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PERFECTIONNEMENTS APPORTÉS OU SE RAPPORTANT À UNE PROTHÈSE DE TÊTE DE RESURFAÇAGE FÉMORALE EN CÉRAMIQUE
PERFECTIONNEMENTS APPORTÉS OU SE RAPPORTANT À UNE PROTHÈSE DE TÊTE DE RESURFAÇAGE FÉMORALE EN CÉRAMIQUE
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摘要
A ceramic femoral resurfacing head prosthesis (110) comprises a ceramic convex outer contact surface (112) engagable with an acetabulum of a patient or an acetabular cup prosthesis and a concave inner fixation surface (114) having an inner-land portion (128), the ceramic convex outer contact surface (112) and the concave inner fixation surface (114) extending to intersect each other at a rim (116). A ceramic stem (120) projects from the concave inner fixation surface (114), and is adapted to be received by a stem bore. The concave inner fixation surface (114) includes a skirt (134) which is cylindrical or substantially cylindrical, or frusto-conical or substantially frusto-conical, and at least one circumferentially elongate recess (136) at the skirt (134).
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