Why did you develop the R3 system?
The R3 system was designed to address today's active patient's needs by providing you flexibility to tailor the implant to each patient's requirements. The R3 system was also designed for the needs of tomorrow's patient with a universal shell that can accommodate future bearings and fixation options.
How is the poly lock different than the REFLECTION◊ system?
The R3 shells were designed with a taper in order to accommodate hard bearings. Due to the challenges that soft tissue and osteophytes may present, the axial poly lock was located further inside the shell and locks in two grooves around the circumference of the shell. There are also 12 anti-rotational tabs that engage around the rim of the shell. This allows for repositioning of the liner in the shell.
Is the poly liner hard to seat?
The poly liner only requires an impaction force of 60 - 120 lbs depending on the size of the shell. That is almost half of the impaction force required in the REFLECTION◊ system.¹
If the poly goes in easily, will it come out easily as well?
The poly liner push out values range from 200-270 lbf depending on the size of the shell¹ compared to 80 lbf for the REFLECTION system.
What are the grooves inside the perimeter shell?
There are three grooves in the R3 shell. The two below the taper are the axial locking mechanism for the XLPE bearing. The one positioned within the anti-rotation tabs is part of the locking mechanism for the constrained liner.
How can I tell if the liner is seated?
All the bearings sit flush with the face of the shell when fully seated (with exception of the lateralized liners). This can be checked visually or by running a finger around the circumference of the shell.
What is the new porous coating and how is it different than RoughCoat™?
R3 shells are available with STIKTITE◊ porous coating. STIKTITE coating contains sintered asymmetric Titanium grains as opposed to uniformly shaped sintered beads offered on the REFLECTION system. This provides a more “scratchy” feel while being implanted. STIKTITE coating utilizes the same sintering process as RoughCoat, it is not a sprayed application as with plasma spray.
What shell sizes and types are available?
The R3 System has NO HOLE, THREE HOLE, and MULTI HOLE options. The shell sizes available are 40 - 68mm for standard. The R3 System goes up to 80mm with MULTI HOLE.
For more detailed information, contact your local sales representative or call Customer Service at 1-800-238-7538.
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2. Heiner AD, Brown TD. Frictional coefficients of a new bone ingrowth structure. Poster no. 1623 presented at: Orthopaedic Research Society Annual Meeting; Feb 11-14, 2007; San Diego, CA.
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9. Internal Smith & Nephew testing on file.
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