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Other publication2024Peer reviewed

Design, clinical applications and post-surgical assessment of bioresorbable 3D-printed craniofacial composite implants

Targonska, Sara; Dobrzynska-Mizera, Monika; Di Lorenzo, Maria Laura; Knitter, Monika; Longo, Alessandra; Dobrzynski, Maciej; Rutkowska, Monika; Barnas, Szczepan; Czapiga, Bogdan; Stagraczynski, Maciej; Mikulski, Michal; Muzalewska, Malgorzata; Wylezol, Marek; Rewak-Soroczynska, Justyna; Nowak, Nicole; Andrzejewski, Jacek; Reeks, John; Wiglusz, Rafal J.

Abstract

This study details the design, fabrication, clinical trials' evaluation, and analysis after the clinical application of 3D-printed bone reconstruction implants made of nHAp@PLDLLA [nanohydroxyapatite@poly(l-lactide-co-d,l-lactide)] biomaterial. The 3D-printed formulations have been tested as bone reconstruction Cranioimplants in 3 different medical cases, including frontal lobe, mandibular bone, and cleft palate reconstructions. Replacing one of the implants after 6 months provided a unique opportunity to evaluate the post-surgical implant obtained from a human patient. This allowed us to quantify physicochemical changes and develop a spatial map of osseointegration and material degradation kinetics as a function of specific locations. To the best of our knowledge, hydrolytic degradation and variability in the physicochemical and mechanical properties of the biomimetic, 3D-printed implants have not been quantified in the literature after permanent placement in the human body. Such analysis has revealed the constantly changing properties of the implant, which should be considered to optimize the design of patient-specific bone substitutes. Moreover, it has been proven that the obtained composition can produce biomimetic, bioresorbable and bone-forming alloplastic substitutes tailored to each patient, allowing for shorter surgery times and faster patient recovery than currently available methods.This paper describes in detail the design, fabrication, clinical trial evaluation and post clinical application analysis of 3D-printed bone implants made from the nHAp@PLDLLA [nanohydroxyapatite; poly(l-lactide-co-d,l-lactide)] biomaterial.

Published in

Biomaterials Science
2024,
Publisher: ROYAL SOC CHEMISTRY

    UKÄ Subject classification

    Biomaterials Science

    Publication identifier

    DOI: https://doi.org/10.1039/d3bm01826a

    Permanent link to this page (URI)

    https://res.slu.se/id/publ/130203