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1 Acta of Bioengineering and Biomechanics

1 1999

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Experimental analysis of external fixators for femoral bone elongation

Będziński R., Filipiak J.

Acta of Bioengineering and Biomechanics

1999

Vol. 1, nr 2

91-105

The purposes of this study were to analyse the stability of the system formed by the Ilizarov fixator and the thigh being elongated. The research was conducted under laboratory (tests on physical models) and clinical (tests on real objects) conditions during the process of the elongation of the femur bone. The aim of the laboratory investigation was to determine the displacement of the bone fragments as a function of the external load and construction of the fixator. The aim of the clinical study on real objects was to determine the state of the load acting on the particular supported rods of the fixator and its changes during elongation of the lower limb in the thigh section. The investigations have demonstrated that the stability of system: the Ilizarov fixator-the thigh being elongated is a function of the mechanical properties of the adapted fixator structure and the forces acting on this system. Optimal spatial configuration of the fixator must be selected for the particular course of treatment.