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Twinsys Uncemented
Stem system.
Same instrumentation for implantation of the cemented and uncemented stems
Triply conical design to convert shear forces into compressive forces and achieve good primary stability [1]
Proximal rib structure with the aim of reducing postoperative subsidence [1]
About
The basic design of the twinSys stem system is based on the straight-stem prosthesis concept by Prof. Maurice E. Müller. The twinSys system has been distributed since 2003 with the aim of enabling surgeons to perform cemented and uncemented implan-tation with a single instrumentation.
The uncemented twinSys stem is a straight monoblock prosthesis available in XS, Standard, Lateral and Long versions. It has a triply conical stem geometry and a pronounced proximal rib structure to counteract forces acting axially on the stem. The stem design strives to achieve primary pressfit anchoring in the proximal cancellous bone. Data from a study conducted specifically to this end show that the twinSys stem design reduces the risk of postoperative subsidence and provides secondary stability.
The selected cross-sectional geometry increases the stability of the implant against rotational forces acting on it [1]. In order to counteract premature distal stem locking and reduce the risk of femoral pain, the stem is provided with a tapered distal prosthesis tip.
Using the plasma spray process, a hydroxyapatite coating is applied to the corundum-blasted surface in order to support osseointegration of the implant into the bone.
+ Support of osseointegration by the hydroxyapatite coating [2]
+ 7 A* ODEP Rating [3]
eIFU-Mathys and further documents available here
[1] Clauss, M., et al., Prospective five-year subsidence analysis of a cementless fully hydroxyapatite-coated femoral hip arthroplasty component. Hip Int, 2014. 24(1): p. 91-7.
[2] Wintermantel E. and Ha S.W. Medizintechnik, Life Science Engineering. Book, 2009. 5. Auflage.
[3] Latest ODEP ratings can be found at www.odep.org.uk.
Twinsys uncemented detail of the neck
Twinsys uncemented detail of the neck
Twinsys coating
Resources
Product manufactured by Mathys Ltd Bettlach.
This product may not be compatible with other medical devices. Consult a healthcare professional before use. The manufacturer is not responsible for adverse outcomes if the product is used in situations where compatibility is not ensured. Please refer to IFU for further indications. .
Please note that not all products are available and registered in every market. Please contact your Enovis’ Sales Representative for any further information.
Mathys Ltd Bettlach and Limacorporate S.p.A. are affiliates of Enovis Corporation.
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