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Olivier Guyen Department of Orthopaedic Surgery, Lausanne University Hospital, Lausanne, Switzerland

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, the liner extends beyond a hemisphere with polyethylene extended around the rim and with an inner diameter of the opening that is smaller than the prosthetic head. Reduction of the head within the liner is achieved through mechanical expansion of the

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Maria A. Smolle Department of Orthopaedics and Trauma, Medical University of Graz, Austria

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Dimosthenis Andreou Department of General Orthopaedics and Tumour Orthopaedics, University Hospital Muenster, Germany

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Per-Ulf Tunn Tumour Orthopaedics, HELIOS Klinikum Berlin-Buch, Germany

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Andreas Leithner Department of Orthopaedics and Trauma, Medical University of Graz, Austria

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. Literature research was performed until 10 June 2018. The following search-terms were used to identify studies on advances in tumour endoprostheses: advances tumour endoprostheses, tumour endoprosthesis, tumour megaprosthesis, prosthetic reconstruction AND

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Paul L Rodham Academic Department of Trauma & Orthopaedics, Leeds General Infirmary, Leeds, United Kingdom of Great Britain and Northern Ireland

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Vasileios P Giannoudis Academic Department of Trauma & Orthopaedics, Leeds General Infirmary, Leeds, United Kingdom of Great Britain and Northern Ireland

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Nikolaos K Kanakaris Academic Department of Trauma & Orthopaedics, Leeds General Infirmary, Leeds, United Kingdom of Great Britain and Northern Ireland
Department of Trauma & Orthopaedics, University of Leeds, Leeds, United Kingdom of Great Britain and Northern Ireland

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Peter V Giannoudis Academic Department of Trauma & Orthopaedics, Leeds General Infirmary, Leeds, United Kingdom of Great Britain and Northern Ireland

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and healing in high-risk fractures such as peri-prosthetic femoral fractures, or in improving the biological activity of an atrophic non-union ( 4 , 5 , 6 , 7 ). Irrespective of the aim, successful healing with bone grafts can be considered using

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E Carlos Rodríguez-Merchán Department of Orthopaedic Surgery, La Paz University Hospital, Madrid, Spain
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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. , predicting the size of prosthetic components for each patient before implanting TKA is crucial for avoiding the excessive costs associated with additional surgical trays and the morbidity associated with imperfect sizing ( 10 ). Kunze et al. demonstrated

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Gösta Ullmark Länssjukhuset i Gävle, Sweden

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, malunion or a failed hip arthroplasty and eleven times increased for prosthetic instability. The national Swedish Hip Register 6 has reported an increasing risk for dislocation leading to revision surgery after repeated hip surgery. Dislocation

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Charles Rivière Clinique du Sport, Bordeaux-Mérignac, France
Personalized Arthroplasty Society, Atlanta, Georgia, USA

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William Jackson Personalized Arthroplasty Society, Atlanta, Georgia, USA
Nuffield Orthopaedic Centre, Headington, Oxford, UK

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Loïc Villet Clinique du Sport, Bordeaux-Mérignac, France
Personalized Arthroplasty Society, Atlanta, Georgia, USA

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Sivan Sivaloganathan Personalized Arthroplasty Society, Atlanta, Georgia, USA
South-West London Elective Orthopaedic Centre, Epsom, UK

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Yaron Barziv Personalized Arthroplasty Society, Atlanta, Georgia, USA
Shamir Medical Center, Zriffin, Israel

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Pascal-André Vendittoli Personalized Arthroplasty Society, Atlanta, Georgia, USA
Département de Chirurgie, Université de Montréal, Hôpital Maisonneuve-Rosemont, Montréal, Québec, Canada

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’ extreme anatomy with KA (unrestricted) could carry the risk of generating potentially suboptimal prosthetic kinetics 6 with subsequent complications (accelerated polyethylene wear and/or implant loosening). On the other hand, such fear remains without

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

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E. Carlos Rodríguez-Merchán Department of Orthopaedic Surgery, La Paz University Hospital-IdiPaz, Madrid, Spain

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infection, instability, poor position of the prosthetic components and soft-tissue impingement. Patellar clunk syndrome (PCS) has traditionally been associated with posterior-stabilised (PS) implants. PCS typically occurs within the first year after

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Philip F. Dobson Trauma and Orthopaedic Surgery, Royal Victoria Infirmary, Newcastle, UK

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Michael R. Reed Trauma and Orthopaedic Surgery, Royal Victoria Infirmary, Newcastle, UK

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with a three-fold mortality rate at one year. The overall incidence of SSI following primary total hip arthroplasty (THA) is between 0.2% and 2.2% 2 and rates of deep or peri-prosthetic joint infection (PJI) in THA and primary total knee

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

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Stefan Lazic South West London Elective Orthopaedic Centre, UK

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Oliver Boughton Imperial College London, UK

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Yann Wiart Theresienkrankenhauss Mannheim, Germany

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Loic Vïllet Centre de l’arthrose, Mérignac, France

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Justin Cobb Imperial College London, UK

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femur and tibia in the frontal plane. 11 , 12 This systematic positioning, the MA technique, does not take into account patient-specific knee anatomy and generated a similar biomechanically-friendly but non-physiological prosthetic knee geometry for

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Francesco Benazzo Sezione di Chirurgia Protesica ad Indirizzo Robotico – Unità di Traumatologia dello Sport, U.O Ortopedia e Traumatologia Fondazione Poliambulanza, Brescia, Lombardy, Italy
Università degli Studi di Pavia, Pavia, Lombardy, Italy

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Loris Perticarini Sezione di Chirurgia Protesica ad Indirizzo Robotico – Unità di Traumatologia dello Sport, U.O Ortopedia e Traumatologia Fondazione Poliambulanza, Brescia, Lombardy, Italy

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Eugenio Jannelli Clinica Ortopedica e Traumatologia, Fondazione IRCCS Policlinico San Matteo – Pavia, Lombardy, Italy

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Alessandro Ivone Clinica Ortopedica e Traumatologia, Fondazione IRCCS Policlinico San Matteo – Pavia, Lombardy, Italy

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Matteo Ghiara Clinica Ortopedica e Traumatologia, Fondazione IRCCS Policlinico San Matteo – Pavia, Lombardy, Italy

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Stefano Marco Paolo Rossi Sezione di Chirurgia Protesica ad Indirizzo Robotico – Unità di Traumatologia dello Sport, U.O Ortopedia e Traumatologia Fondazione Poliambulanza, Brescia, Lombardy, Italy

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the sides involved. In other words, each prosthetic design has only one type of femoral flange (‘more or less patella friendly’) where very different types of patella should adapt. Resurfacing the patella allows to play with the position of the

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