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PBF Femoral Stem System

PBF Femoral Stem System

Category: Permedica Orthopedics

INTENDED PURPOSE:

PBF stems are 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 for primary hip arthroplasties in cases of serious joint degeneration, mainly due to arthrosis and posttraumatic degenerative factors, where cortical bone structure is suitable to guarantee a correct and enduring mechanical fixation by means of press-fit technique. Device fixation is obtained by means of primary cementless press-fit stabilization and long term biological integration.


MATERIALS:

            Titanium Aluminium Niobium forged alloy (Ti6Al7Nb) 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).

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PBF Cementless stem


PBF are straight stems with conical profile both in the frontal

and in the sagittal plane thus ensuring optimal fit and fill of the femoral canal.


The rectangular cross-section gives to the implant a relevant

primary stability.


Taper

12/14 (top angle 5°42'30")


BIOLOX approved Reduced neck diameter for improved ROM


Microstructured surface roughness

ra ± 4-6μm


Tapered distal end to avoid localized stress

and thigh pain.







PBF REVISION Stem


9 sizes



Average length 30mm Longer then the corresponding size of primary stem.



Slotted distal tip to avoid stress shielding in the diaphyseal region.