Computer aided stereometric evaluation of porostructural-osteoconductive properties of intra-osseous implant porous coatings

• Autorzy: Uklejewski R. , Winiecki M. , Rogala P.
• Języki publikacji: EN

Abstrakty

EN

The proper interaction of bone tissue - the natural porous biomaterial - with a porous coated intra-osseous implant is conditioned, among others, by the implant porous coating poroaccessibility for bone tissue adaptive ingrowth. The poroaccessibility is the ability of implant porous coating outer layer to accommodate the ingrowing bone tissue filling in its pore space and effective new formed bone mineralizing in the pores to form a biomechanically functional bone-implant fixation. The functional features of the microtopography of intra-osseous implant porous surfaces together with the porosity of pore space of the outer layer of the porous coating are called by bioengineers the porostructural-osteoconductive properties of the porous coated implant. The properties are crucial for successful adaptive bone tissue ingrowth and further long-term (secondary) biomechanical stability of the boneimplant interface. The poroaccessibility of intra-osseous implants porous coating outer layers is characterized by - the introduced in our previous papers - set of stereometric parameters of poroaccessibility: the effective volumetric porosity φ_Vef, the index of the porous coating space capacity V_PM, the representative surface porosity φ_Srep, the representative pore size p_Srep, the representative angle of the poroaccessibility Ω_rep and the bone-implant interface adhesive surface enlargement index ψ. Presented in this paper, an original method of evaluation of the porostructural-osteoconductive properties of intra-osseous implant porous coatings outer layer by means of the parameters of poroaccessibility was preliminary verified during experimental tests performed on the representative examples of porous coated femoral stems and acetabular cups of various hip endoprostheses. The computer-aided stereometric evaluation of the microstructure of implant porous coatings outer layer can be now realized by the authoring application software PoroAccess_1.0 elaborated in our research team in Java programming language.

Słowa kluczowe

EN

surface topography; porous coating characterization; poroaccessibility; 3D measurement

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2013
• Tom: Vol. 20, nr 3
• Strony: 431--442
• Opis fizyczny: Bibliogr. 28 poz., rys., tab., wykr.

Twórcy

autor

Uklejewski R.

• Department of Medical Bioengineering Fundamentals, Institute of Technology, Casimir the Great University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
• Laboratory of Biomaterials and Bioprocesses Engineering, Department of Process Engineering, Institute of Technology and Chemical Engineering, Poznan University of Technology, Marii Sklodowskiej-Curie 2, 60-965 Poznan, Poland

autor

Winiecki M.

• Department of Medical Bioengineering Fundamentals, Institute of Technology, Casimir the Great University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
• Laboratory of Biomaterials and Bioprocesses Engineering, Department of Process Engineering, Institute of Technology and Chemical Engineering, Poznan University of Technology, Marii Sklodowskiej-Curie 2, 60-965 Poznan, Poland

autor

Rogala P.

• Department of Spine Surgery, Oncologic Orthopaedics and Traumatology, Poznan University of Medical Sciences, 28 Czerwca 1956 N° 135/147, 61-545 Poznan, Poland

Bibliografia

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Uwagi

EN

This research was supported by the Polish Ministry of Science by research project no 4T07C05629 (2005-2008): “Experimental investigation and design of the constructional properties of bone-porous implants fixations” and the research project no NN518412638 (2010-2014): “The optimization of the manufacturing directives and the termochemical surface modification of prototypes of the minimally invasive RHA endoprostheses and porous bone implants” (Head of the projects: R. Uklejewski).