Bionische Oberflächengestaltung der Metall/Metall-Gleitpaarung in der Hüftendoprothetik Optimierung tribologischer Eigenschaften / Bionic surface design in metal on metal bearings for total hip arthroplasty – Optimization of tribological characteristics

Autor:	J Scholz, U. Böhling, Thomas W, Grundei H
Rok vydání:	2005
Předmět:	Surface (mathematics) Bearing (mechanical) Materials science medicine.medical_treatment Biomedical Engineering Mechanical engineering Fluid bearing Tribology Arthroplasty Durability law.invention law Dimple medicine Reduction (mathematics)
Zdroj:	Biomedizinische Technik/Biomedical Engineering. 50:119-123
ISSN:	1862-278X 0013-5585
DOI:	10.1515/bmt.2005.017
Popis:	Bionic systems are aiming to integrate natural observing into mechanical solutions. This has been realized in the design of metal on metal bearing in total hip resurface arthroplasty. The articular side of the femoral cup is covered with a dimple like surface. Under laboratory condition this so called "surf-metal-cup" achieved a reduction of the mechanical wear to almost a third part in comparison to a metal-cup with plane surface. This advantage, caused by the reduced friction-coefficient due to improved hydrodynamic lubrication could also be proved under laboratory conditions. The clinical introduction is expected to offer a significant extension of durability in this prosthetic system and needs to be proved in a long-term study.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::28e4d496a8692812dbd7be48dc4e7871 https://doi.org/10.1515/bmt.2005.017 Zobrazit plný text záznamu