Modular hip prosthesis.

摘要

A modular hip prosthesis can be custom fitted to a particular patient by a surgeon prior to surgical insertion comprising (i) a prosthesis a body having a neck portion for carrying a rounded head element, a transitional mid-section of the prosthesis body and a stem section and (ii) means attachable to the prosthesis body to adjust and maintain the prosthesis in load bearing engagement with the femur. A tubular extension sleeve to the stem may have an open end portion to receive the stem body. The stem may also include an integral bore, and an attachment in the form of an elonagated screw is provided for connection to the stem internal bore for securing the extension sleeve and the prosthesis body together, forming a compressive sealed connection therebetween. Pads can be attached to the transitional mid-section of the prosthesis body for increasing the cross-sectional shape of the prosthesis at the transitional mid-section. Removable collars can be added to the prosthesis to form a transverse load carrying interface with the upper end of the patient's femur. Frustro-conically shaped extension sleeves can be added to the prosthesis neck for extending the neck length.