Articles

Bone ingrowth into open architecture PEEK interference screw after ACL reconstruction

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

A novel press-fit minimally-invasive symphysiodesis technique

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

Does the choice of syndesmotic screw versus suture button in ankle surgery has a silver lining? – a technical note

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

Managing intra-articular deformity in high Tibial osteotomy: a narrative review

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

Platelet-rich plasma (PRP) as therapy for cartilage, tendon and muscle damage – German working group position statement

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

Successful treatment of a habitual patellar dislocation after a total knee arthroplasty with a closing-wedge distal femoral varus osteotomy and medial patello-femoral ligament reconstruction

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

Neutral boundary alignment in total knee arthroplasty: a novel concept

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

It is not ‘business as usual’ for orthopaedic surgeons in May 2020– the Austrian-German-Swiss experience

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

The economic cost and patient-reported outcomes of chronic Achilles tendon ruptures

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

The diagnostic potential of low-field MRI in problematic total knee arthroplasties - a feasibility study

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

Defining Core competencies of the European Society for Sports Traumatology, knee surgery and arthroscopy

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

Tips and tricks for building a good paper: what editors want

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

Controversies in acute multiligamentary knee injuries (MLKI)

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

Meniscal substitution, a developing and long-awaited demand

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

Delayed ankle muscle reaction time in female amateur footballers after the first 15 min of a simulated prolonged football protocol

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

Gravity stress tibiotalar laxity evaluation with a biomedical gyroscopes device – cadaver study with progressive sectioning of lateral ankle ligaments

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

Home-based management of knee osteoarthritis during COVID-19 pandemic: literature review and evidence-based recommendations

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

Absence of instabilities and intra-prosthetic dislocations at 7 to 11 years following THA using a fourth-generation cementless dual mobility acetabular cup

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

Every layer of quadriceps tendon’s central and medial portion offers similar tensile properties than Hamstrings or Ilio-Tibial Band Grafts

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

Platelet-rich plasma (PRP) accelerates murine patellar tendon healing through enhancement of angiogenesis and collagen synthesis

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

Identifying potential patient-specific predictors for anterior cruciate ligament reconstruction outcome – a diagnostic in vitro tissue remodeling platform

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

Titanium particles damage osteocytes and inhibit osteoblast differentiation

to study the effect of titanium particles on MLO-Y4 and the effects of osteocytes alterations on osteoblasts.

Authors: Li Chen, Ziyue Wang, Wei Xu and Qirong Dong

Mal-angulation of femoral rotational osteotomies causes more postoperative sagittal mechanical leg axis deviation in supracondylar than in subtrochanteric procedures

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

The effect of high-volume image-guided injection in the chronic non-insertional Achilles tendinopathy: a retrospective case series

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

Low rate of high-level athletes maintained a return to pre-injury sports two years after arthroscopic treatment for femoroacetabular impingement syndrome

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

The femoral trochlear anterior line is a better alternative intra-operative reference compared to femoral anterior tangent line for femoral rotation in both genders in total knee arthroplasty

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

Patient-specific instrumentation does not improve tibial component coronal alignment for medial UKA compared to conventional instrumentation

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

Factors affecting aseptic loosening in primary total knee replacements: an in vitro study

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

PET/MRI reveals ongoing metabolic activity in ACL grafts one year post-ACL reconstruction

To use serial PET/MRI imaging to radiographically evaluate the metabolic activity of the ACL graft over the first post-operative year.

Authors: Seth Korbin, Michael Salerno, Justice U. Achonu, Mingqian Huang, Paul Vaska, Amanda Pawlak, David E. Komatsu and James M. Paci

Viscosupplementation may preserve tibial cartilage and collagen in osteoarthritis: findings from a preclinical model of osteoarthritis

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

Low lordosis is a common finding in young lumbar disc herniation patients

The sagittal alignment of the lumbar spine and pelvis can be classified into several subtypes. It has been suggested that the risk of developing certain pathologies, such as a lumbar disc herniation (LDH) is a...

Authors: Joel Beck, Helena Brisby, Adad Baranto and Olof Westin

Four-strand hamstring graft is stiffer than a tripled semitendinosus graft in anterior cruciate ligament reconstruction: a cadaveric study

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

Meniscus sizing using three-dimensional models of the ipsilateral tibia plateau based on CT scans – an experimental study of a new sizing approach

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

The role of the orthopaedic surgeon in the COVID-19 era: cautions and perspectives

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

An interpretation of intraosseous perfusion physiology and the effect of steroids

Authors: Michael Beverly and David Murray

Correction to: Anteromedial positioning of the femoral tunnel in Anterior Cruciate Ligament reconstruction is the best option to avoid revision: a single surgeon registry

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

Healthy subjects with lax knees use less knee flexion rather than muscle control to limit anterior tibia translation during landing

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

Evaluation of a novel portable three-dimensional scapular kinematics assessment system with inter and intraobserver reproducibility and normative data for healthy adults

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

Tibial condylar valgus osteotomy – indications and technique

To describe the indications for, and surgical technique of, tibial condylar valgus osteotomy (TCVO).

Authors: Umito Kuwashima, Akihiko Yonekura, Masafumi Itoh, Junya Itou and Ken Okazaki

A comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing

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

COVID-19 - ESSKA guidelines and recommendations for resuming elective surgery

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

Biomechanical testing of fixed and adjustable femoral cortical suspension devices for ACL reconstruction under high loads and extended cyclic loading

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

CARGEL Bioscaffold improves cartilage repair tissue after bone marrow stimulation in a minipig model

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

MRI visibility of the anterolateral ligament and the deep structures of the iliotibial tract

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

Femoral revision knee Arthroplasty with Metaphyseal sleeves: the use of a stem is not mandatory of a structural point of view

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

Flexion First Balancer: description of new technique in TKA to reproduce joint line and pre-disease mechanical alignment

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

Non-invasive computer navigation can quantify the pivot shift maneuver with good to excellent reliability in healthy volunteers

The aim of this study was to determine the inter- and intra-observer reliability of knee laxity assessment using a non-invasive navigation system in a population of healthy young athletes. It was hypothesized ...

Authors: Edoardo Monaco, Giorgio Bruni, Sara Lo Torto, Alessandro Carrozzo, Matthew Daggett, Alessandro Annibaldi, Adnan Saithna and Andrea Ferretti

Reduction of in situ force through the meniscus with phased inner resection of medial meniscus: an experimental study in a porcine model

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

Fast Bowler’s knee – anteromedial articular impingement

To describe a series of impingement lesions found on the anterior aspect of the medial femoral condyle in international cricketers.

Authors: Michael J. Reid, Avinash Alva, Simon M. Thompson, Ranju T. Dhawan, Mary H. Jones and Andy M. Williams

Tendon regeneration and muscle hypotrophy after isolated Gracilis tendon harvesting - a pilot study

The gracilis tendon (GT) is a commonly used autologous graft in Orthopaedic surgery. The majority of information on knee function and outcomes after hamstring harvest is related to both semitendinosus and GT h...

Authors: Anne Flies, Timm Denecke, Natascha Kraus, Philipp Kruppa, Matthew T. Provencher, Roland Becker and Sebastian Kopf