Autor: Jędrusik-Pawłowska, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Computer assessment of correctness of mandiblar bones fracture slit integration based on pantomographic radiograms
Autorzy:: Lamża, A.
Wróbel, Z.
Jędrusik-Pawłowska, M.
Drugacz, J.
Powiązania:: https://bibliotekanauki.pl/articles/333660.pdf
Data publikacji:: 2002
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: zdjęcia pantomograficzne
minipłytki
osteosynteza
względny współczynnik przemieszczenia odłamów
pantomographic radiograms
miniplate
osteosynthesis
relative faction dislocation coefficient
Opis:: The method of objective assessment of the correctness mandible bones fracture slit was proposed in the research. At present, treatment results are evaluated by comparing pantomographic pictures made before and after integration. It is not an objective method; the estimation of the integration correctness coefficient is not possible, either. The use of computer processing enables introducing the relative mandible faction dislocation coefficient. Thanks to this, measurable determination of bone faction reposition correctness on pantomograms made after osteosynthesis is possible.
Źródło:: Journal of Medical Informatics & Technologies; 2002, 4; MT119-124
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Assessment of the results of mandibular fractures sugrical titanium miniplates treatment on the basis of computer-aided analysis of pantomographical radiograms
Autorzy:: Jędrusik-Pawłowska, M.
Drugacz, J.
Lamża, A.
Wróbel, Z.
Powiązania:: https://bibliotekanauki.pl/articles/333670.pdf
Data publikacji:: 2002
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: zdjęcia pantomograficzne
osteosynteza
pomiary wspomagane komputerowo
zwichnięcia kości
pantomographical radiograms
osteosynthesis
computer-aided measurement
bones dislocation
Opis:: At present, in mandibular fractures surgical treatment reposition and titanium miniplates osteosynthesis is the most common method used. The treatment results are assessed on the basis of comparative analysis of two radiograms taken before and after fixations of fractures. In this article the objective method of radiological assessment of osteosynthesis is presented. The crucial part of the method is the computer program which was created at The Institute of Computer Biomedical Systems, Silesian University in Katowice. Comparison of placement of bone fragments on a pair of pantomograms taken before and after a particular surgical operation was done. To make the process of the results evaluation an objective one a new parameter - the relative dislocation coefficient - was implemented. Achieved results enable to assess correctness of bone fracture reposition on the pantomographical pictures taken twice, once before and the next time after osteosynthesis.
Źródło:: Journal of Medical Informatics & Technologies; 2002, 4; MT83-89
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Mandibular reconstruction : biomechanical strength analysis (FEM) based on a retrospective clinical analysis of selected patients
Autorzy:: Jędrusik-Pawłowska, M.
Kromka-Szydek, M.
Katra, M.
Niedzielska, I.
Powiązania:: https://bibliotekanauki.pl/articles/306994.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: bone grafts
mandibular reconstruction
finite element method
reconstruction plates
bone healing
kości
metoda elementów skończonych
przeszczep kostny
Opis:: Restoration of mandible discontinuity defects continues as a challenge for maxillofacial surgeons. Despite the development of algorithms for reconstruction plates fixation and autogenous grafting techniques, complications are still encountered including screw loosening, bone resorption or delayed/incomplete union. The aim of the study was to analyze the possibility of obtaining bone union in the aspect of biomechanical conditions of two mandible reconstructions using an autogenous iliac crest bone graft stabilized with a reconstruction plate, and to attempt to predict patient outcomes based on strength parameters obtained by the finite element analysis. The authors of the present paper were trying to determine to what extent the reconstruction model and changes occurring in hard tissues of the bone and autogenous graft (simulated by changes in material properties) might help predict individual patient courses. The effort of reconstruction plates was defined using the values of the von Mises stress (σHMH) while the effort of bones was determined based on the values of strain intensity εint. The results of the above mentioned simulations are presented in the form of bar graphs and strain/stress distribution maps. Our strength analyses indicate that uncomplicated healing of grafts fixed with reconstruction plates requires that the initial loading of the stomatognatic system should not result in strain intensity exceeding 20–40 [×10–4]. This range of strain intensity evokes an increase in the mineral phase. The state of nonunion between the mandibular bone and the graft might result from prolonged periods of insufficient loading of the mandible during treatment.
Źródło:: Acta of Bioengineering and Biomechanics; 2013, 15, 2; 23-31
1509-409X
2450-6303
Pojawia się w:: Acta of Bioengineering and Biomechanics
Dostawca treści:: Biblioteka Nauki

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