A multi-criteria assessment strategy for 3D printed porous polyetheretherketone (PEEK) patient-specific implants for orbital wall reconstruction
Authors
Sharma, Neha
Welker, Dennis
Aghlmandi, Soheila
Zeilhofer, Hans-Florian
Honigmann, Philipp
Seifert, Thomas
Thieringer, Florian
Author (Corporation)
Publication date
13.08.2021
Typ of student thesis
Course of study
Type
01A - Journal article
Editors
Editor (Corporation)
Supervisor
Parent work
Journal of Clinical Medicine
Special issue
DOI of the original publication
Link
Series
Series number
Volume
10
Issue / Number
16
Pages / Duration
Patent number
Publisher / Publishing institution
MDPI
Place of publication / Event location
Basel
Edition
Version
Programming language
Assignee
Practice partner / Client
Abstract
Pure orbital blowout fractures occur within the confines of the internal orbital wall. Restoration of orbital form and volume is paramount to prevent functional and esthetic impairment. The anatomical peculiarity of the orbit has encouraged surgeons to develop implants with customized features to restore its architecture. This has resulted in worldwide clinical demand for patient-specific implants (PSIs) designed to fit precisely in the patient’s unique anatomy. Material extrusion or Fused filament fabrication (FFF) three-dimensional (3D) printing technology has enabled the fabrication of implant-grade polymers such as Polyetheretherketone (PEEK), paving the way for a more sophisticated generation of biomaterials. This study evaluates the FFF 3D printed PEEK orbital mesh customized implants with a metric considering the relevant design, biomechanical, and morphological parameters. The performance of the implants is studied as a function of varying thicknesses and porous design constructs through a finite element (FE) based computational model and a decision matrix based statistical approach. The maximum stress values achieved in our results predict the high durability of the implants, and the maximum deformation values were under one-tenth of a millimeter (mm) domain in all the implant profile configurations. The circular patterned implant (0.9 mm) had the best performance score. The study demonstrates that compounding multi-design computational analysis with 3D printing can be beneficial for the optimal restoration of the orbital floor.
Keywords
Blow-out, Biocompatible materials, Computer-aided design, Finite element analysis, Orbit, Implant, Orbital fracture, Patient-specific modeling, Printing, Three-dimensional
Subject (DDC)
Event
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ISBN
ISSN
2077-0383
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
Closed
Citation
SHARMA, Neha, Dennis WELKER, Soheila AGHLMANDI, Michaela MAINTZ, Hans-Florian ZEILHOFER, Philipp HONIGMANN, Thomas SEIFERT und Florian THIERINGER, 2021. A multi-criteria assessment strategy for 3D printed porous polyetheretherketone (PEEK) patient-specific implants for orbital wall reconstruction. Journal of Clinical Medicine. 13 August 2021. Bd. 10, Nr. 16. DOI 10.3390/jcm10163563. Verfügbar unter: https://doi.org/10.26041/fhnw-4132