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  1. We conducted a systematic review of the published literature to assess the accuracy of Magnetic Resonance Imaging (MRI) in establishing the presence of ramp lesions (RLs) in Anterior Cruciate Ligament (ACL) de...

    Authors: José Moreira, Margarida Almeida, Nuno Lunet and Manuel Gutierres

    Citation: Journal of Experimental Orthopaedics 2020 7:71

    Content type: Review Paper

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  2. An increased posterior tibia plateau angle is associated with increased risk for anterior cruciate ligament injury and re-rupture after reconstruction. The aims of this study were to determine whether the tibi...

    Authors: Michèle N. J. Keizer, Juha M. Hijmans, Alli Gokeler, Egbert Otten and Reinoud W. Brouwer

    Citation: Journal of Experimental Orthopaedics 2020 7:69

    Content type: Original Paper

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  3. Open or fenestrated interference screw design that allow bone ingrowth is a concept for improved bone healing to softtissue graft and bone filling in bone tunnels after anterior cruciate ligament reconstructio...

    Authors: Martin Lind, Torsten Nielsen, Ole Gade Sørensen, Bjarne Mygind-Klavsen, Peter Faunø and Stacy Leake-Gardner

    Citation: Journal of Experimental Orthopaedics 2020 7:68

    Content type: Original Paper

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  4. Instability of the pubic symphysis often results in a poor outcome and reduced mobility of the patient. In some cases, an arthrodesis of the pubic symphysis is required. Until today, there is no data published...

    Authors: Sascha J. Hopp, Antonius Pizanis, Jeremy Briem, Jill Hahner, Laura Mettelsiefen, Steven C. Herath, Tina Histing, Tim Pohlemann and Tobias Fritz

    Citation: Journal of Experimental Orthopaedics 2020 7:67

    Content type: Hypothesis

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  5. Unstable ankle fractures with associated syndesmotic injury are of considerable morbidity in the professional athlete population. The use of dynamic suture button versus static syndesmotic screws fixation, reh...

    Authors: Pieter D’Hooghe and Motasem Salameh

    Citation: Journal of Experimental Orthopaedics 2020 7:66

    Content type: Commentary

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  6. The joint line convergence angle (JLCA) has a normal range between 0° to 2°, which increases in magnitude depending on the severity and stage of osteoarthritis in the knee.

    Authors: Grégoire Micicoi, Raghbir Khakha, Kristian Kley, Adrian Wilson, Simone Cerciello and Matthieu Ollivier

    Citation: Journal of Experimental Orthopaedics 2020 7:65

    Content type: Review Paper

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  7. Platelet rich plasma (PRP) is widely used in orthopaedics, but is still heavily debated. Therefore, a survey among the German “Working Group for Clinical Tissue Regeneration” of the German Society of Orthopaed...

    Authors: T. Tischer, G. Bode, M. Buhs, B. Marquass, S. Nehrer, S. Vogt, W. Zinser, P. Angele, G. Spahn, G. H. Welsch, P. Niemeyer and H. Madry

    Citation: Journal of Experimental Orthopaedics 2020 7:64

    Content type: Original Paper

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  8. A 68-year-old female suffering from habitual patellar dislocations following a mal-positioned total knee arthroplasty (TKA) was successfully treated with a biplanar closed wedge distal femoral osteotomy (CWDFO...

    Authors: Hidetomo Saito, Kimio Saito, Yoichi Shimada, Toshiaki Yamamura, Takahiro Sato, Koji Nozaka, Hiroaki Kijima, Masashi Fujii, Tetsuya Kawano and Naohisa Miyakoshi

    Citation: Journal of Experimental Orthopaedics 2020 7:63

    Content type: Case Report

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  9. The goal of total knee arthroplasty (TKA) surgery is to provide a stable and functional knee joint using current implant designs. Several alignment philosophies and surgical techniques have been introduced to ...

    Authors: Lorenzo Deveza, Khatereh Hajizadeh, Benjamin Song and Ilwhan Park

    Citation: Journal of Experimental Orthopaedics 2020 7:62

    Content type: Hypothesis

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  10. To document the status-quo of orthopaedic health-care services as the COVID-19 pandemic recedes, and to determine the rate of resumption of orthopaedic surgery in the German-speaking countries in May 2020.

    Authors: M. C. Liebensteiner, I. Khosravi, M. T. Hirschmann, P. R. Heuberer, M. Saffarini and M. Thaler

    Citation: Journal of Experimental Orthopaedics 2020 7:61

    Content type: Review Paper

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  11. While most Achilles tendon ruptures are dramatic and diagnosed quickly, some are missed, with a risk of becoming chronic. A chronic Achilles tendon rupture is defined as a rupture that has been left untreated ...

    Authors: Niklas Nilsson, Katarina Nilsson Helander, Eric Hamrin Senorski, Anna Holm, Jón Karlsson, Mikael Svensson and Olof Westin

    Citation: Journal of Experimental Orthopaedics 2020 7:60

    Content type: Original Paper

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  12. Low-field MRI, allowing imaging in supine and weight-bearing position, may be utilized as a non-invasive and affordable tool to differentiate between causes of dissatisfaction after TKA (‘problematic TKA’). Ho...

    Authors: Femke F. Schröder, Corine E. Post, Sjoerd M. van Raak, Frank F. J. Simonis, Frank-Christiaan B. M. Wagenaar, Rianne M. H. A. Huis in’t Veld and Nico Verdonschot

    Citation: Journal of Experimental Orthopaedics 2020 7:59

    Content type: Original Paper

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  13. The European Society for Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA) identified the need to develop a competency-based core curriculum for ESSKA specialists, against which all their educational a...

    Authors: Michael Taylor Ross and Martin Lind

    Citation: Journal of Experimental Orthopaedics 2020 7:58

    Content type: Original Paper

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  14. ESSKA is constantly committed to promoting the improvement of scientific quality through the publication of books and the organization of dedicated conferences. In line with this commitment, this interview pap...

    Authors: Jon Karlsson, Bruce Reider, Edward M. Wojtys and Stefano Zaffagnini

    Citation: Journal of Experimental Orthopaedics 2020 7:57

    Content type: Review Paper

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  15. Multiligament injuries of the knee (MLKI), remain an infrequent pathology especially in developed countries compared to mono-ligament lesions. In Colombia, MLKI is frequent due to the high accident rate on mot...

    Authors: Manuel F. Mosquera, Alejandro Jaramillo, Ricardo Gil and Yessica Gonzalez

    Citation: Journal of Experimental Orthopaedics 2020 7:56

    Content type: Review Paper

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  16. The menisci represent indispensable intraarticular components of a well-functioning knee joint. Sports activities, traumatic incidents, or simply degenerative conditions can cause meniscal injuries, which ofte...

    Authors: Philipp W. Winkler, Benjamin B. Rothrauff, Rafael A. Buerba, Neha Shah, Stefano Zaffagnini, Peter Alexander and Volker Musahl

    Citation: Journal of Experimental Orthopaedics 2020 7:55

    Content type: Review Paper

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  17. Ankle sprain injury rate is reported to be higher towards the end of a football match. Muscle fatigue may contribute to the delayed muscle reaction and subsequent injury. This study investigated the ankle musc...

    Authors: Daniel T. P. Fong, Wing-Ching Leung, Kam-Ming Mok and Patrick S. H. Yung

    Citation: Journal of Experimental Orthopaedics 2020 7:54

    Content type: Original Paper

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  18. Despite the evidence on the role of gravity stress test to access the instability of other ankle injuries, there is limited literature regarding gravity stress on the lateral ankle ligament’s insufficiency. Th...

    Authors: F. Guerra-Pinto, J. Cunha, L. Sousa, T. M. Gomes, R. Andrade, X. M. Oliva, J. G. Consciência and P. R. Fernandes

    Citation: Journal of Experimental Orthopaedics 2020 7:53

    Content type: Original Paper

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  19. To provide evidence-based recommendations for patients with severe knee osteoarthritis (OA), who had their knee surgery postponed due to the COVID-19 pandemic.

    Authors: Theofilos Karasavvidis, Michael T. Hirschmann, Nanne P. Kort, Ioannis Terzidis and Trifon Totlis

    Citation: Journal of Experimental Orthopaedics 2020 7:52

    Content type: Review Paper

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  20. Dual-mobility (DM) cups are increasingly used in total hip arthroplasty (THA) but there lacks literature on their long-term results. We aimed to investigate outcomes of a fourth-generation cementless DM acetab...

    Authors: Julien Chouteau, Jean-Charles Rollier, Michel P. Bonnin, Mo Saffarini, Luca Nover, Jean-Christophe Chatelet and Laurent Jacquot

    Citation: Journal of Experimental Orthopaedics 2020 7:51

    Content type: Original Paper

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  21. The aim of our cadaveric study was to compare the mechanical properties of different parts of the quadriceps’ tendon in a load to failure analysis as compared to three other, and most common types of grafts th...

    Authors: Matthieu Chivot, Charles Pioger, Jérémy Cognault, Akash Sharma, Regis Pailhé, Etienne Cavaignac, Matthieu Ollivier and Christophe Jacquet

    Citation: Journal of Experimental Orthopaedics 2020 7:50

    Content type: Original Paper

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  22. Although platelet-rich plasma (PRP) therapy has become an increasingly popular treatment for sports-related injuries, the molecular mechanisms of PRP on tissue healing process remain poorly understood. The aim...

    Authors: Yohei Kobayashi, Yoshitomo Saita, Tomoiku Takaku, Tomomasa Yokomizo, Hirofumi Nishio, Hiroshi Ikeda, Yuji Takazawa, Masashi Nagao, Kazuo Kaneko and Norio Komatsu

    Citation: Journal of Experimental Orthopaedics 2020 7:49

    Content type: Original Paper

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  23. Upon anterior cruciate ligament (ACL) rupture, reconstruction is often required, with the hamstring tendon autograft as most widely used treatment. Post-operative autograft remodeling enhances graft rupture ri...

    Authors: Marc van Vijven, Bart van Groningen, Joyce N. Kimenai, Maria C. van der Steen, Marina van Doeselaar, Rob P. A. Janssen, Keita Ito and Jasper Foolen

    Citation: Journal of Experimental Orthopaedics 2020 7:48

    Content type: Original Paper

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  24. Alteration of the postoperative frontal mechanical leg axis is a known problem in femoral rotational osteotomies. However, the maintenance of the sagittal mechanical leg axis seems also important. Goal of this...

    Authors: Lukas Jud, Octavian Andronic, Lazaros Vlachopoulos, Sandro F. Fucentese and Patrick O. Zingg

    Citation: Journal of Experimental Orthopaedics 2020 7:46

    Content type: Original Paper

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  25. To evaluate if High-volume Image-guided Injection (HVIGI)-treatment for chronic mid-portion Achilles tendinopathy (AT) improve function and reduce pain at 12-months follow-up.

    Authors: Torsten Grønbech Nielsen, Lene Lindberg Miller, Bjarne Mygind-Klavsen and Martin Lind

    Citation: Journal of Experimental Orthopaedics 2020 7:45

    Content type: Original Paper

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  26. The aim was to investigate the rate of athletes still active at their pre-injury sports level two years after arthroscopic treatment for femoroacetabular impingement syndrome (FAIS), and examine this between d...

    Authors: Josefin Abrahamson, Ida Lindman, Mikael Sansone, Axel Öhlin, Pall Jonasson, Jón Karlsson and Adad Baranto

    Citation: Journal of Experimental Orthopaedics 2020 7:44

    Content type: Original Paper

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  27. To determine the most reliable reference axis for the femoral component rotation in TKA patients by comparing the trochlear anterior line (TAL) and the femoral anterior tangent line (FAT). To evaluate the vari...

    Authors: Ji-Hoon Nam, Yong-Gon Koh, Paul Shinil Kim, Kiwon Kang and Kyoung-Tak Kang

    Citation: Journal of Experimental Orthopaedics 2020 7:43

    Content type: Original Paper

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  28. Patient-specific instrumentation (PSI) may potentially improve unicompartmental knee arthroplasty (UKA) implant positioning and alignment. The purpose of this study was to compare early radiographic coronal al...

    Authors: Houssam Kalache, Jacobus H. Müller, Mo Saffarini and Evrard Gancel

    Citation: Journal of Experimental Orthopaedics 2020 7:42

    Content type: Research Paper

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  29. Implant surface integrity and cement bonding are assumed to be sufficient in primary total knee replacements to stabilize implants for extended wear without concerns over delamination and loosening. Yet there ...

    Authors: David Lionberger, Laura Wattenbarger, Christopher Conlon and Timothy J. Walker

    Citation: Journal of Experimental Orthopaedics 2020 7:41

    Content type: Research

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  30. Intraarticular (IA) hyaluronic acid (HA) injection is used to reduce pain and improve mobility in knee osteoarthritis (OA). Little is known about histopathological changes underlying HA efficacy. This study in...

    Authors: John Lokhnauth, Kevin E. Driscoll, Alison Bendele, Faizan Niazi, Alfred Liang and Crilles C. Larsen

    Citation: Journal of Experimental Orthopaedics 2020 7:39

    Content type: Research Paper

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  31. The aim of this study was to compare the biomechanics of a four-strand hamstring graft with a tripled semitendinosus graft, with and without adjustable extra-cortical button fixation, in a cadaveric model.

    Authors: Frans J. A. Hagemans, Karlijn L. J. van Overvest, Jacco A. C. Zijl and Duncan E. Meuffels

    Citation: Journal of Experimental Orthopaedics 2020 7:37

    Content type: Research

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  32. Selection of a meniscus allograft with a similar three-dimensional (3D) size is essential for good clinical results in meniscus allograft surgery. Direct meniscus sizing by MRI scan is not possible in total me...

    Authors: Silvan Beeler, Lazaros Vlachopoulos, Lukas Jud, Reto Sutter, Tobias Götschi, Philipp Fürnstahl and Sandro F. Fucentese

    Citation: Journal of Experimental Orthopaedics 2020 7:36

    Content type: Research

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  33. The current coronavirus disease 2019 (COVID-19) pandemic has revolutionized global healthcare in an unprecedented way and with unimaginable repercussions. Resource reallocation, socioeconomic confinement and r...

    Authors: Luca Ambrosio, Gianluca Vadalà, Fabrizio Russo, Rocco Papalia and Vincenzo Denaro

    Citation: Journal of Experimental Orthopaedics 2020 7:35

    Content type: Review Paper

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  34. An amendment to this paper has been published and can be accessed via the original article.

    Authors: Ricardo de Paula Leite Cury, Artur Mistieri Simabukuro, Victor de Marques Oliveira, Diego Escudeiro, Pedro Baches Jorge, Fabrício Roberto Severino and Luiz Gabriel Betoni Guglielmetti

    Citation: Journal of Experimental Orthopaedics 2020 7:33

    Content type: Correction

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    The original article was published in Journal of Experimental Orthopaedics 2020 7:11

  35. It has been reported that there is no correlation between anterior tibia translation (ATT) in passive and dynamic situations. Passive ATT (ATTp) may be different to dynamic ATT (ATTd) due to muscle activation ...

    Authors: Michèle N. J. Keizer, Juha M. Hijmans, Alli Gokeler, Anne Benjaminse and Egbert Otten

    Citation: Journal of Experimental Orthopaedics 2020 7:32

    Content type: Research

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  36. To evaluate the intra and interobserver reproducibility of a new system that assesses the three-dimensional humero-scapulo-thoracic kinematics using wearable technology in an outpatient setting. To obtain norm...

    Authors: Miguel Angel Ruiz Ibán, Andrea Paniagua Gonzalez, Marco Muraccini, Cristina Asenjo Gismero, Alessandro Varini, Antonella Berardi and Matteo Mantovani

    Citation: Journal of Experimental Orthopaedics 2020 7:31

    Content type: Research

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  37. Antibacterial iodine-supported titanium has an anodized oxide layer; thus, it can be expected to have a higher osteoconductivity than untreated titanium. This study aimed to compare the osteoconductivity betwe...

    Authors: Takashi Ota, Satoru Demura, Satoshi Kato, Katsuhito Yoshioka, Hiroyuki Hayashi, Kei Inoue, Kazuya Shinmura, Noriaki Yokogawa, Toshiharu Shirai, Hideki Murakami and Hiroyuki Tsuchiya

    Citation: Journal of Experimental Orthopaedics 2020 7:29

    Content type: Research

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  38. The roadmap to elective surgery resumption after this COVID-19 pandemic should be progressive and cautious. The aim of this paper was to give recommendations and guidelines for resuming elective orthopedic sur...

    Authors: Caroline Mouton, Michael T. Hirschmann, Matthieu Ollivier, Romain Seil and Jacques Menetrey

    Citation: Journal of Experimental Orthopaedics 2020 7:28

    Content type: Review

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  39. To compare loop elongation after 5000 cycles, loop-elongation at failure, and load at failure of the fixed-loop G-Lok device and three adjustable-loop devices (UltraButton, RigidLoop Adjustable and ProCinch RT...

    Authors: Sarvpreet Singh, Sonia Ramos-Pascual, Kinga Czerbak, Muzaffar Malik, Peter J. Schranz, Anthony W. Miles and Vipul Mandalia

    Citation: Journal of Experimental Orthopaedics 2020 7:27

    Content type: Research

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  40. To gain knowledge of the repair tissue in critically sized cartilage defects using bone marrow stimulation combined with CARGEL Bioscaffold (CB) compared with bone marrow stimulation (BMS) alone in a validated...

    Authors: K. Hede, B. B. Christensen, M. L. Olesen, J. S. Thomsen, C. B. Foldager and M. C. Lind

    Citation: Journal of Experimental Orthopaedics 2020 7:26

    Content type: Research

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  41. The visualization of potentially injured anatomical structures is crucial. Lately the anterolateral ligament (ALL) and the deep structures of the iliotibial tract (ITT) have been of increased clinical interest...

    Authors: Michael Liebensteiner, Armin Runer, Christof Kranewitter, Philipp Nachtigal, Johannes Giesinger, Dietmar Dammerer and Benjamin Henninger

    Citation: Journal of Experimental Orthopaedics 2020 7:25

    Content type: Research

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  42. Although metaphyseal sleeves are usually used with stems, little is known about the exact contribution/need of the stem for the initial sleeve-bone interface stability, particularly in the femur, if the intram...

    Authors: F. Fonseca, A. Sousa and A. Completo

    Citation: Journal of Experimental Orthopaedics 2020 7:24

    Content type: Research

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  43. A considerable proportion of patients (19%) are dissatisfied after total knee arthroplasty (TKA). Possible factors contributing to this dissatisfaction are decreased posterior condylar offset (PCO) with subseq...

    Authors: W. A. M. van Lieshout, K. L. M. Koenraadt, L. H. G. J. Elmans and R. C. I. van Geenen

    Citation: Journal of Experimental Orthopaedics 2020 7:23

    Content type: Research

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  44. Partial meniscectomy can cause osteoarthritic changes in knees, as inner portion as well as peripheral portion of meniscus is important. The hypothesis of this study was that the amount of the inner resection ...

    Authors: Takehito Hirose, Tatsuo Mae, Yuta Tachibana, Tomoki Ohori, Hiromichi Fujie, Hideki Yoshikawa and Ken Nakata

    Citation: Journal of Experimental Orthopaedics 2020 7:21

    Content type: Research

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