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Carlos A. Encinas-Ullán Department of Orthopaedic Surgery, La Paz University Hospital-IdiPaz, Madrid, Spain

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Primitivo Gómez-Cardero Department of Orthopaedic Surgery, La Paz University Hospital-IdiPaz, Madrid, Spain

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Juan S. Ruiz-Pérez Department of Orthopaedic Surgery, La Paz University Hospital-IdiPaz, Madrid, Spain

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E. Carlos Rodríguez-Merchán Osteoarticular Surgery Research Hospital, La Paz Institute for Health Research – IdiPAZ (La Paz University Hospital – Autonomous University of Madrid), Madrid, Spain

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reason for the knee replacement, previous knee procedures, details of the surgical technique, the type of prosthesis used, and whether the patient experienced any trauma to the knee. During the follow-up of patients with RH-TKA, we must assess whether

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Gilles Pasquier Service de Chirurgie Orthopedique, Centre-Hospitalo-Universitaire de Lille, France

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Matthieu Ehlinger Service de Chirurgie Orthopedique et de Traumatologie, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, France

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Didier Mainard Service de Chirurgie Orthopédique, Cente Hospitalo-Universitaire de Nancy, Centre Hospitalo-Universitaire de Nancy, France

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. Joshi and Navarro-Quilis 20 in their study of 78 cases analysed the outcomes of the Endo-Model® hinged rotational knee prosthesis (Link®) at a mean of five years’ follow-up (FU). They found a significant improvement in the functional outcomes. The

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Timothy Lording Melbourne Orthopaedic Group and The Alfred Hospital, Australia

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Sébastien Lustig Albert Trillat Center, Groupement Hospitalier Nord, Université Lyon 1, France

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Philippe Neyret Albert Trillat Center, Groupement Hospitalier Nord, Université Lyon 1, France

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. Lotke PA , Ecker ML . Influence of positioning of prosthesis in total knee replacement . J Bone Joint Surg [Am] 1977 ; 59-A : 77 – 79 . 8. Denham RA , Bishop RE . Mechanics of the knee and problems in

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Mark Anthony Roussot University College London Hospitals NHS Foundation Trust, London, UK
Department of Orthopaedic Surgery, University of Cape Town, SA

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Fares Sami Haddad University College London Hospitals NHS Foundation Trust, London, UK

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arthrosis. 18 , 19 Early TKA pioneers soon revisited their designs when extensor mechanism dysfunction and anterior knee pain became evident. For example, in 1973 the total condylar prosthesis was redesigned to include a proximal flange that could

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Simon Donell Norwich Medical School, Faculty of Medicine and Health Sciences, University of East Anglia, UK

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: femoral implant design Cadaveric studies A cadaveric study of six knees looked at whether trochlear design would affect patellar tracking. 15 Comparison was made between a symmetrical femoral prosthesis (Kinemax, Stryker, Mahwah, NJ, USA) and a

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Jimmy Wui Guan Ng Nottingham City Hospital, Nottingham, UK

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Benjamin V. Bloch Nottingham City Hospital, Nottingham, UK

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Peter J. James Nottingham City Hospital, Nottingham, UK

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Arthroplasty 2017 ; 32 : 1310 – 1313 . 42. Bertin KC Lloyd WWS . Effect of total knee prosthesis design on patellar tracking and need for lateral retinacular release . J Arthroplasty 2013 ; 28 : 772 – 777 . 43

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Julien Favre Swiss BioMotion Laboratory, Department of Musculoskeletal Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland

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Brigitte M. Jolles Swiss BioMotion Laboratory, Department of Musculoskeletal Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
Institute of Microengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland

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cause of disability by 2020 and affecting a third of the population by 2030. 2 , 3 The knee is the most frequently affected load-bearing joint, with disease developing more often in the medial than in any other knee compartment. An important element

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Josep Muñoz Vives Hospital Nostra Senyora de Meritxell, Andorra, Spain

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Jean-Christophe Bel Hospices Civils de Lyon, Lyon, France

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Arantxa Capel Agundez Hospital Universitario 12 de Octubre, Madrid, Spain

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Francisco Chana Rodríguez Hospital General Universitario Gregorio Marañón, Madrid, Spain

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José Palomo Traver Hospital General de Castelló, Castelló de la Plana, Spain

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Morten Schultz-Larsen Odense Universitetshospita, Odense, Denmark

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Theodoros Tosounidis Leeds General Infirmary, Leeds, UK

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documented in case reports. 28 , 29 Plating should be considered as an option in fractures in close proximity to the components of the prosthesis when stability had previously been unsatisfactory. When the latter is the case, revision total knee

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Kara McConaghy Case Western Reserve University School of Medicine, Cleveland, Ohio, USA

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Tabitha Derr Implant Research Core, School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA

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Robert M. Molloy Cleveland Clinic, Department of Orthopedic Surgery, Cleveland, Ohio, USA

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Alison K. Klika Cleveland Clinic, Department of Orthopedic Surgery, Cleveland, Ohio, USA

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Steven Kurtz Implant Research Core, School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA
Exponent, Philadelphia, Pennsylvania, USA

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Nicolas S. Piuzzi Cleveland Clinic, Department of Orthopedic Surgery, Cleveland, Ohio, USA

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variable was the type of prosthesis used. 80 Comparing the outcome of non-resurfaced patients between both studies demonstrated a significant decrease in both anterior knee pain and reoperation rate. 81 , 83 O’Brien et al conducted a study of 600

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Gerhard M. Hobusch Medical University of Vienna, Department of Orthopaedics and Trauma Surgery, Vienna, Austria

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Kevin Döring Medical University of Vienna, Department of Orthopaedics and Trauma Surgery, Vienna, Austria

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Rickard Brånemark Gothenburg University, Gothenburg, Sweden
Biomechatronics Group, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA

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Reinhard Windhager Medical University of Vienna, Department of Orthopaedics and Trauma Surgery, Vienna, Austria

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scores (7.0–8.4%, p </= 0.05) compared with the C-Leg. 1.277 Jayaraman et al 85 2018 Impact of powered knee-ankle prosthesis on low back muscle mechanics in transfemoral amputees: a case series Level IV. Impact of using a powered knee

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