Numerical Investigation of the Mechanical Properties of 3D Printed PLA Scaffold

Abidin, Zainal; Fadhlurrahman, Irfan Ghani; Akbar, Imam; Putra, Risky Utama; Prakoso, Akbar Teguh; Kadir, M. Zahri; Astuti, Astuti; Syahrom, Ardiyansyah; Ammarullah, Muhammad Imam; Jamari, J.; Basri, Hasan

doi:10.2991/ahe.k.220205.015

Cited by 3 publications

(2 citation statements)

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“…musculoskeletal disorders are complained about by workers in factories that do not provide adequate rest, so many researchers are looking for ways to overcome them [62], [63] [64]. Musculoskeletal disorders that include the upper and lower spine, shoulders, and wrists are risk factors for the surgeon profession [65]. In several previous studies, it is known that the prevalence of musculoskeletal disorders among surgeons ranges from 25% to 85% [66], [67], [68].…”

Section: Manymentioning

confidence: 99%

Chairless Chairs for Orthopedic Surgery Purpose – A Literature Review

Santoso

Sugiharto

Mughni

et al. 2022

Open Access Maced J Med Sci

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Musculoskeletal disorders are often found in various types of work, including surgeons. Standing working position is immobile and rigid when performing surgical operations. The equipment used is less ergonomic which is the main parameter. The surgeon profession belongs to the category of the high-risk profession and has the potential to experience musculoskeletal disorders. Surgeons who suffer musculoskeletal disorders sense disease start from mild-to-severe due to the muscles receiving static loads frequently in the long-term. The emergence of musculoskeletal disorders can be caused by working environment conditions and standing position while working, causing injury to joints, vertebral discs, nerves, cartilage, tendons, and muscles. This paper describes in extensive the potential for reducing musculoskeletal problems with the use of a chairless chair for surgeons in carrying out operations. Musculoskeletal problems in surgery and the use of chairless chairs have been further explored to close the existing research gap.

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Section: Manymentioning

confidence: 99%

Chairless Chairs for Orthopedic Surgery Purpose – A Literature Review

Santoso

Sugiharto

Mughni

et al. 2022

Open Access Maced J Med Sci

Self Cite

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“…End-artifacts distort results more strongly in shorter specimens compared to taller specimens. To standardize the mechanical characterization of porous scaffolds, international standards of traditional polymer based-materials have been widely adopted by several research groups [26][27][28]. For instance, the American Society for the Testing of Materials' (ASTM) ASTM D695 standard for compressive properties of rigid plastics defines the standard test specimen for strength measurements to be in the form of a prism or cylinder whose aspect-ratio, defined as height/diameter (H/D), is a minimum of 2/1 [29].…”

Section: Introductionmentioning

confidence: 99%

Height-to-Diameter Ratio and Porosity Strongly Influence Bulk Compressive Mechanical Properties of 3D-Printed Polymer Scaffolds

Raggio

Arancibia²,

Millán³

et al. 2022

Polymers

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Although the architectural design parameters of 3D-printed polymer-based scaffolds—porosity, height-to-diameter (H/D) ratio and pore size—are significant determinants of their mechanical integrity, their impact has not been explicitly discussed when reporting bulk mechanical properties. Controlled architectures were designed by systematically varying porosity (30–75%, H/D ratio (0.5–2.0) and pore size (0.25–1.0 mm) and fabricated using fused filament fabrication technique. The influence of the three parameters on compressive mechanical properties—apparent elastic modulus Eapp, bulk yield stress σy and yield strain εy—were investigated through a multiple linear regression analysis. H/D ratio and porosity exhibited strong influence on the mechanical behavior, resulting in variations in mean Eapp of 60% and 95%, respectively. σy was comparatively less sensitive to H/D ratio over the range investigated in this study, with 15% variation in mean values. In contrast, porosity resulted in almost 100% variation in mean σy values. Pore size was not a significant factor for mechanical behavior, although it is a critical factor in the biological behavior of the scaffolds. Quantifying the influence of porosity, H/D ratio and pore size on bench-top tested bulk mechanical properties can help optimize the development of bone scaffolds from a biomechanical perspective.

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