Finite Element Analysis of Patient-Specific 3D-Printed Cranial Implant Manufactured with PMMA and PEEK: A Mechanical Comparative Study

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Abstract

This article reports on a patient who required a cranial protection system. Using additive manufacturing techniques and surgical planning with the help of bio-models, a patient-specific bone implant solution was proposed that allows aesthetic restoration of the affected area and provides an adequate level of protection. In addition, through a comparative analysis with finite elements, the mechanical response to external actions of the medical device, printed with two materials: polymethylmethacrylate (PMMA) and polyether-ether-ketone (PEEK), is simulated. The tested materials have recognized biocompatibility properties, but their costs on the market differ significantly. The results obtained demonstrate the similarities in the responses of both materials. It offers the possibility that low-income people can access these devices, guaranteeing adequate biomechanical safety, considering that PMMA is a much cheaper material than PEEK.

Original languageEnglish
Article number3620
JournalPolymers
Volume15
Issue number17
DOIs
StatePublished - 1 Sep 2023

Bibliographical note

Funding Information:
The work was carried out under the auspices of research projects, Development of customized bone implants with reduction of the affected area through the use of surgical guides and additive manufacturing. Phase I: development of the comprehensive methodology. and Development of customized bone implants with reduction of the affected area through the use of surgical guides and additive manufacturing. Phase II: additive manufacturing with PEEK and PEKK, and evaluation of a superficial modification of the implant, financed by the Salesian Polytechnic University. Approving resolutions: RESOLUTION No.002-003-2020-07-15 and RESOLUTION No005-005-2023-05-25, respectively.

Publisher Copyright:
© 2023 by the authors.

Keywords

  • custom medical device
  • finite element analysis
  • polyether-ether-ketone
  • polymethylmethacrylate

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