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Leader Stem

POROUS COATING

The Leader Stem encourages osseointegration and bone in-growth with a successful and well-established surface treatment. The entire proximal portion of the implant is porous-coated with titanium micro­spheres to promote host bone in-growth.

RIBS

The Leader Stem has been designed with a series of well-defined proximal ribs to increase the fixation and stability in the femur. It has an optimal number of ribs to handle the stress imparted by the rotational and torsional forces yet still allow for the implant to be safely removed, if necessary.

Grit blasted diaphyseal region achieves bone ongrowth and implant fixation.

DISTAL TIP REDUCTION

The Leader Stem’s increased proximal fixation allows for a reduction in the distal portion of the implant. Vadin recognizes a long distal tip may cause stress shielding and severe thigh pain. By reducing the distal tip can help to alleviate these problems when combined with a compact implant. With a shorter implant we can decrease the overall impact on the patient.

MATERIALS

The Leader Hip Stem is manufactured from titanium Ti6Al4V alloy. Titanium has been used in load-bearing biomedical applications for over 50 years. This material is known to have high strength, optical density, excellent biocompability and a low modulus of elasticity compared to other implant metals.   The strength of titanium gives it the ability to withstand the high stresses applied across the hip joint. The low density significantly decreases the weight of the Leader Hip Stem when compared to the other implants. Titanium is classified as a biologically inert material. Titanium’s comparatively low modulus of elasticity is more in-line with that of bone allowing the implant to behave more like bone and reduce stress shielding and atrophy.