Leptomeningeal and ependymal deposition or calcification with hydroxyapatite cement resorption: A case report

Peter Lee, Mohanned Alnammi, Mara Kunst

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Background and importance: HydroSet is a hydroxyapatite cement that can be used for reconstruction of skull defects. We describe a case of HydroSet resorption resulting in intraventricular and leptomeningeal deposition or calcification, which is a previously unreported complication. Clinical presentation: A patient who had a craniotomy augmented with HydroSet developed a pseudomeningocele, disappearance of cement fragments, and new hyperdense coating of the dura, upper cervical cord, and ventricles on CT after a fall. Conclusion: r Resorption of a hydroxyapatite cement resulting in leptomeningeal and ependymal deposition or calcification have not been previously reported.

Original languageEnglish (US)
Article number101157
JournalInterdisciplinary Neurosurgery: Advanced Techniques and Case Management
StatePublished - Sep 2021

All Science Journal Classification (ASJC) codes

  • Surgery
  • Clinical Neurology

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