Influence of pedicle screw design on the screw-vertebra joint durability

• Autorzy: Filipiak J. , Pezowicz C. , Szarek W.
• Języki publikacji: EN

Abstrakty

EN

The present paper discusses some issues relating to the use of transpedicular spinal fixators. The authors evaluated the pull-out strenght of transpedicular screw in the vertebrae with respect to geometrical parameters of the transpedicular screw. The analyses were carried out on cadaver lumbar and thoracic vertebrae. All biomechanical tests used a material testing machine (MTS 858 MiniBionix). The results of the study demonstrate significance of geometrical parametrs of transpedicular screws for the durability of the screw-vertebra interface. The obtained results also confirm that diameters of the screw and pedicle must be carefully matched in order to ensure good performance of the vertebra and pedicle screw unit.

Słowa kluczowe

EN

biomechanics; transpedicular screw; strength analysis

PL

biomechanika; analiza wytrzymałościowa; śruba transpedikularna

• Wydawca: Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences ; Elsevier
• Czasopismo: Biocybernetics and Biomedical Engineering
• Rocznik: 2004
• Tom: Vol. 24, no. 4
• Strony: 43--52
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Filipiak J.

• Division of Biomedical Engineering and Experimental Mechanics Wrocław University of Technology, ul. Łukasiewicza 7/9, 50-370 Wrocław, Poland

autor

Pezowicz C.

• Division of Biomedical Engineering and Experimental Mechanics Wrocław University of Technology, ul. Łukasiewicza 7/9, 50-370 Wrocław, Poland

autor

Szarek W.

• Departament of Neurosurgery, Wrocław Medical University, Poland

Bibliografia

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