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Konrad Sebastian Wronka Department Of Orthopaedics, Prince Philip Hospital, Hywel Dda University Healthboard, Llanelli, UK

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Michell Gerard-Wilson Department Of Orthopaedics, Prince Philip Hospital, Hywel Dda University Healthboard, Llanelli, UK

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Elizabeth Peel Department Of Orthopaedics, Prince Philip Hospital, Hywel Dda University Healthboard, Llanelli, UK

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Ola Rolfson Department Of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg, Sweden

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Peter Herman Johan Cnudde Department Of Orthopaedics, Prince Philip Hospital, Hywel Dda University Healthboard, Llanelli, UK
Department Of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg, Sweden

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because of failure of the implant or the surrounding bone. It is anticipated that the demand for revision surgery will increase 2 – 5 and a change in the pattern in indications and timing of revisions has been described. 6 Revision surgery is

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Markus S. Hanke Department of Orthopaedic and Trauma Surgery, Inselspital, University of Bern, Bern, Switzerland

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Florian Schmaranzer Department of Diagnostic, Interventional and Pediatric Radiology, University Hospital of Bern, Inselspital, University of Bern, Bern, Switzerland

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Simon D. Steppacher Department of Orthopaedic and Trauma Surgery, Inselspital, University of Bern, Bern, Switzerland

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Till D. Lerch Department of Orthopaedic and Trauma Surgery, Inselspital, University of Bern, Bern, Switzerland

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Klaus A. Siebenrock Department of Orthopaedic and Trauma Surgery, Inselspital, University of Bern, Bern, Switzerland

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at 3 T, direct MR arthrography is still the current diagnostic gold-standard in the detection of chondrolabral lesions. 7 – 9 MR arthrograms provide crucial prognostic information as extensive cartilage defects, acetabular cysts and osteophyte

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Andy Craig Department of Trauma & Orthopaedics, Leeds Teaching Hospitals, Leeds, UK

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S W King Department of Trauma & Orthopaedics, Leeds Teaching Hospitals, Leeds, UK

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B H van Duren Leeds Institute of Rheumatic Musculoskeletal Medicine (LIRMM), Chapel Allerton Hospital, Leeds, UK

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V T Veysi Department of Trauma & Orthopaedics, Leeds Teaching Hospitals, Leeds, UK
Leeds Institute of Rheumatic Musculoskeletal Medicine (LIRMM), Chapel Allerton Hospital, Leeds, UK

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S Jain Department of Trauma & Orthopaedics, Leeds Teaching Hospitals, Leeds, UK
Leeds Institute of Rheumatic Musculoskeletal Medicine (LIRMM), Chapel Allerton Hospital, Leeds, UK

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J Palan Department of Trauma & Orthopaedics, Leeds Teaching Hospitals, Leeds, UK
Leeds Institute of Rheumatic Musculoskeletal Medicine (LIRMM), Chapel Allerton Hospital, Leeds, UK

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constructed in the surgical field using antibiotic-impregnated PMMA. Common forms of handmade static spacer may include beads, balls, flattened blocks and intramedullary dowels/rods of PMMA, fashioned to fit the local bone defects ( 27 ). Handmade spacers

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Kwaku Baryeh The Academic Surgical Unit, South West London Elective Orthopaedic Centre, UK

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Jeewaka Mendis Surrey Clinical Trials Unit, University of Surrey, UK

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David H. Sochart The Academic Surgical Unit, South West London Elective Orthopaedic Centre, UK

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better stress distribution through the cement mantle 49 and a reduction in negative bone remodelling with time. The current review found that double-tapered stems have a higher rate of migration in the first year compared with triple-tapers, but

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Maria Moralidou Institute of Orthopaedics and Musculoskeletal Science, University College London and the Royal National Orthopaedic Hospital, Stanmore, UK

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Anna Di Laura Institute of Orthopaedics and Musculoskeletal Science, University College London and the Royal National Orthopaedic Hospital, Stanmore, UK

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Johann Henckel Institute of Orthopaedics and Musculoskeletal Science, University College London and the Royal National Orthopaedic Hospital, Stanmore, UK

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Harry Hothi Institute of Orthopaedics and Musculoskeletal Science, University College London and the Royal National Orthopaedic Hospital, Stanmore, UK

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Alister J. Hart Institute of Orthopaedics and Musculoskeletal Science, University College London and the Royal National Orthopaedic Hospital, Stanmore, UK

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from Google Scholar. Of these, 11 were excluded according to the inclusion criteria. In detail, there were one book, two studies written in foreign languages, two revision studies, four not fully scientific journals, one bone tumour surgery and one

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Philippe Hernigou Hôpital Henri Mondor, University Paris East, Paris, France

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Victor Housset Hôpital Henri Mondor, University Paris East, Paris, France

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Jacques Pariat Hôpital Henri Mondor, University Paris East, Paris, France

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Arnaud Dubory Hôpital Henri Mondor, University Paris East, Paris, France

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Charles Henri Flouzat Lachaniette Hôpital Henri Mondor, University Paris East, Paris, France

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circulation leading to anaemia. Of greater clinical importance, sickle-shape cells cause vascular occlusion, resulting in ischaemia and tissue infarction. Patients homozygous for the sickle cell gene (SS haemoglobin) are at high risk of bone osteonecrosis 1

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Xavier du Cluzel de Remaurin Pediatric Orthopaedic Surgery Department, Paris Descartes University, Assistance Publique Hôpitaux de Paris (AP-HP), Necker Hospital, Paris, France
Arts et Métiers Institute of Technology, Université Sorbonne Paris Nord, IBHGC-Institut de Biomécanique Humaine Georges Charpak, HESAM Université, Paris, France

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Nejib Khouri Pediatric Orthopaedic Surgery Department, Paris Descartes University, Assistance Publique Hôpitaux de Paris (AP-HP), Necker Hospital, Paris, France

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Samuel Georges Pediatric Orthopaedic Surgery Department, Paris Descartes University, Assistance Publique Hôpitaux de Paris (AP-HP), Necker Hospital, Paris, France

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Laurent Gajny Arts et Métiers Institute of Technology, Université Sorbonne Paris Nord, IBHGC-Institut de Biomécanique Humaine Georges Charpak, HESAM Université, Paris, France

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Claudio Vergari Arts et Métiers Institute of Technology, Université Sorbonne Paris Nord, IBHGC-Institut de Biomécanique Humaine Georges Charpak, HESAM Université, Paris, France

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Alina Badina Pediatric Orthopaedic Surgery Department, Paris Descartes University, Assistance Publique Hôpitaux de Paris (AP-HP), Necker Hospital, Paris, France

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hundred Chinese . PLoS One 2017 12 e0172297 . ( https://doi.org/10.1371/journal.pone.0172297 ) 47 Hettich G Schierjott RA Ramm H Graichen H Jansson V Rudert M Traina F & Grupp TM . Method for quantitative assessment of acetabular bone defects

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Pablo Castillón Department of Trauma and Orthopaedic Surgery, Hospital, Universitari Mútua Terrassa, Terrassa, Barcelona, Spain
Universidad Autònoma de Barcelona (UAB), Bellaterra, Barcelona, Spain

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Josep Maria Muñoz Vives Department of Trauma and Orthopaedic Surgery, Hospital Althaia Manresa. Manresa, Barcelona, Spain
Department of Trauma and Orthopaedic Surgery, Hospital Nostra Senyora de Meritxell, Andorra

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Héctor José Aguado Department of Trauma and Orthopaedic Surgery, Hospital Clínico Universitario de Valladolid. Valladolid, Spain
Universidad de Valladolid, Valladolid, Spain

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Arantxa Capel Agundez Department of Trauma and Orthopaedic Surgery, Hospital Universitario 12 de Octubre, Madrid, Spain

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Alina Ortega-Briones Department of Trauma and Orthopaedic Surgery, Hospital Clínico Universitario de Valladolid. Valladolid, Spain

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Jorge Hassan Núñez Department of Trauma and Orthopaedic Surgery, Hospital, Universitari Mútua Terrassa, Terrassa, Barcelona, Spain
Universidad Autònoma de Barcelona (UAB), Bellaterra, Barcelona, Spain

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the PISCO Investigators †
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the PISCO Investigators

fracture in the presence of a pre-existing non-prosthetic implant ( 4 , 5 ). Even with implant improvement, several reports have shown a potential risk of femoral fractures after osteosynthesis due to changes in bone elastic modulus, ‘stress riser’ effect

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Eustathios Kenanidis Hôpital de la Tour, Geneva, Switzerland
Academic Orthopaedic Department, Papageorgiou General Hospital, Aristotle University Medical School, Thessaloniki, Greece
Centre of Orthopaedics and Regenerative Medicine (CORE) – Centre of Interdisciplinary Research and Innovation (CIRI) – Aristotle University Thessaloniki, Greece

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George Kyriakopoulos Hôpital de la Tour, Geneva, Switzerland
Gennimatas General Hospital, Cholargos, Athens, Greece

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Rajiv Kaila Hôpital de la Tour, Geneva, Switzerland

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Panayiotis Christofilopoulos Hôpital de la Tour, Geneva, Switzerland

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prosthetic hips are present. The size and shape of muscles, tendinosis, partial or complete tendon defects and fatty infiltration of gluteal muscles can be assessed. An area of hyperintense signal superior or lateral to the greater trochanter, separating the

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Georgios Tsikandylakis Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sweden
Region Västra Götaland, Sahlgrenska University Hospital, Department of Orthopaedics, Gothenburg, Sweden

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Soren Overgaard The Danish Hip Arthroplasty Register, Aarhus, Denmark
Department of Orthopaedic Surgery and Traumatology, Odense University Hospital, Odense, Denmark
Institute of Clinical Research, University of Southern Denmark, Odense, Denmark

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Luigi Zagra Hip Department, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy

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Johan Kärrholm Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sweden
Region Västra Götaland, Sahlgrenska University Hospital, Department of Orthopaedics, Gothenburg, Sweden
The Swedish Hip Arthroplasty Register, Gothenburg, Sweden

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cemented conventional cup, with or without impaction grafting. Lower re-revision rate due to dislocation and due to any reason was observed after four years with use of DMCs. The role of DMCs in revisions with more severe bone defects is still unclear, but

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