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Zastosowanie systemów komputerowo wspomagających projektowanie w procesach planowania zabiegów chirurgicznych w obrębie obszaru żuchwy

Turek Paweł, Skowron Natalia

Przegląd Mechaniczny

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2021

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nr 3

31--35

PL

W artykule przedstawiono obecne możliwości w zakresie projektowania oraz wytwarzania modeli struktur anatomicznych, szablonów chirurgicznych oraz implantów do planowania zabiegów chirurgicznych w obrębie obszaru żuchwy. W pierwszym etapie przedstawiono proces rekonstrukcji 3D geometrii żuchwy przy użyciu oprogramowania 3D-Slicer 4.8.1. Kolejny etap procesu polegał na cyfrowym odtworzeniu ciągłości geometrii żuchwy w miejscu wystąpienia złamania. Proces ten przeprowadzono w środowisku Meshmixer. Następnie zamodelowano geometrię płytek chirurgicznych w oprogramowaniu CATIA V5R20. Ostatni etap polegał na wykonaniu metodą przyrostową FDM modelu struktury anatomicznej żuchwy sprzed wystąpienia urazu oraz płytek chirurgicznych, które posłużyły do planowania zabiegu otworzenia ciągłości geometrii żuchwy w miejscu wystąpienia złamania.

EN

The article presents the current possibilities of designing and manufacturing models of anatomical structures, templates and implants for planning surgical procedures within the mandibular area. The first stage presented the process of 3D reconstruction of the mandible geometry using the 3D-Slicer 4.8.1 software. The next step in the process was to digitally reconstruct the continuity of the mandible geometry in the area of fracture. This process was performed in the Meshmixer software. Then, the geometry of the surgical plates was modeled in CATIA V5R20 software. The last stage presented manufacturing process of the anatomical structure of the mandible before the injury, and surgical plates using FDM technology. The final models were used to plan the procedure within the mandibular area.

2

Additive manufacturing methods, materials and medical applications - the review

Laskowska Dorota, Mitura Katarzyna, Ziółkowska Ewa, Bałasz Błażej

Journal of Mechanical and Energy Engineering

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2021

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Vol. 5, No 1

15--29

EN

The aim of the additive manufacturing (AM) is a production of physical objects by adding material layer-by-layer based on virtual geometry developed in the computer system. The main criteria for the division of additive manufacturing methods are the way to apply the layer and the type of construction material. In most projects, the choice of method is a compromise between costs and properties (e.g. physical, chemical or mechanical) of the manufactured object. Currently, AM methods have found application in many areas of life, including industrial design, automotive, aerospace, architecture, jewellery, medicine and veterinary medicine, bringing many innovative and revolutionary solutions. The purpose of this article is to review of the additive production methods and present the potential of medical application.

3

Expandable endoprosthesis for growing patients - Reliability and research

Borkowski P., Skalski K.

Biocybernetics and Biomedical Engineering

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2014

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Vol. 34, no. 4

199--205

EN

Nowadays expandable endoprosthesis for growing children is an alternative to amputation in the course of surgical treatment. Modern non-invasive endoprosthesis gives the possibility of elongation without a surgical operation. In the paper, the results of research with the application of computer technique in geometrical modelling are presented, as well as the design and manufacture in processing the medical images and experimental studies during an initial estimation of a new expandable prosthesis construction for growing patients, which will lead to the preparation for production and implantation processes in Poland.

4

Biomechanical aspects of preoperative planning of skull correction in children with craniosynostosis

Larysz D., Wolański W., Kawlewska E., Mandera M., Gzik M.

Acta of Bioengineering and Biomechanics

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2012

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Vol. 14, no. 2

19-26

EN

Craniosynostosis is a birth defect that causes one or more sutures on a baby's head to close earlier than normal. In effect the growing brain determines an abnormal skull shape and, which is more important and more dangerous, it causes an elevated intracranial pressure. The only treatment for children with craniosynostosis is surgical cranioplasty. More extensive procedures yield excellent results, particularly in older children with moderate to severe deformity. However, in children undergoing more extensive reconstructions an essential requirement is blood transfusion. They are also put at risk of complications. In this paper, the authors propose a method of preoperative planning based on three-dimensional modelling and biomechanical investigations. We used Mimics, 3-matic and ANSYS software for the process. The proposed preoperative planning improved the preoperative knowledge of deformation, shortened the time of surgery, and subsequently reduced blood loss during the procedure.

5

Rola tomografii komputerowej w wirtualnym planowaniu zabiegów implantologicznych w stomatologii

Wojciechowski W., Urbanik A.

Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna

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2012

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Vol. 18, nr 1

31-34

PL

Prawidłowo zaplanowane badanie za pomocą tomografii komputerowej (TK) gwarantuje odpowiednią jakość trójwymiarowych obrazów szczęki lub żuchwy, a następnie poprawność zabiegu implantologicznego. Celem pracy jest przedstawienie roli badania TK w wirtualnym planowaniu zabiegów implantologicznych w stomatologii. Zastosowanie techniki podwójnego skanu TK pozwala na wirtualne zaplanowanie zabiegu implantologicznego, a następnie poprawne przeprowadzenie zabiegu wszczepienia implantów.

EN

The correctly performed CT (Computed Tomography) examination guarantees the adequate quality of three-dimensional (3D) reconstructions of the maxilla or mandible and subsequently the virtual planning of dental implant placement. The aim of the study was to explain the role of the computed tomography scanning in the virtual planning of dental implant placement. The application of double CT scans enables the virtual planning of dental implant placement, and proper implantation procedure.

6

Morphological analysis of the skull shape in craniosynostosis

Tajszerska D., Wolański W., Larysz D., Gzik M., Sacha E.

Acta of Bioengineering and Biomechanics

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2011

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Vol. 13, no. 1

35-40

EN

Craniosynostosis represents premature suture fusion of the fetal and neonatal skull. Pathogenesis of craniosynostosis is complex and probably multifactorial. Growth of skull bones is strictly connected with the expanding growth of the brain and cranial malformations or prematurely fused sutures cause abnormal head shape. In order to diagnose the craniosynostosis, physical examination, plain radiography, and computed tomography with 3D reconstructions are indispensable. Engineering software such as Mimics v.13.1 and 3-matic v.5.0 enables a 3-dimensional model of head to be generated, based on the pictures obtained from CT. It is also possible to indicate the distances between the characteristic anatomical points. These measures are helpful during planning the neurosurgical correction of the skull, because the possibility of strictly specifing incisions before surgery, which is very important to provide the maximal safety of a child.

7

Preoperative planning and intraoperative navigation in the reconstructive craniofacial surgery

Król Z., Chapuis J., Schwenzer-Zimmerer K., Langlotz F., Zeilhofer H.-F.

Journal of Medical Informatics & Technologies

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2005

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Vol. 9

83--89

EN

We present a methodology for navigation-aided surgical treatments in the reconstructive craniofacial surgery. Using the case of zygomatic bone repositioning after gunshot wound trauma the whole preoperative planning process and the intra-operative navigation oriented issues are explicitly described. We have focused our attention on the new navigation oriented aspects and procedures which facilitate and enhance the traditional treatment techniques. Many illustrations let better understand the complex technical dependencies between the main elements of this approach. The presented procedures permit more precise planning and performing of the surgical treatment, reducing intra-operative time and improving the post-operative outcome.

8

System for 3D localisation of malformations in the human brain

Ostergaard L. R., Lind J., Larsen O. V., Nielsen H., Bartholdy N. J., Haase J.

Machine Graphics and Vision

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1998

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Vol. 7, No. 1/2

159-167

EN

A 3D localisation system for pre-operating planning is presented. The developed localisation system is able to estimate the 3D position of a target, e.g. an AVM (Arterio-Venous Malformation), based on a set of digital X-ray images. Distortion correction and camera calibrations is performed in order to obtain accurate 3D estimates. The system is tested on a plexiglass phantom with embedded steel pellets offering 126 test points with known 3D positions. The test has shown that the system is able to estimate 3D positions with a mean error of 0.33 mm and a maximum error of 1.18 mm. The required accuracy is 0.16 mm and the test showed that more than 90% of the 3D position estimates fulfilthis requirement.