PROMISE-S Femoral Stem

PROMISE-S Femoral Stem

Category: Permedica Orthopedics

INTENDED PURPOSE:

PROMISE S is a short anatomical stem intended for use in total or partial Hip Replacement procedures, combined with a femoral ball head (or a bi-articular head) and an acetabular cup. Indicated in those cases where the degenerative pathology dose not involve the femoral neck, i.e. avascular necrosis of the femoral head, femoral head fractures (at the base of the head, not involving the neck) and/or early stage arthrosis. Device fixation is obtained by means of primary cementless press-fit stabilization or by using bone cement, depending on the version utilized.


MATERIALS:

                STEMS: Titanium Aluminium Niobium (Ti6Al7Nb) forged alloy- ISO5832/11


STERILIZATION:

                Method: Irradiation (Beta or Gamma rays - nominal dose 25 kGy) or vaporized Hydrogen Peroxide (VH2O2).

                Validity: 5 years (Beta) - 10 years (Gamma-VH2O2).



Product Information


Bone sparing


The PROMISE S stem is characterized by an anatomical shape and reduced dimensions thus allowing a minimally invasive approach, preservation of the femoral neck and minimal bone sacrifice in the metaphyseal region.


Physiological load bearing support

The anatomy of the femoral neck and the aspect of the force lines in the calcar region demonstrate an extremely resistant structure with an elevated load bearing capacity. And due to the angled position of the femoral neck, its preservation stabilizes the stem thus avoiding torsion movements.





PROMISE S HaX-Pore

Cementless stem


7 Anatomical sizes


Taper

12/14 (top angle 5°42'30") BIOLOX approved




HaX-pore

Surface coated with 500μm of pure Titanium and 40μm of hydroxyapatite, applied with plasma-spray technique in order to obtain good primary stability and encourage osteoblast growth.














PROMISE S Plus

Cemented stem





Taper

12/14 (top angle 5°42'30") BIOLOX approved



Mirror polished surface to enhance bone cement contact.