BIOLOX - Nanocomposite for Arthoplasty
The Fourth Generation of Ceramics The Fourth Generation of Ceramics
Tribology and Arthroplasty Competence in Ceramics Material Properties The Strengths of BIOLOX ® delta Proven High Performance Ceramics 4 Technology Leader About 80 percent of all ceramic implants for hip arthroplasty are manufactured by CeramTec. Around 4.1 million ball heads and 700,000 cup liners made of BIOLOX ® ceramics have been implanted to date (August 2007) around the world. The clinical results in combination with approximately 500 stem and 150 cup systems marketed by all of the leading implant manufacturers, have been outstanding. With comprehensive experience in this area for more than three decades, CeramTec is the world leader in this technology. Ceramic components made of BIOLOX ® owe their superior properties to a unique material composition, the most modern production techniques and a multi-stage, comprehensive system of quality control. Extreme Hardness The purest raw materials and a manufacturing process that has been refined over decades ensure the highest degree of material uniformity, mechanical properties and perhaps most importantly hardness. This results in excellent wear resistance. Ceramic ball heads before sintering – a refined process ensures reliable products. Exacting Sphericity A maximum variance from an ideal sphere of only 5µm ensures that the articulation design produces the least amount of wear possible (testing accurancy
Superiority in Extreme Conditions Polyethylene Ceramic Foreign particles that are harder than the bearing surface lead to high levels of wear (left). 5 Surfaces made of high performance ceramics remain largely unchanged even when exposed to ceramic particles (right). Metal Ceramic No Third-Body Wear Unsurpassed hardness prevents surface damage to the articulation by third-body wear in ceramic-on-ceramic bearings. Foreign particles are broken down and extruded without damaging the bearing surfaces. Scratched surfaces increase abrasion in cup liners made of PE, XPE and metal. No Scratches Cement particles and surgical instruments are not able to scratch ceramic surfaces – an important advantage when using cement and minimally invasive procedures. Highest Degree of Biocompatibility Clinical experience shows no known longterm adverse reactions to ceramic particles. Ceramic materials are entirely biologically inert and exhibit unmatched biocompatibility. Excellent Wettability Hydrogen bonds between ceramic surfaces and synovial fluid ensure excellent wettability and the formation of an effective lubricating film. Only an unscratched, smooth surface of the sort achieved in BIOLOX ® ceramics enables optimal wetting, outstanding lubrication and minimal wear. The strong hydrogen bonds that form between ceramic surfaces and synovial fluid give ceramic materials wetting properties that are superior to those of metal and polyethylene.
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Tribology and Arthroplasty<br />
Competence in Ceramics<br />
Material Properties<br />
The Strengths of <strong>BIOLOX</strong> ® delta<br />
Proven High Per<strong>for</strong>mance Ceramics<br />
4<br />
Technology Leader<br />
About 80 percent of all ceramic implants<br />
<strong>for</strong> hip arthroplasty are manufactured by<br />
CeramTec. Around 4.1 million ball heads<br />
and 700,000 cup liners made of <strong>BIOLOX</strong> ®<br />
ceramics have been implanted to date (August<br />
2007) around the world. The clinical<br />
results in combination with approximately<br />
500 stem and 150 cup systems marketed<br />
by all of the leading implant manufacturers,<br />
have been outstanding. With comprehensive<br />
experience in this area <strong>for</strong> more than<br />
three decades, CeramTec is the world<br />
leader in this technology.<br />
Ceramic components made of <strong>BIOLOX</strong> ®<br />
owe their superior properties to a unique<br />
material composition, the most modern<br />
production techniques and a multi-stage,<br />
comprehensive system of quality control.<br />
Extreme Hardness<br />
The purest raw materials and a manufacturing<br />
process that has been refined over<br />
decades ensure the highest degree of<br />
material uni<strong>for</strong>mity, mechanical properties<br />
and perhaps most importantly hardness.<br />
This results in excellent wear resistance.<br />
Ceramic ball heads be<strong>for</strong>e<br />
sintering – a refined<br />
process ensures reliable<br />
products.<br />
Exacting Sphericity<br />
A maximum variance from an ideal sphere<br />
of only 5µm ensures that the articulation<br />
design produces the least amount of wear<br />
possible (testing accurancy
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