engleski

Osteometric and biomechanic analysis of the proximal femur relevant in designing a Croatian model of the hip joint endoprosthesis

We studied the specific characteristics of the proximal femur in patients with coxarthrosis using osteometric and biomechanic analysis in order to get "standard femur" in our population, relevant for designing Croatian model of hip joint endoprosthesis. The investigations included 454 antero-posterior radiographs of the hip joint and upper femur in patients with coxarthrosis. We measured thickness of medial and lateral cortex, lateromedial diametar of medullar canal and subperiostal diametar of the femur body with exactness of 1 mm by using specially designed scheme with sixteen measure levels. First level of measurement was the section surface, which is performed in the case of the total hip joint implantation. Surfaces of the transversal sections of the femur and medullar canal were calculated by using mathematic formulas. Using morphometric method in investigation we got standard values of the upper femur in frontal plane and surfaces of transversal sections of the femur body and medullar canal in our population. These results can undoubtedly contribute in designing Croatian model of hip joint endoprosthesis.

endoprosthesis; coxarthrosis; hip joint; standard femur

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