A 50-year-old female presented with complaints of progressive ataxia. Investigations showed a large intradural arachnoid cyst located anterior to the brainstem. Following marsupialization of the cyst she improved remarkably in her symptoms. The symptoms recurred nine months later and investigations revealed recurrence of the cyst. The cyst was evacuated again and two Teflon sponge sheets were placed such that they traversed the length of the cyst cavity and extended into the cisterna magna. At follow-up after 25 months, there has been no recurrence of symptoms or the cyst. The role and advantages of Teflon sponge in such cases is evaluated.
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Microvascular Decompression for Trigeminal Neuralgia Secondary to Vertebrobasilar Dolichoectasia: Review of the Literature and Illustrative Case.
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Institute of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University, 00136 Rome, Italy.
Classical trigeminal neuralgia (TN) is a chronic pain disorder characterized by severe, unilateral facial pain, often resulting from vasculonervous conflict. A less common cause of TN is vertebrobasilar dolichoectasia (VBD). Microvascular decompression (MVD) is the preferred surgical intervention for TN, but in case of VBD, the surgical procedure is more complex due to the aberrant vascular anatomy.
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[Microvascular Decompression:The Superiority of Transposition].
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Department of Neurosurgery, Toyohashi Heart Center.
In this feature article, we underscore the advantages of Transposition over Interposition in the management of trigeminal neuralgia and hemifacial spasm. Interposition, while effective, has raised concerns owing to long-term complications associated with the use of artificial materials, such as Teflon and silicone sponges. Transposition, on the other hand, mitigates these issues, showcasing adaptability to a range of anatomical and pathological conditions and affirming its standing as a safer and more effective treatment alternative.
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