Cranioplasty After Removal of a Meningioma With Skull Invasion: A Technical Case Report

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This case report describes a novel cranioplasty technique using calcium phosphate paste. The patient was a man in his 50s with a convexity meningioma with skull invasion extending to the diploic layer. Craniotomy was performed, and the area of skull invasion was removed. Afterward, the skull defect was filled with calcium phosphate bone paste to maximize bone strength. To prevent the bone paste from falling off postoperatively, the area of skull invasion was removed more widely from the diploic plate side than from the inner side. This method may be a useful option for strengthening the skull in cases of cranioplasty for meningiomas with skull invasion.