Customized Cranioplasty Implants Using Three-Dimensional Printers and Polymethyl-Methacrylate Casting
Journal of Korean Neurosurgical Society
;
: 541-546, 2012.
Article
Dans Anglais
| WPRIM
| ID: wpr-178295
ABSTRACT
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 cm2) 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+/-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.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Crâne
/
Études de suivi
/
Conception assistée par ordinateur
/
Poly(méthacrylate de méthyle)
/
/
Méthacrylate de méthyle
/
Tomodensitométrie hélicoïdale
/
Craniectomie décompressive
/
Champignons
Type d'étude:
Étude observationnelle
/
Étude pronostique
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Journal of Korean Neurosurgical Society
Année:
2012
Type:
Article
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