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Item type:Publication, Access status: with files , Primary hip replacement stem taper fracture due to corrosion in 3 patients(Taylor & Francis, 2016-11-06); ; ; ; Publicationtype: Journal ArticleScopus© Citations 14 269 438 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Basic principles and uniform terminology for the head-neck juncton in hip replacement(2015-01-11); ; ; ; Recent problems with large head metal on metal hip replacements have spiked renewed interest in the head-neck juncton. A thorough knowledge of the principles of the locking mechanism, the assembly technique and afectng factors on the strength of this juncton is needed. Currently a confusing variability in terms is used to describe this juncton. This overcomplicates an already complex issue. The purpose of this literature review is to collect and list the diferent terms used and to propose a uniform terminology. Two authors independently searched the electronic databases of PubMed, CINAHL and MEDLINE with specific key words and combinatons according to the PRISMA guidelines. The inital search yielded a total of 518 artcles with ultmately 53 artcles included in the present analysis. No consensus for a uniform term for the 2 sides of the head-stem juncton was found. Since there is already pronounced variability in taper designs between diferent manufacturers (even so similarly named, e.g. “12/14”), a uniform terminology could be the frst step to simplify the situaton. “Male” and “female taper” is proposed as the appropriate terminology for the stem and head juncton in hip replacement, respectvely. The importance of the assembly technique understanding the principles of the locking mechanism is emphasised.Publicationtype: Journal Article57 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Basic principles and uniform terminology for the head-neck junction in hip replacement(Sage Publications, 2015); ; ; ; Recent problems with large head metal on metal hip replacements have spiked renewed interest in the head-neck junction. A thorough knowledge of the principles of the locking mechanism, the assembly technique and affecting factors on the strength of this junction is needed. Currently a confusing variability in terms is used to describe this junction. This overcomplicates an already complex issue. The purpose of this literature review is to collect and list the different terms used and to propose a uniform terminology. Two authors independently searched the electronic databases of PubMed, CINAHL and MEDLINE with specific key words and combinations according to the PRISMA guidelines. The initial search yielded a total of 518 articles with ultimately 53 articles included in the present analysis. No consensus for a uniform term for the 2 sides of the head-stem junction was found. Since there is already pronounced variability in taper designs between different manufacturers (even so similarly named, e.g. “12/14”), a uniform terminology could be the first step to simplify the situation. “Male” and “female taper” is proposed as the appropriate terminology for the stem and head junction in hip replacement, respectively. The importance of the assembly technique understanding the principles of the locking mechanism is emphasised.Publicationtype: Journal Article3 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , The relation between titanium taper corrosion and cobalt-chromium bearing wear in large-head metal-on-metal total hip prostheses : a retrieval study(American Academy of Orthopaedic Surgeons, 2014-09-17); ; ; Background: Revision of hip implants due to adverse tissue reactions to metal debris has been associated with wear and corrosion of the metal-on-metal bearing articulation and the modular taper interface. Bearing articulation wear is increased in conditions of poor lubrication, which can also lead to high friction moments that may cause corrosion at the taper interface. This suggests that wear of the bearing and increased corrosion of the taper interface should occur simultaneously, which was investigated in this study.Publicationtype: Journal Article10 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , European multidisciplinary consensus statement on the use and monitoring of metal-on-metal bearings for total hip replacement and hip resurfacing(Elsevier, 2013-03-16); ; ; ; Introduction: There is an ongoing debate about the optimal use of metal-on-metal (MoM) bearings in total hip replacement, since there are uncertainties about local and systemic adverse effects due to wear and corrosion of these bearings. Despite various national recommendations, efforts to achieve international harmonization of specific evidence-based recommendations for best practice are still lacking. Hypothesis: An international consensus study group should be able to develop recommendations on the use and monitoring of MoM bearings, preferably at the European level, through a multidisciplinary approach, by integrating the perspectives of various stakeholders. Materials and methods: Twenty-one experts representing three stakeholder groups and eight countries participated in this European consensus study, which consisted of a consensus meeting, subsequent structured discussion, and consensus voting. Results: The current statement defines first of all benefits, local and systemic risks, as well as uncertain issues related to MoM bearings. Safety assessment after implantation of MoM comprises all patients. A closer follow-up is recommended for large head MoM (≥36mm) and resurfacing. In these implants basic follow-up should consist of x-rays and metal ion measurement of cobalt in whole blood, performed with GF-AAS or ICP-MS. Clinical and/or radiographic abnormality as well as elevated ion levels needs additional imaging (ultrasound, CT-scan and/or MARS-MRI). Cobalt values less than 2. μg/L are probably devoid of clinical concern, the threshold value for clinical concern is expected to be within the range of 2-7. μg/L. Discussion: This is the first multinational, interdisciplinary, and multiprofessional approach for developing a recommendation for the use and monitoring of MoM bearings in total hip replacement. The current recommendations are in partial agreement with previous statements regarding the extent of follow-up and imaging techniques. They however differ from previous communications regarding measurement of metal ions and especially the investigated medium, technique, and eventual threshold levels. Level of evidence: Level V, expert opinion/agreement conference.Publicationtype: Journal Article211 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Consensus statement "Current evidence on the management of metal-on-metal bearings" April 16, 2012(Sage Publications, 2013-01-01); ; ; ; The following recommendations are based on expert opinions of an international multidisciplinary panel endorsed by the "European Federation of National Associations of Orthopaedics and Traumatology" (EFORT), the "European Hip Society" (EHS), the German "Arbeitsgemeinschaft Endoprothetik" (AE) and the "Deutsche Arthrosehilfe" (DAH). © 2013 Wichtig Editore - ISSN 1120-7000.Publicationtype: Journal ArticleScopus© Citations 38 27