IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
Fondazione Livio Sciutto Onlus, Campus Savona – Università degli Studi di Genova, Savona, Italy
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Department of Orthopaedics, Leiden University Medical Center, Leiden, The Netherlands
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Fondazione Livio Sciutto Onlus, Campus Savona – Università degli Studi di Genova, Savona, Italy
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for special cases such as metal-on-metal (MoM) THA or small head size ( 5 , 12 , 13 ). Concerning the quality of evidence behind them, these guidelines were not evidence based but drafted from expert consensus. Therefore, the level of recommendation
Department of Surgery, Albany Health Campus, Albany, Australia
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Department of Surgery, Université de Montréal, Montréal, Québec, Canada
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future of these ‘minimalist’ inserts. Using LDH with hard metal-on-metal bearings did not come without problems, and in particular the appearance of ‘trunnionosis’ and associated secondary local adverse reaction to metal debris. 16 Another LDH joint
Department of Orthopaedic Surgery, Vejle Hospital, Vejle, Denmark
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Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Lund University, Skåne University Hospital, Department of Orthopedics, Malmö, Sweden
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Department of Clinical Medicine, University of Bergen, Bergen, Norway
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Department of Clinical Medicine, University of Bergen, Bergen, Norway
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Department of Orthopaedics and Traumatology, Turku University Hospital, Turku, Finland
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Department of Surgery, Epworth HealthCare, University of Melbourne, Melbourne, Australia
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Centre for Hip Surgery, Wrightington Hospital, Wrightington, Wigan and Leigh NHS Trust, Lancashire, United Kingdom
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Orthopaedic Research Unit, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
Department of Orthopaedic Surgery and Traumatology, Odense University Hospital, Odense, Denmark
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register. For example, owing to Swedish surgeons’ cautious attitude towards undocumented new concepts, Sweden avoided the catastrophes associated with metal-on-metal (MoM) implants. Today, six different stem designs account for > 92% of all femoral
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primary hip arthroplasties performed in patients presumed at high risk for dislocation. Available larger diameter material combinations include metal or ceramic on highly cross-linked polyethylene and metal-on-metal. The use of large head metal-on-metal
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in vivo . 11 Hard-on-hard bearings, such as ceramic-on-ceramic (CoC), with survival rates of approximately 97% at ten years, or metal-on-metal (MoM), with survival rates of approximately 90% at ten years (in the best reports), were initially
Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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National Institute for Health Research Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
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National Institute for Health Research Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
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alone. 1 The development and implementation of medical devices has been questioned for reasons related to widespread clinical use of new devices without evidence of their safety and performance (e.g. metal-on-metal hip prostheses), 2 limited
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Orthopedics, Faculty of Medicine, Department of Clinical Sciences, Lund University, Malmö, Sweden
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BG Kliniken – Klinikverbund der gesetzlichen Unfallversicherung gGmbH, Berlin, Germany
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investigations on alumina–zirconia prior to approval by the FDA, EMEA, and other regulatory bodies. We included studies published until May 1, 2023. We decided to exclude research incorporating metal-on-metal (MoM) pairings unless relevant information on CoC
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-on-soft’ and ‘hard-on-hard’. The former included metal or ceramic heads on polythene and the latter ‘metal-on-metal’ or ‘ceramic-on-ceramic’. The best performing construct in the NJR at the time of publishing was a cemented Exeter Stem and the Charnley Elite
Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, UK
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available resources. Another use of registry data relates to the prevention of adverse events and threats to patients and to public health. Tissue responses from cobalt ions produced from excessive wear in metal-on-metal hip arthroplasty or implant
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disadvantages of the many bearing surface options in total hip arthroplasty are under investigation; the most appropriate choice should be individualised to each patient. Following the wide-ranging use of metal-on-metal surfaces which have demonstrated local
