Enhance
your options
Over the years hip arthroplasty has had to adapt to patients living longer and a greater variety of needs. Stability, load, stress distribution and respect for anatomic structures are critical to the success of any press-fit cup implantation.
The Versafitcup CC Trio is the latest development in the Versafitcup System, which offers a complete product range for any requirement.
Following on from Versafitcup CC and CC Light (60,000+ implanted since 2004 with excellent clinical results [1]) the Versafitcup CC Trio has the same external characteristics but with additional benefits.
The Versafitcup CC Trio inner shell has been re-styled to accommodate the use of larger heads to best meet the needs of patients and surgeons and restore biomechanics. The Versafitcup CC Trio is also available without lateral screw holes - Versafitcup CC Trio No-Hole. Together these form the Versafitcup CC Trio Family.
Use the elliptical pressfit!
The elliptical shape of the cup guarantees an adequate press-fit on the equatorial region, enhancing primary stability.
Use an effective locking mechanism!
Mechanical studies demonstrate that the Versafitcup CC Trio clipping system optimises the rotational stability of UHMWPE liners[2] and minimises stresses in the equatorial area[3].
Use the 5° upper edge!
The 5° upper edge augments the coverage also in case of ceramic liners and decreases the risk of edge loading.
Use a larger head!
Published documents describe the advantages of using larger heads to augment ROM and prevent dislocation. In cases of ceramic bearing it is possible to use a 36mm head with acetabular shells from size 50 and a 40mm head from size 56! [4]
Use the options!
VERSAFITCUP CC TRIO NO-HOLE
Versafitcup CC Trio No-Hole shares the same geometry, material, coating and liner coupling as the Versafitcup CC Trio but without the lateral screw holes.
Both shells can be used with UHMWPE, Highcross UHMWPE and Ceramic liners. The lateral screw holes of the Versafitcup CC Trio offer the ability to increase fixation using flat head cancellous bone screws.
The elliptical shape with polar flattening provides gradual load transfer avoiding stress peaks and ensuring a good primary stability.
The equatorial macrostructures are 0.7 mm diameter circular retaining splines which increase the contact between the implant and the bone by 30 to 40%.
The shell has an optimised thickness that guarantees the use of big heads avoiding the risk of shell deformation[4].
A 5° upper edge provides additional coverage for antiluxation purpose.
This upper edge allows additional coverage also with ceramic bearing.
The locking mechanism of the UHMWPE liners is composed of:
A clipping system[3] placed out of the equatorial weight bearing area and in correspondence to the thickest region of the UHMWPE liner. This design minimises stresses at the liner-shell interface and avoids the fracture of the liner rim should impingement occur.
A multiple teeth crown[2] which minimises rotation and micromovements preventing backside wear.
For lateral hole fixation of the Versafitcup CC Trio, titanium alloy, flat head, cancellous bone screws ø 6.5 mm (20 to 45 mm long) are available. For both Versafitcup CC Trio & Versafitcup CC Trio No-Hole versions a metallic plug can be used to close the central hole.
Both Versafitcup CC Trio and Versafitcup CC Trio No-Hole shells are made of Titanium Vanadium alloy.
The surface treatment consists of:
Ti Coating, thickness 100μm.
HA (Hydroxyapatite) coating, thickness 90 μm.
Ceramic liners are made of BIOLOX delta by CeramTec.
Polyethylene liners are available in UHMWPE and Highcross (cross-linked UHMWPE by Medacta), both in standard and 10° hooded versions.
The Versafitcup CC Trio is the latest development in the Versafitcup system, a complete system of elliptical press-fit cups that share the same instrumentation.
The system includes press-fit cups both with and without screw holes (Versafitcup CC Trio No-Hole) alongside the Versafitcup Double Mobility.
Versafitcup Double Mobility is a suitable alternative to Ceramic-on-Ceramic and Metal-on-Metal large heads due to the following:
The anterior approach, strengthened by several years of clinical experience, is the only technique which follows a path both intermuscular and internervous and therefore reduces considerably the risk of damaging periarticular structures such as muscles, tendons, vessels and nerves.
Medacta International is the world leader for educating and supporting surgeons in their pursuit of Anterior Minimally Invasive Surgery (AMIS). Reference Centers, located throughout the world, provide the necessary AMIS educational experience and Medacta offers continuous support for surgeons, as well as constantly improving and developing the industries most specialized instrumentation platform.
Using Versafitcup CC Trio you can enter Medacta International’s world of AMIS!
Discover:
[1] Müller DA, Zingg P, Dora C, 5 year survival and radiological outcome of minimally invasive total hip replacements using a relatively new implant (Quadra/Versafitcup, Medacta, Switzerland), SGO 2011, 22th-24th June, Lausanne
[2] Spadini E et al., Is backside wear a real issue in modern design cups?, M.O.R.E. Journal, May 2011; Vol.1: 12-14
[3] Michael DR, MD, Review of the Evolution of the Cementless Acetabular Cup, ORTHOSuperSite December 1, 2008
[4] Camesasca S et al., Analysis of Versafitcup CC Trio acetabular shell deformation during impaction, M.O.R.E. Journal, May 2011; Vol.1: 15-18
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