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Philippe Hernigou Hôpital Henri Mondor, University of Paris-Est, France

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François Roubineau Hôpital Henri Mondor, University of Paris-Est, France

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Charlie Bouthors Hôpital Henri Mondor, University of Paris-Est, France

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Charles-Henri Flouzat-Lachaniette Hôpital Henri Mondor, University of Paris-Est, France

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interface for static friction to keep the assembly together will be higher. Jamming of the liner can occur also producing vacuum mechanism of suction of the head during the manoeuvres of push and pull by the surgeon to check stability. Ceramic head

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Claude B. Rieker Zimmer Biomet, Switzerland

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to understand in the tribology of THA. A good understanding of tribological properties helps the orthopaedic surgeon to choose the most suitable bearing solution for each individual patient. Conventional polyethylenes The MoP first used for

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Prashant Singh London North West University Healthcare NHS Trust, UK

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Suroosh Madanipour Barts Health NHS Trust, UK

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Andreas Fontalis St. George’s Hospital NHS Trust, UK

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Jagmeet Singh Bhamra Guy’s and St. Thomas’s NHS Trust, UK

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Hani B. Abdul-Jabar London North West University Healthcare NHS Trust, UK

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life expectancy, an ageing population and higher functional demand in the developed world. 3 Training future orthopaedic surgeons is clearly crucial if supply is to meet demand. However, such training raises several conflicting issues. Although

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Patrick Butler Department of Orthopaedic Surgery and Traumatology, Odense University Hospital, Odense, Denmark

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Josef Gorgis Department of Orthopaedic Surgery and Traumatology, Odense University Hospital, Odense, Denmark

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Bjarke Viberg Department of Orthopaedic Surgery and Traumatology, Kolding Hospital – part of Hospital Lillebaelt, Kolding, Denmark
Department of Regional Health Research, University of Southern Denmark, Odense, Denmark

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Søren Overgaard Department of Orthopaedic Surgery and Traumatology, Odense University Hospital, Odense, Denmark
Department of Clinical Research, University of Southern Denmark, Odense, Denmark

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Introduction Increasing numbers of patients each year are undergoing total hip arthroplasty (THA) due to osteoarthritis (OA). 1 , 2 The procedure requires reliable implants and the involvement of competent surgeons to minimize the risk of

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George C. Babis 2nd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, Konstantopouleio Hospital, Greece

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Vasileios S. Nikolaou 2nd Department of Orthopaedics, School of Medicine, National and Kapodistrian University of Athens, Konstantopouleio Hospital, Greece

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for orthopaedists. Especially acetabular reconstruction and the management of acetabular bone loss can be demanding and challenging, even for the experienced revision arthroplasty surgeon. Perhaps of all the difficult scenarios that a surgeon can

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Georgios Kyriakopoulos Hôpital de la Tour, Geneve, Switzerland

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Lazaros Poultsides New York University Langone Orthopedic Hospital, New York University School of Medicine, USA

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Panayiotis Christofilopoulos Hôpital de la Tour, Geneve, Switzerland

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of surgeons have been using the anterior approach for hip arthroplasty, as well as resurfacing and femoral neck fractures. The muscle-sparing nature of the approach and the improved early results of the anterior approach as well as the favourable

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Martin Krismer Department of Orthopaedics, Medical University of Innsbruck, Innsbruck, Austria

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important to continue their sporting activities, and stopping them would mean a considerable loss of lust for life. The surgeon consulting the patient having a THA is perhaps not a rock climber. He is aware of dislocation and fracture risk as well as

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Luigi Zagra Hip Department, IRCCS Istituto Ortopedico Galeazzi, Italy

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Enrico Gallazzi Hip Department, IRCCS Istituto Ortopedico Galeazzi, Italy

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options are available to the surgeon when choosing the bearing surface in THA ( Table 1 ). The most common material for acetabular liners is polyethylene (PE), either ultra-high molecular weight PE (UHMWPE) (the so-called ‘standard’ or ‘conventional’ PE

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Feng Xie The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China

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Shuya Sheng Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), University of Leeds, Leeds, UK

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Jeya Palan Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), University of Leeds, Leeds, UK

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Hemant G Pandit Leeds Institute of Rheumatic and Musculoskeletal Medicine (LIRMM), University of Leeds, Leeds, UK

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the correct indication and with an implant with a proven track record, the long-term results of HRA have been excellent, which has rekindled the interest of the public and surgeons in HRA. This review article will provide the reader with an up

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Geert Meermans Bravis Hospital, Roosendaal, The Netherlands

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George Grammatopoulos The Ottawa Hospital, Ottawa, Ontario, Canada

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Moritz Innmann Heidelberg University Hospital, Heidelberg, Germany

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David Beverland Belfast Health and Social Care Trust, Belfast, UK

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Introduction Acetabular component orientation and position are important factors in the short- and long-term outcomes of total hip arthroplasty (THA). Therefore, it is crucial that the surgeon has accurate and precise control over the

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