Development of 3D printed patient-specific skull implants based on 3d surface scans

3D Printing in Medicine

Case Report

Patrick Knorr¹  Dirk Lindner²  Dirk Winkler²  Fabian Kropla³  Ronny Grunert⁴  Sebastian Scholz⁵ 

[1]Department for Automotive and Mechanical Engineering, University of Applied Sciences Zwickau, 08056, Zwickau, SN, Germany

[2]Department of Neurosurgery, University of Leipzig, 04103, Leipzig, SN, Germany

[3]Department of Neurosurgery, University of Leipzig, 04103, Leipzig, SN, Germany

[4]Department of Neurosurgery, University of Leipzig Medical Center, Liebigstr. 20, 04103, Leipzig, Germany

[5]Department of Neurosurgery, University Hospital Leipzig, Liebigstr. 20, 04103, Leipzig, Germany

[6]Department of Neurosurgery, University of Leipzig, 04103, Leipzig, SN, Germany

[7]Fraunhofer Institute for Machine Tools and Forming Technology, 02763, Zittau, SN, Germany

[8]Fraunhofer Institute for Machine Tools and Forming Technology, 02763, Zittau, SN, Germany

关键词: Cranioplasty;    Neurosurgery;    3D scan;    Patient-specific implant creation;    3D printing;    Additive manufacturing;   

DOI  :  10.1186/s41205-023-00183-x

 received in 2023-06-05, accepted in 2023-06-24,  发布年份 2023

来源: Springer

【 摘 要 】

Sometimes cranioplasty is necessary to reconstruct skull bone defects after a neurosurgical operation. If an autologous bone is unavailable, alloplastic materials are used. The standard technical approach for the fabrication of cranial implants is based on 3D imaging by computed tomography using the defect and the contralateral site. A new approach uses 3D surface scans, which accurately replicate the curvature of the removed bone flap. For this purpose, the removed bone flap is scanned intraoperatively and digitized accordingly. When using a design procedure developed for this purpose creating a patient-specific implant for each bone flap shape in short time is possible. The designed skull implants have complex free-form surfaces analogous to the curvature of the skull, which is why additive manufacturing is the ideal manufacturing technology here. In this study, we will describe the intraoperative procedure for the acquisition of scanned data and its further processing up to the creation of the implant.

【 授权许可】

CC BY   
© The Author(s) 2023

【 图 表 】

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Fig. 2 (abstract A15)