EXACTA RS stem

EXACTA RS stem

Category: Permedica Orthopedics

INTENDED PURPOSE:

the EXACTA stems are intended for use in total or partial RS 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. Device fixation is obtained by means of primary cementless press-fit stabilization.


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).


EXACTA-RS


                                           

12  implant Sizes


STANDARD (ccd 132°)
LATERAL (ccd 132°) offset 6mm

Taper

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


Neck

Reduced section to optimize ROM. Mirror polished finishing to minimize wear on UHMWPE joint liner.

Stability

Horizontal grooves in the proximal portion for improved axial stability.


Bio-active coating

The HaX-Pore® double coating of porous Titanium and hydroxyaopatite applied with plasma spray technique in the metaphyseal region guarantees an optimal primary fixation and encourages osteoblast colonization thus promoting biological integration.


Distal tip

The tapered design and the glossy finishing avoid load concentration on the femoral cortex thus postoperative thigh pain.










Design

The triple tapered design (frontal, coronal and sagittal) supports axial and rotational stability favoring load distribution in the metaphyseal region.

The progressive growth of the neck proportional to the stem size allows for a better restoration of the natural anatomy.

The anatomical curvature and the optimized dimensions allow an easy introduction even with minimally invasive techniques or with anterior access, as well as a limited bone sacrifice.