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Fan Wu Experimental Surgery and Regenerative Medicine, Department of Surgery, Ludwig-Maximilians-University (LMU), Munich, Germany

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Michael Nerlich Department of Trauma Surgery, University Regensburg Medical Center, Regensburg, Germany

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Denitsa Docheva Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Center, Regensburg, Germany and Department of Medical Biology, Medical University-Plovdiv, Plovdiv, Bulgaria

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tendon, thereby restoring tendon stiffness and tensile strength. 78 , 79 After approximately ten weeks, the maturation stage occurs, which includes an increase of collagen fibril crosslinking and the formation of a tendon-like tissue. 80 In

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Paul Hoogervorst OLVG Amsterdam, Department of Orthopaedics and Traumatology, Amsterdam

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Peter van Schie OLVG Amsterdam, Department of Orthopaedics and Traumatology, Amsterdam

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Michel PJ van den Bekerom OLVG Amsterdam, Department of Orthopaedics and Traumatology, Amsterdam

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comparing anterior and superior plate placement showed that, for all fracture patterns, more construct stiffness was achieved in axial compression and with a superior plate, whereas more construct stiffness was achieved in cantilever bending with an anterior

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Faustine Vallon Division of Orthopaedic and Trauma Surgery, Department of Surgery, University Hospitals of Geneva, Switzerland

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Axel Gamulin Division of Orthopaedic and Trauma Surgery, Department of Surgery, University Hospitals of Geneva, Switzerland

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biomechanical strength and stiffness of two-hole and four-hole DHS constructs used for the fixation of unstable trochanteric fractures (equivalent to AO-OTA 31-A2 fractures) created in cadaveric femora. 39 They found that the two-hole DHS was

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Bryant Ho Hinsdale Orthopaedics, Hinsdale, Illinois, USA

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Judith Baumhauer University of Rochester, Department of Orthopaedics, Rochester, New York, USA

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, primarily with dorsiflexion. Clinical evaluation Patients typically present with a history of pain and stiffness that is worse with activities, particularly with first MTP dorsiflexion involvement, such as stairs, running or push-ups. Discomfort during

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

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( Fig. 3 ). The loss of mineralisation and increased bone volume lowers the tissue stiffness (Young’s modulus) but increases the structural stiffness. Fig. 2. Proposed scheme for the development of bone marrow lesions and progression of

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Philippe Hernigou Hôpital Henri Mondor, University of Paris-Est, France

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François Roubineau Hôpital Henri Mondor, University of Paris-Est, France

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Charlie Bouthors Hôpital Henri Mondor, University of Paris-Est, France

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Charles-Henri Flouzat-Lachaniette Hôpital Henri Mondor, University of Paris-Est, France

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back, but this is not always achieved and a number of factors may contribute to this. Intra-operatively the titanium shell can deform diametrically because the titanium shell has a thinner wall than the ceramic, and the material stiffness of titanium is

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Lorenz Pisecky Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria

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Matthias Luger Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria

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Antonio Klasan Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria

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Tobias Gotterbarm Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria

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Matthias C. Klotz Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria

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Rainer Hochgatterer Department for Orthopaedics and Traumatology, Kepler University Hospital GmbH, Johannes Kepler University Linz, Linz, Austria

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did not decrease over the test period of six weeks. 28 In 2007, Konkel et al presented a study group with 48 toes which were successfully treated with absorbable pins. 29 In 2011, the same group of authors showed a superiority of the stiffer

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Olga D. Savvidou First Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, School of Medicine, ‘ATTIKON’ University General Hospital, Athens, Hellenic Republic, Greece

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Panagiotis Koutsouradis Department of Orthopaedic Surgery, Mediterraneo Hospital, Athens, Greece

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Angelos Kaspiris Laboratory of Molecular Pharmacology/ Sector for Bone Research, School of Health Sciences, University of Patras, Patras 26504, Greece

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Leon Naar First Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, School of Medicine, ‘ATTIKON’ University General Hospital, Athens, Hellenic Republic, Greece

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George D. Chloros First Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, School of Medicine, ‘ATTIKON’ University General Hospital, Athens, Hellenic Republic, Greece

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Panayiotis J. Papagelopoulos First Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, School of Medicine, ‘ATTIKON’ University General Hospital, Athens, Hellenic Republic, Greece

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long-term follow-up, with a mean of six years (range, 2–15 years). Ninety-one per cent of the patients were satisfied with the treatment; however, two patients were unsatisfied due to chronic stiffness and pain respectively. The mean DASH score was 2

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Nuri Aydin Istanbul University - Cerrahpasa, Cerrahpasa Medical Faculty, Orthopaedics and Traumatology Department, Istanbul, Turkey

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Mahmut Enes Kayaalp Istanbul University - Cerrahpasa, Cerrahpasa Medical Faculty, Orthopaedics and Traumatology Department, Istanbul, Turkey

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Mustafa Asansu Baltalimani Bone Diseases Training and Research Hospital, Orthopaedics and Traumatology Department, Istanbul, Turkey

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Bedri Karaismailoglu Istanbul University - Cerrahpasa, Cerrahpasa Medical Faculty, Orthopaedics and Traumatology Department, Istanbul, Turkey

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described the resulting condition as a ‘diagnostic trap’ due to its occasional occurrence and possible neglection by unwary surgeons. 4 As the duration of dislocation lengthens, patients suffer from chronic pain, stiffness, disability and decreased

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Cécile Batailler Hôpital de la Croix Rousse, Hospices Civils de Lyon, France

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Philippe Neyret Burjeel Hospital, Abu Dhabi; UAE

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Bereiter trochleoplasty and reported that the tissue in the trochlear groove remained viable. Stiffness Postoperative stiffness is a common complication, which sometimes needs a revision with arthrolysis. Its rate is in the range of 2% to 46

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