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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

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