A facile, semi-automatic protocol for the design and production of 3D printed, anatomical customized orthopedic casts for forearm fractures

Ranaldo, Davide; Zonta, Filippo; Florian, Simone; Lazzaro, Jacopo

doi:10.1016/j.jcot.2023.102206

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…Various types of 3D scanners are utilized for acquiring human anatomy, each serving a specific purpose in the manufacture of custom orthotics. These include photogrammetry [9,11,22,23,26,29,46], structured light [7,12,15,21,24,25,32,[34][35][36]39,47], laser scanning [1,18,27,[41][42][43], and optical scanning [7,30,31,37,40,45], as well as combinations of these technologies [3]. The choice of scanner is dictated by the healthcare professional's specific needs, as each type has its own set of advantages and limitations for anatomical acquisition.…”

Section: Discussionmentioning

confidence: 99%

A Review on 3D Scanners Studies for Producing Customized Orthoses

Silva,

Fernandes

et al. 2023

Preprint

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When a limb suffers a fracture, rupture, or dislocation, it is traditionally immobilized with plaster. This may induce discomfort in the patient, excessive itching and sweating, which creates the growth of bacteria, leading to an unhygienic and difficulty to keep clean from treatment. Furthermore, if the plaster remains for a long period, it may cause lesions in the joints and ligaments. To overcome all these disadvantages, orthoses have emerged as important medical devices to help patients in rehabilitation, as well as for self-care of deficiencies in clinics and daily life. Traditionally, these devices are produced manually, which becomes time-consuming and error prone. From another point-of-view, it is possible to use imageology (X-ray or computed tomography) to scan the human body; a process that may help orthoses manufacturing but induces radiation to the patient. To overcome this great disadvantage, several types of 3D scanners, without any kind of radiation have emerged. This article describes the use of various types of scanners capable of digitizing the human body, to produce custom orthoses. Studies have shown that photogrammetry is the most used and most suitable 3D scanner for the acquisition of the human body in 3D. With this evolution of technology, it is possible to decrease the scanning time and it will be possible to introduce this technology in clinical environment.

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Section: Discussionmentioning

confidence: 99%

A Review on 3D Scanners Studies for Producing Customized Orthoses

Silva,

Fernandes

et al. 2023

Preprint

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Density-Based Topological Optimization of 3D-Printed Casts for Fracture Treatment with Freefem Software

Kokars,

Krauze,

Muiznieks

et al. 2023

Latvian Journal of Physics and Technical Sciences

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3D printed plastic casts can be used for healing bone fractures. The main requirements for these cases are: they should be light, require little printing time, have good mechanical properties, and ensure proper skin ventilation. We present a density-based topology optimization algorithm for obtaining optimal cast shapes that fulfil these requirements. The algorithm uses a linear stress model and simplified boundary conditions to model the contact problems. The cast shapes were optimized against the influence of several sharp corners. The parametric studies showed that the mass of optimized casts was reduced by 20 %–25 % in comparison with original industrial casts, and the printing time is reduced by 1.4–1.7 h for the largest cast. A major model drawback is the use of 3D numerical volume to model the density distribution. The density distribution should be homogenized across the cast layer. The overhang problem should also be addressed. We also suggest that the cast producers collect more experimental data on the cast breakages for a better calibration of the numerical model.

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A Review on 3D Scanners Studies for Producing Customized Orthoses

Silva,

Fernandes

et al. 2024

Sensors

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When a limb suffers a fracture, rupture, or dislocation, it is traditionally immobilized with plaster. This may induce discomfort in the patient, as well as excessive itching and sweating, which creates the growth of bacteria, leading to an unhygienic environment and difficulty in keeping the injury clean during treatment. Furthermore, if the plaster remains for a long period, it may cause lesions in the joints and ligaments. To overcome all of these disadvantages, orthoses have emerged as important medical devices to help patients in rehabilitation, as well as for self-care of deficiencies in clinics and daily life. Traditionally, these devices are produced manually, which is a time-consuming and error-prone method. From another point of view, it is possible to use imageology (X-ray or computed tomography) to scan the human body; a process that may help orthoses manufacturing but which induces radiation to the patient. To overcome this great disadvantage, several types of 3D scanners, without any kind of radiation, have emerged. This article describes the use of various types of scanners capable of digitizing the human body to produce custom orthoses. Studies have shown that photogrammetry is the most used and most suitable 3D scanner for the acquisition of the human body in 3D. With this evolution of technology, it is possible to decrease the scanning time and it will be possible to introduce this technology into clinical environment.

show abstract

A facile, semi-automatic protocol for the design and production of 3D printed, anatomical customized orthopedic casts for forearm fractures

Cited by 4 publications

References 11 publications

A Review on 3D Scanners Studies for Producing Customized Orthoses

A Review on 3D Scanners Studies for Producing Customized Orthoses

Density-Based Topological Optimization of 3D-Printed Casts for Fracture Treatment with Freefem Software

A Review on 3D Scanners Studies for Producing Customized Orthoses

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