Feasibility of fabricating personalized 3D-printed bone grafts guided by high-resolution imaging

Hong, Abigail L.; Newman, Benjamin T.; Khalid, Arbab; Teter, Olivia M.; Kobe, Elizabeth A.; Shukurova, Malika; Shinde, Rohit; Sipzner, Daniel; Pignolo, Robert J.; Udupa, Jayaram K.; Rajapakse, Chamith S.

doi:10.1117/12.2254475

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…A significant advantage of utilising FDM technology is the potential to create complex and specific shapes. The process is currently adopted in bio-engineering, mainly for the manufacturing of tissue engineering scaffolds (Visscher et al , 2016; Hong et al , 2017; Shakor et al , 2017). Additionally, the automotive sector uses this technology to produce small components (Keles et al , 2017).…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on the mechanical properties of 3D-printed PLA tensile specimens

Grasso

Azzouz

Ruiz-Hincapie

et al. 2018

RPJ

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Purpose Recent advancements of 3D printing technology have brought forward the interest for this technique in many engineering fields. This study aims to focus on mechanical properties of the polylactic acid (PLA) feeding material under different thermal conditions for a typical fusion deposition of 3D printer system. Design/methodology/approach Specimens were tested under static loading within the range 20ºC to 60ºC considering different infill orientations. The combined effect of temperature and filament orientation is investigated in terms of constitutive material parameters and final failure mechanisms. The difference between feeding system before and post-3D printing was also assessed by mechanical test on feeding filament to verify the thermal profile during the deposition phase. Findings The results in terms of Young’s modulus, ultimate tensile strength (UTS), strain at failure (εf) and stress at failure (σf) are presented and discussed to study the influence of process settings over the final deposited material. Fracture surfaces have been investigated using an optical microscope to link the phenomenological interpretation of the failure with the micro-mechanical behaviour. Experimental results show a strong correlation between stiffness and strength with the infill orientation and the temperature values. Moreover, a relevant effect is related to deformed geometry of the filament approaching glass transition region of the polymer according to the deposition orientation. Research limitations/implications The developed method can be applied to optimise the stiffness and strength of any 3D-printed composite according to the infill orientation. Practical implications To avoid the failure of specimens outside the gauge length, a previously proposed modification to the geometry was adopted. The geometry has a parabolic profile with a curvature of 1,000 mm tangent to the middle part of the specimen. Originality/value Several authors have reported the stiffness and strength of 3D-printed parts under static and ambient temperature for different build parameters. However, there is a lack of literature on the combination of the latter with the temperature effects on the mechanical properties which this paper covers.

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Section: Introductionmentioning

confidence: 99%

Effect of temperature on the mechanical properties of 3D-printed PLA tensile specimens

Grasso

Azzouz

Ruiz-Hincapie

et al. 2018

RPJ

View full text Add to dashboard Cite

show abstract

“…Image quantification, classification and analysis using radiomics, and convolutional neural networks (CNN) of machine and deep learning were dominant topics. 619 – 623 3D printing papers were presented, 624 , 625 as were clinical decision support applications to reduce radiation dose. 626 Mobile devices were described for 3D wound care 627 and DICOM was still a topic at the meeting, this time for image quantification secondary capture.…”

Section: S Pacs Conferencesmentioning

confidence: 99%

SPIE Medical Imaging 50th anniversary: history of the Picture Archiving and Communication Systems Conference

Andriole

2022

J. Med. Imag.

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Current state of fabrication technologies and materials for bone tissue engineering

et al. 2018

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Feasibility of fabricating personalized 3D-printed bone grafts guided by high-resolution imaging

Cited by 4 publications

References 9 publications

Effect of temperature on the mechanical properties of 3D-printed PLA tensile specimens

Effect of temperature on the mechanical properties of 3D-printed PLA tensile specimens

SPIE Medical Imaging 50th anniversary: history of the Picture Archiving and Communication Systems Conference

Current state of fabrication technologies and materials for bone tissue engineering

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