FEMUR COMPONENT FOR A HIP ENDOPROSTHESIS

摘要

The invention relates to a femur component for a hip endoprosthesis which comprises A) a distal end designed to be introduced into the medullary space of the femur (1); B) a proximal shoulder part (2) with a medially oriented neck (3) to which a spherical head can be attached; C) a shank part (4), situated between the shoulder part (2) and the end (1), which narrows wedge- like towards the end (1), has a longitudinal axis (5), a length L and a half wedge angle .beta./2 measured in the symmetry plane (10) of the femur component; and D) a slit (6) arranged in the distal region (8) of the shank part (4) which is open towards the end (1). The slit (6) has a length betwee n 0.21 L and 0.50 L and an opening angle .alpha. of between 1~ and 4~. The fac t that the femur component is fixed in the medullary space by means of the sli t (6) has the advantage that possible microscopic tilting movements of the sha nk implanted in the medullary cavity remain minimal and the desired primary stabilization is achieved.