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Megan Conti Mica University of Chicago, Chicago, Illinois, USA
Department of Orthopedics, AZ Monica, Deurne, Belgium
Department of Orthopedics, AZ Monica, Deurne, and University Hospital Antwerp, Edegem, Belgium

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Pieter Caekebeke University of Chicago, Chicago, Illinois, USA
Department of Orthopedics, AZ Monica, Deurne, Belgium
Department of Orthopedics, AZ Monica, Deurne, and University Hospital Antwerp, Edegem, Belgium

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Roger van Riet University of Chicago, Chicago, Illinois, USA
Department of Orthopedics, AZ Monica, Deurne, Belgium
Department of Orthopedics, AZ Monica, Deurne, and University Hospital Antwerp, Edegem, Belgium

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Introduction Posterolateral rotatory instability (PLRI) was first described by O’Driscoll et al, 1 and while it is relatively uncommon, it is the most common form of chronic elbow instability. The lateral collateral ligament (LCL) complex

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Patrick Goetti Department of Orthopaedics and Traumatology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland

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Patrick J. Denard Department of Orthopaedic & Rehabilitation, Oregon Health & Science University, Portland, Oregon, USA

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Philippe Collin Centre Hospitalier Privé Saint-Grégoire (Vivalto Santé), Saint- Grégoire, France

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Mohamed Ibrahim Department of Orthopaedics and Trauma Surgery, Faculty of Medicine, Fayoum University, Fayoum, Egypt

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Pierre Hoffmeyer Hirslanden Clinique des Grangettes, Geneva, Switzerland

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Alexandre Lädermann Division of Orthopaedics and Trauma Surgery, La Tour Hospital, Meyrin, Switzerland
Faculty of Medicine, University of Geneva, Geneva, Switzerland
Division of Orthopaedics and Trauma Surgery, Department of Surgery, Geneva University Hospitals, Geneva, Switzerland

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a lever arm on the joint. To be efficient, such a system requires a stable fulcrum. The necessary stability is provided by static and dynamic factors such as bony contours, ligaments, labrum, capsule, etc. The specificity of biomechanically

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Joaquín Sanchez-Sotelo Mayo Clinic, Rochester, Minnesota, USA

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Mark Morrey Mayo Clinic, Rochester, Minnesota, USA

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the medial collateral ligament? What is the best exposure for the more complex cases? What is the role of external fixation, and should it be dynamic or static? What if there is an associated Essex-Lopresti injury? Do I add prophylaxis to prevent

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Felix H. Savoie Tulane University, New Orleans, Louisiana, USA

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Michael O’Brien Tulane University, New Orleans, Louisiana, USA

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, valgus instability may also occur after traumatic dislocations with fracture. Overall, however, injury to the medial ulnar collateral ligament (MUCL) has become increasingly common. 1 Waris 2 first described injuries to the MUCL of the elbow in

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Evrim Sirin Marmara University Pendik Research and Teaching Hospital, Department of Orthopaedics and Traumatology, Turkey

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Nuri Aydin Istanbul University - Cerrahpasa. Cerrahpasa School of Medicine, Department of Orthopaedics and Traumatology, Turkey

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Osman Mert Topkar Marmara University Pendik Research and Teaching Hospital, Department of Orthopaedics and Traumatology, Turkey

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girdle. 4 These are mainly superior, inferior, anterior and posterior ligaments. Their main function is reinforcement of the capsule surrounding the joint. The AC and CC (coracoclavicular) ligaments are the static stabilizers whereas the deltoid and

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Raul Barco Shoulder & Elbow Unit, Hospital Universitario La Paz, Paseo de la Castellana 261, Madrid 28046, Spain

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Samuel A. Antuña Shoulder & Elbow Unit, Hospital Universitario La Paz, Paseo de la Castellana 261, Madrid 28046, Spain

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collateral ligament (MCL) insufficiency, and, of those, some may have chronic signs of impingement, also known as ‘chronic valgus overload syndrome’. Acute medial elbow instability is usually a distinct and obvious diagnosis, but progressive attenuation and

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Gazi Huri Department of Orthopaedics and Traumatology, Hacettepe University, Ankara, Turkey

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Mehmet Kaymakoglu Department of Orthopaedics and Traumatology, Hacettepe University, Ankara, Turkey

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Nickolas Garbis Department of Orthopaedics and Traumatology, Loyola University, Chicago, USA

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site in rotator cuff tear patients. Nearly 60 years later, Clark and Harryman published a detailed anatomical study of the rotator cuff and described a fibrous tissue which originates from the deep layer of coracohumeral ligament and moves along the

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Anna E van der Windt Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, University Medical Center Rotterdam, The Netherlands

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Lisette C Langenberg Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, University Medical Center Rotterdam, The Netherlands

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Joost W Colaris Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, University Medical Center Rotterdam, The Netherlands

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Denise Eygendaal Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, University Medical Center Rotterdam, The Netherlands

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elbow joint, secondary to the collateral ligaments and coronoid process. The management of radial head fractures encompasses a spectrum of treatment options, spanning from conservative methods to surgical procedures such as internal fixation

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Giovanni Di Giacomo Concordia Hospital for Special Surgery Rome, Italy

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Luigi Piscitelli Concordia Hospital for Special Surgery Rome, Italy

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Mattia Pugliese Università degli Studi di Roma La Sapienza, Dipartimento di Medicina Sperimentale, Trauma and Orthopaedics, Rome, Italy

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glenohumeral joint, mainly preventing inferior dislocation. 2 , 3 The long head of the biceps tendon, 4 the rotator interval capsule and the coracohumeral ligament, 5 located in an antero-superior position relative to the humeral head, add

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John Edwin Kings College Hospital, London, UK

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Shahbaz Ahmed Pulvertaft Hand Centre, Royal Derby Hospital, Derby, UK

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Shobhit Verma Kings College Hospital, London, UK

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Graham Tytherleigh-Strong Cambridge University Hospitals, UK

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Karthik Karuppaiah Kings College Hospital, London, UK

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Joydeep Sinha Kings College Hospital, London, UK

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sternoclavicular (SC) ligaments, the costoclavicular (CC) or rhomboid ligament and the interclavicular ligament provide stability to the shallow articular surfaces. 1 The bony articulation between the medial end of the clavicle and the manubrium is < 50%, thus

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