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ACORN

ACORN

Category: Permedica Orthopedics

INTENDED PURPOSE:

ACORN dual mobility cup is an acetabular component utilized in Total Hip Replacement procedures in combination with it’s dedicate articular liner, a femoral ball-head and a femoral stem. It is indicated in cases of coxarthrosis, both for primary and/or revisions. Due to it’s characteristics, the dual mobility cup is pasrticularly indicated in those cases with low muscle tone where, by using traditional cups, dislocation phenomena could occur. Anchoring of the device is achieved by primary press-fit insertion or by means of bone cement, depending on the model used.


MATERIALS:

                CUP: highly nitrogenized stainless steel forged alloy - ISO5832/9.

                INSERT: Ultra High Molecular Weight Polyethylene without Calcium Stearate - ISO5834/1/2. Also available in VITAL-E® version, UHMWPE added with Vitamin-E (Alpha Tocopherol) anti-oxydant and VITAL-XE® (cross-linked)

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Product Information

ACORN

Dual Mobility Cup


The concept of dual mobility involves the use of a metal shell within which articulates a mobile insert, of a diameter perfectly compatible, where the femaral ball head articulates as well.


First introduced in the ‘70s by Prof. Bousquet, this type of implant has demonstrated in clinical use high joint stability even in the most critical cases.











14 Implant sizes


Available in cementless and cemented version, also with BIOLOY® anti-allergic coating.







The cup has an hemispherical geometry with polar deflection and circumferential radial grooves to guarantee optimal press-fit in the equatorial region.

HaX-Pore® pure Titanium and Hydroxyapatite coated surface to enhance primary stability and promote biological integration.

The presence of a 10° protruded rim allows for a better coverage in the cranial region.








The articular inserts available for Ø 22mm and 28mm ball heads are designed to perfectly match the inner socket of each single size of the cup, thus ensuring maximum joint stability.


They are manufactured with the latest generation Ultra High Molecular Weight PE (GUR1020) without Calcium Stearate, also in VITAL-E® and VITAL-XE® option enriched with Vitamin E antioxidant.