Jean-François Boursier1, Alexandre Fournet2,3, Jean Bassanino1, Mathieu Manassero2, Anne-Sophie Bedu4, Dimitri Leperlier1. 1. Service de Chirurgie, Centre Hospitalier Vétérinaire Pommery, Reims, France. 2. Service de Chirurgie, Centre Hospitalier Vétérinaire d'Alfort, Université Paris Est Créteil-Ecole Nationale Vétérinaire d'Alfort, Maisons-Alfort, France. 3. Biomecanique et Biomateriaux Osteo-articulaires, UMR 7052, Paris, France. 4. Service d'Imagerie Médicale, Centre Hospitalier Vétérinaire Pommery, Reims, France.
Abstract
OBJECTIVES: The main purpose of this study was to determine the reproducibility and accuracy of a three-dimensional (3D) bone model printed on a desktop 3D-printer based on fused deposition modelling (FDM) technology with polylactic acid (PLA) and the effect of autoclave sterilization on the printed models. METHODS: Computed tomographic images of the tibia were obtained from 10 feline cadavers, used to create a bone surface-rendering file and sent to the 3D printing software. Right and left tibias were each printed five times with the FDM desktop 3D printer using PLA plastic material. Plastic models and cadaveric bones were measured with a profile projector device at six predetermined landmarks. Plastic bones were then sterilized using an autoclave before being re-measured applying the same method. Analyses of printed model size reliability were conducted using intra-class correlation coefficients (ICC) and Bland-Altman plots. RESULTS: The ICC always showed an almost perfect agreement when comparing 3D-printed models issued from the same cadaveric bone. The ICC showed moderate agreement for one measurement and strong/perfect agreement for others when comparing a cadaveric bone with the corresponding 3D model. Concerning the comparison of the same 3D-printed model, before and after sterilization, ICC showed either strong or perfect agreement. CLINICAL SIGNIFICANCE: Rapid-prototyping with our FDM desktop 3D-printer using PLA was an accurate, a reproducible and a sterilization-compliant way to obtain 3D plastic models. Georg Thieme Verlag KG Stuttgart · New York.
OBJECTIVES: The main purpose of this study was to determine the reproducibility and accuracy of a three-dimensional (3D) bone model printed on a desktop 3D-printer based on fused deposition modelling (FDM) technology with polylactic acid (PLA) and the effect of autoclave sterilization on the printed models. METHODS: Computed tomographic images of the tibia were obtained from 10 feline cadavers, used to create a bone surface-rendering file and sent to the 3D printing software. Right and left tibias were each printed five times with the FDM desktop 3D printer using PLA plastic material. Plastic models and cadaveric bones were measured with a profile projector device at six predetermined landmarks. Plastic bones were then sterilized using an autoclave before being re-measured applying the same method. Analyses of printed model size reliability were conducted using intra-class correlation coefficients (ICC) and Bland-Altman plots. RESULTS: The ICC always showed an almost perfect agreement when comparing 3D-printed models issued from the same cadaveric bone. The ICC showed moderate agreement for one measurement and strong/perfect agreement for others when comparing a cadaveric bone with the corresponding 3D model. Concerning the comparison of the same 3D-printed model, before and after sterilization, ICC showed either strong or perfect agreement. CLINICAL SIGNIFICANCE: Rapid-prototyping with our FDM desktop 3D-printer using PLA was an accurate, a reproducible and a sterilization-compliant way to obtain 3D plastic models. Georg Thieme Verlag KG Stuttgart · New York.
Authors: Neha Sharma; Shuaishuai Cao; Bilal Msallem; Christoph Kunz; Philipp Brantner; Philipp Honigmann; Florian M Thieringer Journal: J Clin Med Date: 2020-05-17 Impact factor: 4.241