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  • knee extensor mechanism x
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Stefano Zaffagnini Istituto Ortopedico Rizzoli, Dipartimento Rizzoli Sicilia, Bagheria (PA), Italy
Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Bologna (BO), Italy

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Alberto Grassi Istituto Ortopedico Rizzoli, Dipartimento Rizzoli Sicilia, Bagheria (PA), Italy
Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Bologna (BO), Italy

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Gianluca Zocco Dipartimento di Ortopedia e Traumatologia, Department of Biomedical Sciences and Morphological and Functional Images, Scuola Ortopedia e Traumatologia, Università di Messina, Italy

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Michele Attilo Rosa Dipartimento di Ortopedia e Traumatologia, Department of Biomedical Sciences and Morphological and Functional Images, Scuola Ortopedia e Traumatologia, Università di Messina, Italy

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Cecilia Signorelli Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Bologna (BO), Italy

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Giulio Maria Marcheggiani Muccioli Istituto Ortopedico Rizzoli, Dipartimento Rizzoli Sicilia, Bagheria (PA), Italy
Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Bologna (BO), Italy

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. When the knee starts to flex, the initial contact is centred at the distal/lateral edge of the patellar articular surface, which bears against the proximal/lateral extremity of the trochlea. Thus, in early flexion there is a mechanism to ‘catch’ the

Article Type:
Research Article
Category:
Knee
DOI:
https://doi.org/10.1302/2058-5241.2.160081
Volume/Issue:
Volume 2: Issue 5
Open access
Mattia Alessio-Mazzola IRCCS Ospedale San Raffaele, Unità Clinica di Ortopedia e Traumatologia, Via Olgettina, Milan, Italy

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Giacomo Placella Università Vita-Salute San Raffaele, Via Olgettina, Milan, Italy

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

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Orlando Leone Università Vita-Salute San Raffaele, Via Olgettina, Milan, Italy

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Natasha Di Fabio Università Vita-Salute San Raffaele, Via Olgettina, Milan, Italy

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Desiree Moharamzadeh IRCCS Ospedale San Raffaele, Unità Clinica di Ortopedia e Traumatologia, Via Olgettina, Milan, Italy

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Vincenzo Salini Università Vita-Salute San Raffaele, Via Olgettina, Milan, Italy

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fixation devices are nowadays available ( 29 ) with different donor site morbidity and various potential impacts on the extensor mechanism and bony structures of the knee ( 30 ). Only three papers ( 16 , 17 , 19 ) reported details on the graft type used

Article Type:
Systematic Review
Category:
Sports & Arthroscopy
DOI:
https://doi.org/10.1530/EOR-23-0069
Volume/Issue:
Volume 8: Issue 11
Open access
Elena Gálvez-Sirvent Department of Orthopaedic Surgery, “Infanta Elena” University Hospital, Valdemoro, Madrid, Spain
Faculty of Medicine, Universidad Francisco de Vitoria, Madrid, Spain

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Aitor Ibarzábal-Gil Department of Orthopaedic Surgery, “La Paz” University Hospital, Madrid, Spain

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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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.1016/s0749-8063(0580053-2 ) 45. Judet J Judet R Lagrange J . Une technique de libération de l'appareil extenseur dans les raideurs du genou [Technique of liberation of the extensor apparatus in knee stiffness] . Memoires. Academie de Chirurgie

Article Type:
Review Article
Category:
Knee
DOI:
https://doi.org/10.1530/EOR-22-0004
Volume/Issue:
Volume 7: Issue 8
Open access
Andrea Ferrera Department of Orthopaedic and Traumatology, Orthopaedic and Trauma Centre, Turin, Italy

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Jacques Menetrey Centre de Médecine du Sport et de l’Exercice (CMSE), Swiss Olympic Medical Center, Hirslanden Clinique La Colline, Geneva, Switzerland
Division of Orthopaedic Surgery, University Hospital of Geneva, Geneva, Switzerland

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the knee. The growth of arthroplasty surgery and the subsequent technologic development of new, reliable and better performing prostheses, mostly implanted in elderly patients with low function, led to a progressive loss of interest for osteotomies

Article Type:
Review Article
Category:
Knee
DOI:
https://doi.org/10.1530/EOR-22-0057
Volume/Issue:
Volume 7: Issue 6
Open access
Erdem Sahin Cankaya Orthopedics, Ankara, Turkiye

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Reha Tandogan Department of Orthopedics & Traumatology, Cankaya Orthopedics, Ankara, Turkiye & Halic University, Istanbul, Turkiye

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Michael Liebensteiner Orthopädie, Knie & Fuß im Zentrum, Innsbruck, Austria

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Guillaume Demey Lyon Ortho Clinic, Lyon, France

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Asim Kayaalp Department of Orthopedics & Traumatology, Cankaya Orthopedics, Ankara, Turkiye & Halic University, Istanbul, Turkiye

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due to increased Q angle and the lateral vector of the quadriceps mechanism. Genu valgum >10°, mechanical axis in or outside the lateral knee compartment, and a mechanical lateral distal femoral angle (mLDFA) <84° in a skeletally immature patient have

Article Type:
Review Article
Category:
Knee
DOI:
https://doi.org/10.1530/EOR-23-0070
Volume/Issue:
Volume 9: Issue 1
Open access
Ismail Remzi Tözün Department of Orthopaedic Surgery and Traumatology, Acibadem Mehmet Ali Aydınlar University, School of Medicine, Acibadem Maslak Hospital, Sarıyer/Istanbul, Turkey

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Vahit Emre Ozden Department of Orthopaedic Surgery and Traumatology, Acibadem Mehmet Ali Aydınlar University, School of Medicine, Acibadem Maslak Hospital, Sarıyer/Istanbul, Turkey

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Goksel Dikmen Department of Orthopaedic Surgery and Traumatology, Acibadem Mehmet Ali Aydınlar University, School of Medicine, Acibadem Maslak Hospital, Sarıyer/Istanbul, Turkey

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Kayahan Karaytuğ Department of Orthopaedic Surgery and Traumatology, Acibadem Mehmet Ali Aydınlar University, School of Medicine, Acibadem Maslak Hospital, Sarıyer/Istanbul, Turkey

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-implantation. Salvage procedures Arthrodesis : The most common indications for knee arthrodesis are persistent infection after repeating staged knee revisions, massive bone or soft tissue loss, and irreparable damage of the extensor mechanism. 100 , 101 The

Article Type:
Review Article
Category:
Knee
DOI:
https://doi.org/10.1302/2058-5241.5.190069
Volume/Issue:
Volume 5: Issue 10
Open access
Gherardo Pagliazzi Department of Paediatric Orthopaedics, University of Basel Children’s Hospital, Basel, Switzerland
Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Lugano, Switzerland

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Enrico De Pieri Laboratory for Movement Analysis, University of Basel Children’s Hospital, Basel, Switzerland
Department of Biomedical Engineering, University of Basel, Basel, Switzerland

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Michèle Kläusler Department of Paediatric Orthopaedics, University of Basel Children’s Hospital, Basel, Switzerland

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Morgan Sangeux Laboratory for Movement Analysis, University of Basel Children’s Hospital, Basel, Switzerland
Murdoch Children’s Research Institute, Melbourne, Victoria, Australia
The University of Melbourne, Melbourne School of Engineering, Melbourne, Victoria, Australia

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Elke Viehweger Department of Paediatric Orthopaedics, University of Basel Children’s Hospital, Basel, Switzerland
Laboratory for Movement Analysis, University of Basel Children’s Hospital, Basel, Switzerland
Department of Biomedical Engineering, University of Basel, Basel, Switzerland

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is associated with larger forces produced by the knee extensors. Repetitive high loads on the patella might lead to an overload of the patellar ligament and the onset of Osgood–Schlatter disease. Conclusions The aim of this narrative

Article Type:
Review Article
Category:
Foot & Ankle
DOI:
https://doi.org/10.1530/EOR-21-0092
Volume/Issue:
Volume 7: Issue 1
Open access
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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surgery, polymicrobial infection or an extensor mechanism deficit, we would recommend using a static spacer. This is either a handmade cement spacer (sometimes around an arthrodesis IM nail) or an injection-moulded spacer. In summary, the literature on

Article Type:
Review Article
Category:
Hip
DOI:
https://doi.org/10.1530/EOR-21-0037
Volume/Issue:
Volume 7: Issue 2
Open access
Juan Carlos Monllau Department of Orthopaedic Surgery, Hospital del Mar, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
ICATKnee, Institut Catalá de Traumatologia i Medicina de l’Esport (ICATME), Hospital Universitari Dexeus, UAB, Barcelona, Spain

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Simone Perelli Department of Orthopaedic Surgery, Hospital del Mar, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
ICATKnee, Institut Catalá de Traumatologia i Medicina de l’Esport (ICATME), Hospital Universitari Dexeus, UAB, Barcelona, Spain

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Giuseppe Gianluca Costa Orthopaedic Surgery Department, Ospedale Umberto I, Enna, Italy

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posterolateral bundle ( 58 ). Gait analysis may reveal the presence of a valgus/varus thrust or hyperextension, which may be indicative of a more complex structural problem that should be addressed prior to any revision. Likewise, extensor mechanism dysfunction

Article Type:
Review Article
Category:
General Orthopaedics
DOI:
https://doi.org/10.1530/EOR-23-0037
Volume/Issue:
Volume 8: Issue 5
Open access
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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indication for amputation surgery. However, there is still low evidence to clearly decide whether to choose knee disarticulation (KDA) instead of transfemoral amputation (TFA) or transtibial amputation (TTA) instead of partial foot amputation (PFA) based on

Article Type:
Review Article
Category:
Trauma
DOI:
https://doi.org/10.1302/2058-5241.5.190070
Volume/Issue:
Volume 5: Issue 10
Open access