EMERGENCE
The EMERGENCE cemented cup respects the fundamental of the LFA (low friction arthroplasty) described by Sir John Charnley in 1962:
- ultra high molecular weight polyethylene arthroplasty
- reduced bearing diameter of 22.2mm or 28mm
- wide articulating chamfer in the lower quadrant of the cup favoring the ROM
- deep concentric grooves for a long-term fixation to the bone cement
- polar cylindrical contact allowing to preserve an even cement mantle around the cup
- peripherical flange of diameter larger than the dome
- peripheral crenels allowing the pressurization of the cement
- circomferential radiloucent wire
- holding and implantation instrument indexed to the cup
EVOLUTIS has brought 2 modifications to the original concept:
- a version of the articular plan of 15 ° with regard to the equatorial plane of the cup
- a PEXEL grade polyethylene (moderately crosslinked) which allows for a reduction of 50 % of the wear with compared with a conventional polyethylene