Tapered polished MultiFitTM cemented stem designed to decrease stress shielding of proximal femur and to increase rotational stability with comparative assessment by finite element analysis.
The Stem due to its cross section of the neck geometry being track formation achieves maximum range of motion.
The cement stem is composed of Co-Cr alloy with sound biomechanical designed neck shaft angle formulating 132 degrees. It is also designed to have anatomical medial curve within the neck.
The cement collarless stem has overall highly polished surface that minimizes friction between the stem surface and cement. Also the triple taper, which is wedge shape, reduces shear stress and tensile hoop stress.
This provides reduction in stress shielding and subsidence and promote rotation stability with excellent self-locking