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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Bum-Joon (Department of Neurosurgery, Korea University College of Medicine) Hong, Ki-Sun (Department of Neurosurgery, Korea University College of Medicine) Park, Kyung-Jae (Department of Neurosurgery, Korea University College of Medicine) Park, Dong-Hyuk (Department of Neurosurgery, Korea University College of Medicine) Chung, Yong-Gu (Department of Neurosurgery, Korea University College of Medicine) Kang, Shin-Hyuk (Department of Neurosurgery, Korea University College of Medicine)
저널정보
대한신경외과학회 대한신경외과학회지 대한신경외과학회지 제52권 제6호
발행연도
2012.1
수록면
541 - 546 (6page)

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Objective : The prefabrication of customized cranioplastic implants has been introduced to overcome the difficulties of intra-operative implant molding. The authors present a new technique, which consists of the prefabrication of implant molds using three-dimensional (3D) printers and polymethyl-methacrylate (PMMA) casting. Methods : A total of 16 patients with large skull defects (>100 $cm^2$) underwent cranioplasty between November 2009 and April 2011. For unilateral cranial defects, 3D images of the skull were obtained from preoperative axial 1-mm spiral computed tomography (CT) scans. The image of the implant was generated by a digital subtraction mirror-imaging process using the normal side of the cranium as a model. For bilateral cranial defects, precraniectomy routine spiral CT scan data were merged with postcraniectomy 3D CT images following a smoothing process. Prefabrication of the mold was performed by the 3D printer. Intraoperatively, the PMMA implant was created with the prefabricated mold, and fit into the cranial defect. Results : The median operation time was $184.36{\pm}26.07$ minutes. Postoperative CT scans showed excellent restoration of the symmetrical contours and curvature of the cranium in all cases. The median follow-up period was 23 months (range, 14-28 months). Postoperative infection was developed in one case (6.2%) who had an open wound defect previously. Conclusion : Customized cranioplasty PMMA implants using 3D printer may be a useful technique for the reconstruction of various cranial defects.

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