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

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review the various prosthetic knee hinge models that have been used since 1975, with the purpose of analysing their indications and results. Table 1. Summary of hinge knee prosthesis designs published in the literature since 1975 Design

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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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Carlos Kalbakdij-Sánchez Department of Orthopaedic Surgery, Emirates Specialty Hospital, Dubai Healthcare City, Dubai, UAE

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develop musculoskeletal diseases such as osteoarthritis (OA) of the knee ( 3 ). Total knee arthroplasty (TKA) is a technique that offers excellent results in patients with degenerative OA of the knee ( 4 , 5 , 6 ). However, there is very little

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

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and prediction tool > 10; proximity to hospital; and private insurance). 6 Is outpatient TKA safe? Outpatient TKA has been shown to be safe, has a low rate of hospital readmission and is economically advantageous. In fact, clinical results

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

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

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revision rates. The aim of this article is to analyse the indications, technical issues, and results of UKA. Indications for UKA The best indication for UKA is painful OA in an isolated tibiofemoral compartment (medial or lateral). Lateral

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Jonathan G. Robin Box Hill Hospital, Eastern Health Network, Australia

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Philippe Neyret Lyon 1 University, France

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been shown to have satisfactory short- and long-term clinical results. 3 - 13 In contrast with the past where a varus thrust and instability were contra-indications to HTO owing to reported inferior results, 14 , 15 more

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

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

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

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loosening, and it can be iatrogenic as the result of implant removal. 3 The purpose of this article is to review the treatment of bone deficiencies during rTKA, the various therapeutic options currently available and their results. Preoperative

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

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also result in a stiff TKA. 7 , 12 , 20 Bédard et al found that all patients from a cohort of 34 stiff TKAs had internal rotation of the femoral or tibial components on computed tomography (CT) scan, which resolved following revision surgery and

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Claudio Legnani IRCCS Istituto Ortopedico Galeazzi, Sports Traumatology and Minimally Invasive Articular Surgery Center, Milan Italy

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Andrea Parente IRCCS Istituto Ortopedico Galeazzi, Hip and Knee Arthroplasty Surgery Center, Milan, Italy

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Franco Parente IRCCS Istituto Ortopedico Galeazzi, Hip and Knee Arthroplasty Surgery Center, Milan, Italy

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Alberto Ventura IRCCS Istituto Ortopedico Galeazzi, Sports Traumatology and Minimally Invasive Articular Surgery Center, Milan Italy

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, through a systematic review of the literature, on UKR following failed HTO, highlighting indications, results and possible complications of this therapeutic approach. It was hypothesized that this procedure would be safe and effective in providing

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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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. They noted a significant correlation between good clinical results and good alignment. In four of their five failures, the tibial component was positioned in varus. Denham and Bishop, in a 1978 study of biomechanics in relation to knee reconstruction

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Hee-Nee Pang Department of Orthopaedic Surgery, Singapore General Hospital, Singapore and Division of Orthopaedic Surgery, London Health Sciences Centre, London, Ontario, Canada

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Hamid Rahmatullah Bin Abd Razak Department of Orthopaedic Surgery, Singapore General Hospital, Singapore

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Stephen Petis Division of Orthopaedic Surgery, London Health Sciences Centre, London, Ontario, Canada

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Douglas D. R. Naudie Division of Orthopaedic Surgery, London Health Sciences Centre, London, Ontario, Canada

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Steven J. MacDonald Division of Orthopaedic Surgery, London Health Sciences Centre, London, Ontario, Canada

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a rise in the incidence of revision TKA. In the current literature, the most common reasons for revision TKA are aseptic loosening, usually as a result of wear, and infection. 2 , 5 - 8 These, together with instability and stiffness, account for

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