Abstract:The study of any cementless hip system is essentially based on three concepts: initial stability, secondary biological stability and factors regarding the reliability of this stability. Initial Stability relies on optimal bone fill with press-fit support on the cortical bone. For the acetabular component, this is best achieved with a hemispherical form. Femoral support is assured by a triple cortical contact in the metaphyseal zone. A triple support requires a stem with a sagittal bow. Secondary stability mu… Show more
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