All patients had epidural abscess, and one also presented subdural empyema. Five patients underwent drainage of all associated abscesses, bone resection, and sinusitis treatment. One was treated conservatively with broad-spectrum antibiotics, and no surgical intervention was required. All patients fully recovered their neurologic status, without further complications.
Background:Expanding the posterior cranial vault has become a common procedure in the treatment of complex craniosynostosis. Several techniques are available to remodel the posterior vault. Aim of this study was to analyze the posterior vault distraction osteogenesis.Methods:Between 2011 and 2014, 21 children (12 boys) were operated on for a posterior distraction of the cranial vault. The mean age was 8.6 months (minimum, 3 months; maximum, 15 years). Thirteen patients presented a craniofacial syndrome. Five had already been operated on (two anterior cranial surgery, two suboccipital decompression, and one craniotomy for sagittal synostosis). Raised intracranial pressure (ICP) was present in 6 patients. Seven patients had symptomatic cerebellar tonsils herniation (TH).Results:In 17 children, 2 lateral distractors were placed, in 3 a 3rd medial distractor was placed, and in 1 child 4 distractors were implanted. Volumetric analysis based on computed tomography showed a mean increase of volume of 13.9% 117 days later. After the distraction, symptoms related to raised ICP or TH were improved in all patients, however, radiologically TH was improved at the last follow-up in 54% of the cases.Conclusion:Posterior cranial vault distraction is an efficacious technique to enlarge the posterior skull vault and treat increased ICP. Moreover, it appears to be efficacious in treating TH-related symptoms.
Myxopapillary ependymomas are almost exclusively seen at the conus medullaris/filum terminale/cauda equina region, usually as solitary space-occupying lesions. The authors report the case of a 14-year-old boy with double concomitant myxopapillary ependymoma, proximal and caudal on the filum terminale in which a totally gross removal was achieved in two stages. This presentation is rare and, so far, we have known just three similar cases that were previously reported in children. The true nature of these lesions is controversial, and while some argue that they are related to metastatic seeding, others consider them independent lesions developing synchronously. A review on dissemination of spinal myxopapillary ependymomas was done.
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