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Bone fragments displacement as a determine factor of bone regenerate biomechanical properties

Filipiak J., Kuropka P., Morasiewicz L., Krawczyk A., Będziński R., Kuryszko J., Wall A.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

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2006

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z. 26

105-110

EN

We asked how bone fragment displacement could influence on callus biomechanical parameters and biological quality in bone elongation process. A distraction osteogensis 20mm by Ilizarov method was created in 21 sheep metatarsus. The bone fragments were externally fixed with a specially designed ring actuator-driven external fixator. Two experimental groups witch eight sheep each received either 1 or 2mm axial displacement of bone fragments. Mechanical stimulation was applied over 30 days for lh per day with a frequency of 1 Hz. The third group of five sheep served as a control group only bone elongation applied without actively induced displacement. Eight weeks postoperatively the sheep were killed and the elongated bones were investigated radiologically, biomechanically and histomorphologically. Biomechanical tests were determine callus flexural rigidity. Histological analysis made possible biological quality of callus evaluate.

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Wpływ wybranych metod obróbki chemicznej na właściwości struktur kostnych

Ostrowska A., Kuropka P., Będziński R., Kuryszko J.

Inżynieria Biomateriałów

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2004

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R. 7, nr 38-42

194-196

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Equine masticatory organ. P. 2 Parodontium

Łyczewska-Mazurkiewicz S., Kuryszko J., Przetocka-Wydro A., Kuropka P.

Acta of Bioengineering and Biomechanics

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2003

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Vol. 5, nr 2

37-44

EN

This paper is the second part of the study devoted to the equine masticatory organ. The masticatory organ is a morphological-functional unit associated primarily with the digestive system. It includes the teeth (described in part 1); parodontium (described in the present paper); oral mucosa, maxilla and mandible as well as some of the viscerocranial bones (the temporal and zygomatic bones). temporo-mandibular joints, muscles and oral glands. The parodontium as a part of the masticatory organ can be divided into the marginal parodontium and the apical parodontium. The marginal parodontium (parodontium marginale) involves the adjoining tissues in the region of the body of a tooth: the gingivae, periodontium, periosteum and the alveolar bones. The apical parodontium (parodontium apicale) also includes the radical cementum, despite the fact that it builds a tooth.

4

Distraction osteogenesis and fracture healing : differences and similarities

Kuryszko J., Kuropka P., Jedrzejowska I.

Acta of Bioengineering and Biomechanics

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2000

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Vol. 2, nr 2

83-88

EN

In experimental research dealing with repair osteogenesis different aspects of its course are stressed. The osteotomy type influences osteoinduction and development of blood vessels, whereas biomechanical features of bone tissue are obtained by proper stabilisation of newly formed callus. Different directions of callus evolution create their final morphology. In this paper, similarities and differences in regenerate and callus morphology are compared in detail.

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Densitometric evaluation of bone regenerate in the experimental process of distractive osteogenesis by means of the Ilizarov method

Dragan S, Wall A., Kuryszko J., Krawczyk A.

Acta of Bioengineering and Biomechanics

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1999

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Vol. 1, nr 2

107-110

EN

The paper deals with the densitometric, histological and X-ray microanalyses undertaken in order to examine the mineralization process of bone regenerate during the distractive bone osteogenesis. Testing was carried out on 20 sheep on Merynos breed whose tibiae were elongated by means of distractive osteogenesis according to the Ilizarov method. Various methods of bone cross-cutting, i.e., open and closed coricotomy, were employed.