BIOLOX - Nanocomposite for Arthoplasty
The Fourth Generation of Ceramics
The Fourth Generation of Ceramics
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Instability<br />
Component impingement can result in a<br />
limited range of motion (ROM). That’s why,<br />
in addition to exact implant positioning,<br />
the technical ROM achieved after implantation<br />
plays a crucial role. While large ball<br />
head and cup-liner diameters increase<br />
ROM, they are associated – in the case<br />
of PE and XPE – with an increased volume<br />
of wear particles and in a metal-on-metal<br />
articulation with the possible negative<br />
effects of an elevated level of metal ions<br />
released into the surrounding tissues.<br />
Both mechanisms have been the subject<br />
of intense scientific discussion.<br />
Hypersensitivity<br />
The incidence of hypersensitivity and allergic<br />
reactions to metals is on the rise in<br />
the world’s industrialized countries. The<br />
possible onset of hypersensitive reactions<br />
in patients treated with metal-on-metal<br />
bearings cannot be completely ruled out<br />
in advance. Metal allergies detected post<br />
surgery represents an additional burden<br />
<strong>for</strong> patients and insurers. There<strong>for</strong>e, it has<br />
become even more important to use implant<br />
materials that exhibit a biologically<br />
compatible behavior in the body.<br />
<strong>BIOLOX</strong> ® delta has introduced novel<br />
solutions to these problems.<br />
3<br />
Impingement and dislocation<br />
are a frequent complication<br />
in younger and more active<br />
patients.<br />
“Melting bone” as a result<br />
of metal ion exposure.<br />
Source: Prof. Dr. W. Mittelmeier, Orthopaedic Clinic, Rostock University,<br />
Germany<br />
Source: Prof. Dr. P. Bösch, Orthopaedic Department of the Wiener Neustadt Hospital, Austria