One-stage frame-guided resection and reconstruction with PEEK custom-made prostheses for predominantly intraosseous meningiomas: technical notes and a case series.

Treatment of intraosseous meningiomas is a two-staged procedure including tumor resection and cranial reconstruction. Several are the potential pitfall of this kind of surgery such as the conspicuous dimensions usually reached by the tumor and the peculiar involvement of irregular and deep bony structures. For these reasons, a surgical accurate virtual planning and a careful removal followed by tailored reconstruction are mandatory to achieve satisfactory results. We analyzed six patients operated on for intraosseous meningiomas between September 2014 and June 2018. Resection strategy was planned beforehand and shared with the manufacturer who provided the PEEK cranioplasty used in the reconstructive phase. Between September 2014 and April 2018, six patients affected by intraosseous meningioma were operated on. Female/male ratio was 5:1 and mean age was 54 ± 10.8 years. Mean FU was 20.3 ± 16.4 months. Mean dimension was 73.9 ± 24.8 mm × 69.2 ± 16.2 mm. Mean surgical time was 5.1 ± 1.1 h. The resection of intraosseous meningiomas requires the earliest and finest reconstructive phase. Custom-made implants should be considered the gold-standard for cranioplasty, especially in large skull and in frontal or hairless areas of the skull. The described technique is simple, accurate, and effective in achieving good results in disease control as well as cosmetic and functional restoration.