Biocompatibility of a New Alumina Matrix Biocomposite AMC

Willmann, G.; Chamier, W. von; Pfaff, H.-G.; Rack, R.

doi:10.4028/www.scientific.net/kem.192-195.569

Cited by 19 publications

(13 citation statements)

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“…As might be expected, this broad range of Al 2 O 3 -ZrO 2 mixtures resulted in marked differences in properties, but all are superior to both pure Al 2 O 3 and Y-TZP. All have been tested and determined to be biocompatible [163,164]. They have excellent strength, toughness, and hardness [154,165,166], and are highly abrasion [167] and wear resistant [168][169][170][171][172][173][174].…”

Section: Zirconia Toughened Aluminamentioning

confidence: 99%

Ceramics and ceramic coatings in orthopaedics

McEntire

Bal

Rahaman

et al. 2015

Journal of the European Ceramic Society

188

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Section: Zirconia Toughened Aluminamentioning

confidence: 99%

Ceramics and ceramic coatings in orthopaedics

McEntire

Bal

Rahaman

et al. 2015

Journal of the European Ceramic Society

188

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“…Hip joint simulation testing indicates that the wear rate of AMC‐on‐AMC is even lower than the values for ZTA‐on‐ZTA and Al 2 O 3 ‐on‐Al 2 O 3 164,168,169 . Biocompatibility testing performed according to the European standard EN 30993 further indicates that AMC is bioinert 170 . This AMC material is manufactured by Ceram Tec, and available under the trade name Biolox ® delta .…”

Section: Materials For Total Joint Replacementmentioning

confidence: 99%

Ceramics for Prosthetic Hip and Knee Joint Replacement

Rahaman

Yao

Bal

et al. 2007

Journal of the American Ceramic Society

307

160

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The most commonly used bearing couple in prosthetic hip or knee joint replacements consists of a cobalt–chrome (CoCr) metal alloy articulating against ultrahigh‐molecular‐weight polyethylene. Ceramics have been used as an alternative to metal‐on‐polyethylene in joint replacement surgery of arthritic hips and knees since the 1970s. In prosthetic hip and knee bearings, ceramic surfaces offer a major benefit of drastically reduced wear rates and excellent long‐term biocompatibility, which can increase the longevity of prosthetic hip and knee joints. This benefit is important clinically because hip and knee replacement has become a very common surgical procedure, particularly in the United States, and because these procedures are being increasingly performed in younger patients who place greater demands on the prosthetic bearings. However, ceramics are brittle and the risk of catastrophic bearing failure in vivo, while rare, is a major concern. Improvements in material quality, manufacturing methods, and implant design have resulted in a drastic reduction of the incidence of such failures, so that modern ceramic bearings are safe and reliable if used with components of proven design and durability. Future material improvements are actively being investigated to reduce the risk of ceramic‐bearing failures even further. The purpose of this article is to review the structure, properties, applications, and limitations of the ceramics that have been used in orthopedic bearings, and to describe the new ceramic composite materials and surface treatments that will be available for joint replacement surgery in the near future.

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“…One advantage of this material is that it has enabled production of thinner walled components with the identical load bearing capability as compared to alumina [11]. The results of hip simulator tests exhibited less wear rate for AMC-AMC couplings rather than ZTA-ZTA, or alumina-alumina [110] and biocompatibility investigations demonstrated that AMC is a bioinert material [140]. This material has an elastic modulus of about 350 GPa, which is much higher than that of metallic materials.…”

Section: Alumina Zirconia Compositementioning

confidence: 95%