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Joseph J Ruzbarsky Steadman Philippon Research Institute, Vail, Colorado, USA
Steadman Clinic and United States Coalition for the Prevention of Illness and Injury in Sport, Vail, Colorado, USA

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Rui W Soares Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio, USA

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Spencer M Comfort Steadman Philippon Research Institute, Vail, Colorado, USA

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Justin W Arner Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA

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Marc J Philippon Steadman Philippon Research Institute, Vail, Colorado, USA
Steadman Clinic and United States Coalition for the Prevention of Illness and Injury in Sport, Vail, Colorado, USA

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of the extracellular matrix components of collagen and fibronectin. This tissue is typically deposited in and around damaged or inflamed tissue which in a joint space results primarily in stiffness and pain ( 4 , 5 ). Fibrosis may not be the only

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Michael M. Morlock TUHH Hamburg University of Technology, Hamburg, Germany.

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Robert Hube OCM Clinic Munich, Munich, Germany

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Georgi Wassilew Department for Orthopaedics and Orthopaedic Surgery, University of Greifswald, Greifswald, Germany

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Felix Prange TUHH Hamburg University of Technology, Hamburg, Germany.

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Gerd Huber TUHH Hamburg University of Technology, Hamburg, Germany.

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Carsten Perka Center for Musculoskeletal Surgery, Orthopedic Department, Charité – Universitätsmedizin Berlin, Berlin, Germany

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range of motion of the joint with the use of small ball heads (32 mm diameter and below). The downside of all these changes was a reduction of taper contact area and taper bending stiffness. Today in Europe the so-called ‘12/14 taper’ or ‘Euro taper’ is

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Javier Pizones Spine Unit, Department of Orthopaedic Surgery, Hospital Universitario La Paz, Madrid, Spain

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Eduardo García-Rey Hip Unit, Department of Orthopaedic Surgery, Hospital Universitario La Paz, Madrid, Spain

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sagittal spine classification, and in the end pelvic morphology, also dictates hip range of motion. Narrower and more vertical pelvises, with low PI and low SS, have less ability to rotate (retrovert), creating a stiffer lumbosacral junction. Pelvic motion

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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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Philippe Phan The Ottawa Hospital, Ottawa, Ontario, Canada

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Russell Bodner Midwest Orthopedic Institute, Sycamore, United States of America

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Geert Meermans Bravis Hospital, Roosendaal, The Netherlands

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, the longer the arthrodesis, the stiffer the spinal complex and the greater the demand on the hip, for any given task. This leads to a greater risk of impingement and subsequent instability. Terminology – spinopelvic parameters To better

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

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Francesco Benazzo Chirurgia Protesica ad Indirizzo Robotico, Fondazione Poliambulanza, Brescia, Italy

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Dante Dallari Reconstructive Orthopaedic Surgery and Innovative Techniques – Musculoskeletal Tissue Bank, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy

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Francesco Falez Department of Orthopaedics and Traumatology, ASL Roma 1, S. Filippo Neri Hospital, Rome, Italy

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Giuseppe Solarino Department of Basic Medical Sciences, Neuroscience and Sense Organs, Orthopaedic & Trauma Unit, School of Medicine, University of Bari Aldo Moro, AOU Consorziale ‘Policlinico’, Bari, Italy

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Rocco D’Apolito Hip Department, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy

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Claudio Carlo Castelli FROM, Research Foundation Papa Giovanni XXIII Hospital, Bergamo, Italy

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balanced Low standing SS, sagittally imbalanced Fused spine Explanation Physiologic mobility Stiffness Spine-ageing modifications Spine-ageing modifications Spine surgery Risk assessment Very low–low Moderate–high Moderate

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Charles Rivière MSK Lab, Imperial College London, UK; South West London Elective Orthopaedic Center, UK

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Stefan Lazic South West London Elective Orthopaedic Center, UK

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Loïc Villet Centre de l’arthrose, Merignac, France

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Yann Wiart Unfallchirurgie, Theresienkrankenhauss Mannheim, Germany

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Sarah Muirhead Allwood London Hip Unit, UK

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Justin Cobb MSK Lab, Imperial College London, UK

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incidence (< 35°) are therefore affected by a clinically deleterious lumbopelvic stiffness. 54 - 60 This generates aberrant functional acetabular orientation in sitting/squatting 9 , 47 - 51 , 61 or standing positions. 59 , 62 A compensatory

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Nicolas de l’Escalopier Service de Chirurgie Orthopédique, Hôpital Raymond Poincaré, France
Service de Chirurgie Orthopédique, Traumatologie et Chirurgie Réparatrice des Membres, Hôpital d’Instruction des Armées Percy, France

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Marjorie Salga Service de médecine physique et réadaptation, Hôpital Raymond Poincaré, France

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Laure Gatin Service de Chirurgie Orthopédique, Hôpital Raymond Poincaré, France

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François Genêt Service de médecine physique et réadaptation, Hôpital Raymond Poincaré, France

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Philippe Denormandie Service de Chirurgie Orthopédique, Hôpital Raymond Poincaré, France

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stiffness is only extra-articular due to the heterotopic ossification. The rare cases with intra-articular stiffness are caused by cartilage degeneration with fibrosis or fusion between the femoral head and acetabulum. This cartilage degeneration occurs when

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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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back, but this is not always achieved and a number of factors may contribute to this. Intra-operatively the titanium shell can deform diametrically because the titanium shell has a thinner wall than the ceramic, and the material stiffness of titanium is

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Stefan Lazic South West London Elective Orthopaedic Centre, UK

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Oliver Boughton MSK Lab, Imperial College London, UK

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Catherine F. Kellett South West London Elective Orthopaedic Centre, UK

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Deiary F. Kader South West London Elective Orthopaedic Centre, UK

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Loïc Villet Centre de l’arthrose – Clinique du sport, Mérignac, France

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Charles Rivière South West London Elective Orthopaedic Centre, UK
MSK Lab, Imperial College London, UK

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.7 39.67 Knee stiffness Deep vein thrombosis Bovonratwet 9 Retrospective comparison TKA 30 2.65 3.01 6.56 16.06 Transfusion Transfusion Otero et al 12 Retrospective comparison TKA 30 1.93 12.75 5

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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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and randomly assigned to either two or three-cable fixation and implantation of cylindrical fully coated stem. No statistically significant difference was found between the two-cable group and the three-cable group with regard to peak force, stiffness

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