Biomaterial
Sumary Presentation
Sumary Presentation
Kartei Details
Karten | 15 |
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Sprache | Deutsch |
Kategorie | Technik |
Stufe | Universität |
Erstellt / Aktualisiert | 26.02.2013 / 06.10.2013 |
Lizenzierung | Kein Urheberrechtsschutz (CC0) |
Weblink |
https://card2brain.ch/box/biomaterial
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Einbinden |
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Material component of an Artificail Disc implant
Metal on Metal
Metal on Polymer
Possible risk and problems with artificial disc implants?
Heterotopic ossification -> leading to a fixation between the two vertebras affecting the range of movement (Before surgery 15°, after 5 years of surgery 3.3°)
Advantages of Artificial Disc Implants?
the patient maintains normal motion
the patient can return earlier to normal day activities
Defintion of Arthroplasty?
Arthroplasty is a surgery procedure, in which a jont is replaced by an artificial device in the human body.
Material of a Hip Implant:
- Shell
- Stem and Neck
- Head
- Liner
Shell: Metal / Ceramic (Alumina, Zirconia)
Stem and Neck: Metal (Ti-alloys, Co-Cr-Mo alloys, Stainless steel)
Head: Metal/ Ceramic
Liner: Polymer (PMMA, UHMWPE)
Fixation of a Hip Implant?
Shell and Stem!
Shell: help of external coating using friction, cement or screws for more fixation
Stem: can be fixed with bone cement or cement free