Articles

Knee resurfacing with double unicompartimental arthroplasty: rationale, biomechanics, indications, surgical technique and outcomes

Authors: Sergio Romagnoli, Stefano Petrillo and Matteo Marullo

Component gap control during posterior-stabilised total knee arthroplasty using the posterior condylar pre-cut technique

Adjusting the gap lengths to ensure equal lengths in both extension and flexion during total knee arthroplasty (TKA) is important for achieving successful outcomes. We designed a new pre-cut trial component (P...

Authors: Makoto Kawasaki, Ryutaku Kaneyama, Hitoshi Suzuki, Teruaki Fujitani, Manabu Tsukamoto, Ken Sabanai, Toru Yoshioka, Nobukazu Okimoto, Ryuji Nagamine and Akinori Sakai

Ultrasound-based evaluation revealed reliable postoperative knee stability after combined acute ACL and MCL injuries

Anterior cruciate ligament (ACL) injuries are often combined with lesions of the medial collateral ligament (MCL). The aim of this study was to evaluate treatment outcome of combined acute ACL and MCL lesions ...

Authors: Patricia M. Lutz, Louisa S. Höher, Matthias J. Feucht, Jan Neumann, Daniela Junker, Klaus Wörtler, Andreas B. Imhoff and Andrea Achtnich

A novel mice model of acute flares in osteoarthritis elicited by intra-articular injection of cultured mast cells

Mast cells are multifunctional in osteoarthritis (OA), and infiltration of activated mast cells likely contributes to disease severity and progression. However, the detailed mechanisms of action are unclear. T...

Authors: Junpei Dan, Masashi Izumi, Hiroko Habuchi, Osami Habuchi, Shogo Takaya, Yusuke Kasai, Ryuzo Hayashi, Koji Aso, Takahiro Ushida and Masahiko Ikeuchi

Biomechanics of a calcar loading and a shortened tapered femoral stem: Comparative in-vitro testing of primary stability and strain distribution

The most common femoral short stems available on the market can, in principle, be divided with regard to their anchoring concepts into a calcar loading and a shortened tapered design. The purpose of this study...

Authors: Tobias Freitag, Ralf Bieger, Hartmuth Kiefer, Daniel Dornacher, Heiko Reichel, Anita Ignatius and Lutz Dürselen

The effects of vitamin D supplementation in carpal tunnel syndrome treatment outcomes: a systematic review

Vitamin D deficiency is related to carpal tunnel syndrome symptoms. Correcting vitamin D levels by supplementation was supposed to improve carpel tunnel symptoms, though there is a lack of aggregated data abou...

Authors: Chirathit Anusitviwat, Porames Suwanno and Sitthiphong Suwannaphisit

Experimental validation of a new technique for the assessment of posterior tibial translation (ABC angle) after posterior cruciate ligament rupture

The aim of this cadaver study was to evaluate an original technique for measuring posterior tibial translation based on an angle value instead of a distance value, with and without posterior stress application...

Authors: M. Severyns, M.-E. Rollet, T. Vendeuvre, S. Pesenti, A. Benzakour and J.-L. Rouvillain

The correlation between posterior tibial slope and dynamic anterior tibial translation and dynamic range of tibial rotation

The amount of passive anterior tibial translation (ATT) is known to be correlated to the amount of posterior tibial slope (PTS) in both anterior cruciate ligament-deficient and reconstructed knees. Slope-alter...

Authors: M.J.M Zee, M.N.J Keizer, L Dijkerman, J.J.A.M van Raaij, J.M. Hijmans and R.L. Diercks

Joint effusion, anteroposterior stability, muscle strength and degree of patellofemoral osteoarthritis significantly impact outcome following revision ACL reconstruction

Purpose: Effusion, impaired muscle function and knee instability are considered as some of the most important factors effecting outcome following anterior cruciate ligament reconstruction (ACL-R) but the impac...

Authors: Kathleen Andrä, Enes Kayaalp, Robert Prill, Lars Irlenbusch, Eckehard Liesaus, Tilo Trommer, Peter Ullmann and Roland Becker

Correction to: Technical note: rectangular femoral tunnel for anterior cruciate ligament reconstruction using a new ultrasonic device: a feasibility study

Authors: Romain Seil, Caroline Mouton and Christophe Jacquet

The difficulty of continuing sports activities after open-wedge high tibial osteotomy in patient with medial knee osteoarthritis: a retrospective case series at 2-year-minimum follow-up

This study aimed to investigate the rate at which patients returned to sports after open wedge high tibial osteotomy and identify the continuity of sports activity post-operatively.

Authors: Shugo Maeda, Daisuke Chiba, Eiji Sasaki, Tetsushi Oyama, Tomoyuki Sasaki, Hironori Otsuka and Yasuyuki Ishibashi

Bacterial arthritis of native joints can be successfully managed with needle arthroscopy

To assess the feasibility of needle arthroscopy for management of suspected bacterial arthritis in native joints.

Authors: Tobias Stornebrink, Stein J. Janssen, Arthur J. Kievit, Nathaniel P. Mercer, John. G. Kennedy, Sjoerd A. S. Stufkens and Gino M. M. J. Kerkhoffs

Orthobiologics and hyaluronic acid usage in the Netherlands: an electronic survey of 265 orthopaedic surgeons and sports physicians

“Biologic therapies” in the field of orthopaedic surgery and sports medicine, so called orthobiologics, have been gaining significant interest from physicians and patients, with increasing usage over the recen...

Authors: J. J. de Graeff, M. P. J. van den Bekerom, B. L. van Meer and J. A. C. Zijl

Progression of pelvic retroversion is a critical factor for clinical outcome after Opening-wedge high tibial osteotomy among elderly patients

To evaluate the clinical outcome after opening-wedge high tibial osteotomy (OWHTO) and to determine the critical factors for a poor clinical outcome after OWHTO in patients aged over 65 years.

Authors: Shuhei Otsuki, Hitoshi Wakama, Kuniaki Ikeda, Nobuhiro Okuno, Yoshinori Okamoto, Tomohiro Okayoshi, Junya Matsuyama and Masashi Neo

Subacromial resurfacing with fascia lata autograft for irreparable cuff tears

Massive and irreparable rotator cuff tears remain a major challenge for orthopaedic surgeons and several surgical options have been accepted for different patterns of irreparable cuff tears. However, the high-...

Authors: Nuno Gomes, Helder Fonte, Sara Santos and Duarte Sousa

Common animal models lack a distinct glenoid labrum: a comparative anatomy study

Development and validation of an animal model of labral healing would facilitate translation of novel surgical and biological strategies to improve glenolabral healing. The purpose of this study was to charact...

Authors: Christopher J. Como, Benjamin B. Rothrauff, Peter G. Alexander, Albert Lin and Volker Musahl

Cell-free osteochondral scaffolds provide a substantial clinical benefit in the treatment of osteochondral defects at a minimum follow-up of 5 years

The treatment of osteochondral lesions is challenging and no consensus has been established about the best option for restoring both cartilage and subchondral bone. Multilayer collagen-hydroxyapatite scaffolds...

Authors: Martina Ricci, Daniele Tradati, Alessio Maione, Francesco Mattia Uboldi, Eva Usellini and Massimo Berruto

Preliminary biomechanical cadaver study investigating a new load-sharing knee implant

One of the major contributors to the progression of knee osteoarthritis (OA) is the condition of loading in the knee joint. Innovatively designed load-sharing implants may be effective in terms of reducing joi...

Authors: Mehdi Saeidi, Piaras A. Kelly, Christian Netzel, Miriam Scadeng, Pranesh Kumar, Deborah Prendergast, Thomas Neitzert and Maziar Ramezani

The impact of first and second wave of COVID-19 on knee and hip surgeries in Sweden

To investigate the impact of COVID-19 in Sweden on rates of knee and hip surgeries.

Authors: Andrea Dell’Isola, Ali Kiadaliri, Aleksandra Turkiewicz, Velocity Hughes, Karin Magnusson, Jos Runhaar, Sita Bierma-Zeinstra and Martin Englund

Clinical outcomes of contemporary lateral augmentation techniques in primary ACL reconstruction: a systematic review and meta-analysis

The purpose of this investigation was to systematically review the contemporary literature to determine if a lateral augmentation (LA) added to an Anterior Cruciate Ligament Reconstruction (ACLR) provides bett...

Authors: Lucas Beckers, Thiago Vivacqua, Andrew D. Firth and Alan M. J. Getgood

Administration of a selective retinoic acid receptor-γ agonist improves neuromuscular strength in a rodent model of volumetric muscle loss

Volumetric muscle loss is a uniquely challenging pathology that results in irrecoverable functional deficits. Furthermore, a breakthrough drug or bioactive factor has yet to be established that adequately impr...

Authors: Michael E. Whitely, Patrick B. Collins, Masahiro Iwamoto and Joseph C. Wenke

Tendon grafts with preserved muscle demonstrate similar biomechanical properties to tendon grafts stripped of muscular attachments: a biomechanical evaluation in a porcine model

(1) To evaluate the biomechanical properties of a porcine flexor digitorum superficialis tendon graft with preserved muscle fibers and (2) to compare these results with the biomechanical properties of a porcin...

Authors: Luis Fernando Zukanovich Funchal, Diego Costa Astur, André Luiz Almeida Pizzolatti, Arthur Paiva Grimaldi, Andrew Esteban Jimenez, Ari Digiácomo Ocampo Moré, Carlos Rodrigo de Mello Roesler and Moises Cohen

Multi-layer cell-free scaffolds for osteochondral defects of the knee: a systematic review and meta-analysis of clinical evidence

The aim of this study was to analyze the clinical results provided by multi-layer cell-free scaffolds for the treatment of knee osteochondral defects.

Authors: Angelo Boffa, Luca Solaro, Alberto Poggi, Luca Andriolo, Davide Reale and Alessandro Di Martino

The effect of static stretching exercises on hip range of motion, pain, and disability in patients with non-specific low back pain

The benefits of providing static stretching exercise targeting the hips in patients with non-specific Low Back Pain (NSLBP) are not well established. The objective of the study was to verify the effects of sta...

Authors: Mohamadreza Hatefi, Farideh Babakhani and Mohadeseh Ashrafizadeh

Excessive anterior tibial translation in the contralateral uninjured limb is significantly associated with ramp lesion in anterior cruciate ligament injury

This study aimed to evaluate the excessive anterior tibial translation (ATT) and muscle strength of patients with ramp lesions. We hypothesised that the higher ATT, lower hamstring-to-quadriceps (HQ) ratio, an...

Authors: Kazuki Asai, Junsuke Nakase, Rikuto Yoshimizu, Mitsuhiro Kimura and Hiroyuki Tsuchiya

Technical note: rectangular femoral tunnel for anterior cruciate ligament reconstruction using a new ultrasonic device: a feasibility study

The goal of this preliminary report was to show the use of novel Ultrasound (US) technology for anterior cruciate ligament (ACL) reconstruction surgery and evaluate its feasibility for the creation of a rectan...

Authors: Romain Seil, Caroline Mouton and Christophe Jacquet

The use of augmented reality for limb and component alignment in total knee arthroplasty: systematic review of the literature and clinical pilot study

A systematic review of the literature has been carried out to assess the actual evidence of the use of augmented reality in total knee arthroplasty (TKA). We then conducted a pilot clinical study to examine th...

Authors: V. Iacono, L. Farinelli, S. Natali, G. Piovan, D. Screpis, A. Gigante and C. Zorzi

Anterolateral ligament reconstruction in addition to primary double-bundle anterior cruciate ligament reconstruction for grade 3 pivot shift improves residual knee instability during surgery

High-grade pivot shift in the anterior cruciate ligament (ACL) injured knee is a risk factor for postoperative residual pivot shift. Procedures in addition to ACL reconstruction such as anterolateral ligament ...

Authors: Yusuke Kawanishi, Makoto Kobayashi, Sanshiro Yasuma, Hiroaki Fukushima, Jiro Kato, Atsunori Murase, Tetsuya Takenaga, Masahito Yoshida, Gen Kuroyanagi, Yohei Kawaguchi, Yuko Nagaya, Hideki Murakami and Masahiro Nozaki

Assessment of paradoxical anterior translation in a CR total knee prosthesis coupling dynamic RSA and FE techniques

The study aims were to assess the kinematic data, Internal-External (IE) rotation, and Antero-Posterior (AP) translation of the contact points between the femoral condyles and polyethylene insert and to develo...

Authors: Agostino Igor Mirulla, Laura Bragonzoni, Stefano Zaffagnini, Tommaso Ingrassia, Raffaele Zinno and Bernardo Innocenti

Expanded adipose derived mesenchymal stromal cells are effective in treating chronic insertional patellar tendinopathy: clinical and MRI evaluations of a pilot study

Effect of ultrasound guided injections of autologous ASCs in chronic recalcitrant patellar tendinopathy.

Authors: Miguel A. Khoury, Karim Chamari, Montassar Tabben, Khalid Alkhelaifi, Trueba Ricardo, Couto Damián and Pieter D’hooghe

A case report of femoral head fracture with osteochondral lesion treated by osteosynthesis and biomimetic scaffold: 2-year clinical and radiological follow-up

The aim of the present study was to present clinical and radiological outcome of a hip fracture-dislocation of the femoral head treated with biomimetic osteochondral scaffold.

Authors: Alessandro Casiraghi, Claudio Galante, Marco Domenicucci, Stefano Cattaneo, Andrea Achille Spreafico, Marcello Motta, Paolo Capitani and Giuseppe Milano

CT based PSI blocks for osteotomies around the knee provide accurate results when intraoperative imaging is used

Correction osteotomies around the knee are common methods for the treatment of varus or valgus malalignment of the lower extremity. In recent years, patient specific instrumentation (PSI) guides were introduce...

Authors: Peter Savov, Mara Hold, Maximilian Petri, Hauke Horstmann, Christian von Falck and Max Ettinger

Does practice of meniscus surgery change over time? A report of the 2021 ‘THE MENISCUS’ Webinar

The aim of this paper was to report the results presented in the session “Does practice of meniscus surgery change over time?” of the 2021 MENISCUS webinar held online on January 30^th 2021.

Authors: Christophe Jacquet, Caroline Mouton, Roland Becker, Hideyuki Koga, Matthieu Ollivier, Peter Verdonk, Philippe Beaufils and Romain Seil

Preliminary experience of an international orthopaedic registry: the ESSKA Paediatric Anterior Cruciate Ligament Initiative (PAMI) registry

Paediatric and adolescent ACL injuries are an emerging health burden, increasing at a higher rate than in adults. They compromise quality of life, affect knee structure and function, lead to the early developm...

Authors: Caroline Mouton, Håvard Moksnes, Rob Janssen, Christian Fink, Stefano Zaffagnini, Juan Carlos Monllau, Guri Ekås, Lars Engebretsen and Romain Seil

Influence of femoral tunnel exit on the 3D graft bending angle in anterior cruciate ligament reconstruction

To quantify the influence of the femoral tunnel exit (FTE) on the graft bending angle (GBA) and GBA-excursion throughout a full range of motion (ROM) in single-bundle anterior cruciate ligament (ACL) reconstru...

Authors: Sandro Hodel, Sylvano Mania, Lazaros Vlachopoulos, Philipp Fürnstahl and Sandro F. Fucentese

Correction to: Towards planning of osteotomy around the knee with quantitative inclusion of the adduction moment: a biomechanical approach

Authors: Margit Biehl, Philipp Damm, Adam Trepczynski, Stefan Preiss and Gian Max Salzmann

Intra-articular fibrous bands at the tibiotalar joint: diagnosis and outcomes of arthroscopic removal in 4 ankles

The authors retrieved the records of 4 patients that exhibited unusual structural anomalies or pathologies, notably the presence of a fibrous band at the anterior aspect of the tibiotalar joint, observed durin...

Authors: Philippe Beaudet, Floris van Rooij, Mo Saffarini and Alexis Nogier

The effects of exercise and active assisted cycle ergometry in post-operative total knee arthroplasty patients - a randomized controlled trial

The purpose of this study was to examine the effect of the use of an active assisted cycle ergometer as an adjunct to post-operative treatment following total knee arthroplasty.

Authors: P. Sanzo, S. Niccoli, K. Droll, D. Puskas, C. Cullinan and S. J. Lees

A comprehensive scoping review of tibial cysts after anterior cruciate ligament reconstruction

The purpose of this study was to perform a scoping review of published literature reporting on surgical management of tibial cysts which developed after ACLR.

Authors: Nuno Camelo Barbosa, João Pedro Campos, Vânia Capelão, Vikram Kandhari, Thais Dutra Vieira and Bertrand Sonnery-Cottet

Towards planning of osteotomy around the knee with quantitative inclusion of the adduction moment: a biomechanical approach

Despite practised for decades, the planning of osteotomy around the knee, commonly using the Mikulicz-Line, is only empirically based, clinical outcome inconsistent and the target angle still controversial. A ...

Authors: Margit Biehl, Philipp Damm, Adam Trepczynski, Stefan Preiss and Gian Max Salzmann

What is the effect of supervised rehabilitation regime vs. self-management instruction following unicompartmental knee arthroplasty? – a pilot study in two cohorts

The optimal rehabilitation strategy after a unicompartmental knee arthroplasty (UKA) is unclear. This study aims to compare the effect of transitioning from a supervised to a self-management rehabilitation reg...

Authors: Adam Omari, Lina Holm Ingelsrud, Thomas Quaade Bandholm, Susanne Irene Lentz, Anders Troelsen and Kirill Gromov

Evaluation of the inter and intraobserver reproducibility of the GRASP method: a goniometric method to measure the isolated glenohumeral range of motion in the shoulder joint

To evaluate the intra and interobserver reproducibility of a new goniometric method for evaluating the isolated passive range of motion of the glenohumeral joint in an outpatient setting.

Authors: Miguel Angel Ruiz Ibán, Susana Alonso Güemes, Raquel Ruiz Díaz, Cristina Victoria Asenjo Gismero, Alejandro Lorente Gomez and Jorge Diaz Heredia

Effect of a simple core muscle training program on trunk muscle strength and neuromuscular control among pediatric soccer players

The purpose of this study was to examine the effect of simple core muscle training (CMT) program on trunk muscle strength and neuromuscular control among pediatric athletes.

Authors: Ryotaro Kumahara, Shizuka Sasaki, Eiji Sasaki, Yuka Kimura, Yuji Yamamoto, Eiichi Tsuda and Yasuyuki Ishibashi

Letter to the editor “Middle trapezius transfer for treatment of irreparable supraspinatus tendon tears-anatomical feasibility study”

Authors: Mehmet Kapicioglu, Orkhan Aliyev and Kerem Bilsel

Is T2 mapping reliable in evaluation of native and repair cartilage tissue of the knee?

To evaluate the effect of imaging plane and experience of observers on the reliability of T2 mapping of native and repair cartilage tissue of the knee.

Authors: Hasan Banitalebi, Christian Owesen, Asbjørn Årøen, Hang Thi Tran, Tor Åge Myklebust and Per-Henrik Randsborg

Evaluation of outcome reporting trends for femoroacetabular impingement syndrome- a systematic review

The aim of this systematic review was to evaluate the trends in the literature regarding surgical treatment for femoroacetabular impingement syndrome (FAIS) and to present which patient-reported outcome-measur...

Authors: Ida Lindman, Sarantos Nikou, Axel Öhlin, Eric Hamrin Senorski, Olufemi Ayeni, Jon Karlsson and Mikael Sansone

Supracondylar rotation osteotomy of the femur influences the coronal alignment of the ankle

Osteotomies represent well-established treatment-options for the redistribution of loads and forces within and around the knee-joint. Effects of these osteotomies on the remaining planes and adjacent joints ar...

Authors: Christian Konrads, Marc-Daniel Ahrend, Myriam R. Beyer, Ulrich Stöckle and Sufian S. Ahmad

Evaluation of the ‘Spaarne soft tissue procedure’ as a treatment for recurrent patellar dislocations: a four-in-one technique

The ‘Spaarne soft tissue procedure’, is a 4-in-1 soft tissue procedure that treats recurrent patellar dislocations in the young and active population. The procedure has not yet described elsewhere. The purpose...

Authors: Raymond Puijk, Rachid Rassir, Jan K. G. Louwerens, Inger N. Sierevelt, Tjitte de Jong and Peter A. Nolte

Early outcomes and predictors of patient satisfaction after TKA: a prospective study of 200 cases with a contemporary cemented rotating platform implant design

The purpose of the study was to identify the earliest time point where subjects realized the greatest clinical improvement after TKA, and the time when post-operative scores became superior to pre-operative sc...

Authors: Corné van Loon, Niels Baas, Verdonna Huey, James Lesko, Geert Meermans and Diederik Vergroesen

A computed tomography cadaveric study of the radiological anatomy of the patella: the size of the patella correlates with bone bridge between tunnels and R angles are introduced for safe tunnel drilling during MPFL reconstruction

To measure the safe range of angles during tunnel drilling and map ideal patella tunnel placement with the use of preoperative computed tomography (CT) scan and compare results after medial patellofemoral liga...

Authors: Vasileios Raoulis, Ioannis Tsifountoudis, Apostolos Fyllos, Michael Hantes, Michael-Alexander Malahias, Apostolos Karantanas and Aristeidis Zibis