozolomide (TMZ) was stopped after 6 cycles for high-grade gliomas (HGG). Several studies demonstrated that prolonged TMZ treatment increased survival for these patients. ⋯ During adjuvant TMZ treatment, tumor volume decreased significantly (P = 0.042, and P = 0.005, respectively) in patients with GBM and AA. Prolonged TMZ administration improved OS, without increased toxicity.
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Comparative Study
Comparison of Clinical and Radiologic Outcome of Three-Dimensional Correction in Lenke 5C Curve: Uniplanar Versus Polyaxial Pedicle Screws.
To evaluate radiologic and clinical outcome of three-dimensional correction using the uniplanar pedicle screw (UPS) combined with vertebral body derotation technique for treatment of Lenke 5C adolescent idiopathic scoliosis. ⋯ The application of UPS combined with vertebral body derotation technique can reduce vertebral rotation and obtain better patient self-image score when favorable coronal and sagittal realignment is achieved. This improvement remains superior during 2-year follow-up. This combined application is a promising option to achieve spinal three-dimensional correction in treating Lenke 5C curve.
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Case Reports
Ethmoid Meningoencephalocele in a Patient with Cerebrofacial Arteriovenous Metameric Syndrome.
Skull base meningoencephaloceles are a rare condition, frequently secondary to traumatic or iatrogenic causes. Cerebrofacial arteriovenous metameric syndrome (CAMS) is characterized by the presence of retinal, facial, and cerebral arteriovenous malformations (AVMs) with metameric distribution. To our knowledge, this is the first reported case associating these 2 conditions. ⋯ We report the unusual association between the development of a meningoencephalocele and a metameric syndrome, and comment on clinical implications in the management of this patient.