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Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA

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https://www.readbyqxmd.com/read/30421166/the-significant-effect-of-the-medial-hamstrings-on-dynamic-knee-stability
#1
Aneet S Toor, Orr Limpisvasti, Hansel E Ihn, Michelle H McGarry, Michael Banffy, Thay Q Lee
PURPOSE: While hamstring autograft is a popular option for the general population, BTB autograft is still significantly more popular among professional athletes due to concerns of altering knee kinematics with hamstring harvest. This study seeks to quantify the contribution of the medial hamstrings to knee stability. METHODS: Valgus knee laxity, anterior tibial translation, and rotational motion were measured in eight fresh-frozen cadaveric knees after forces were applied on the tibia in each plane (coronal, sagittal, and axial)...
November 12, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30421165/kinematic-alignment-in-total-knee-arthroplasty-leads-to-a-better-restoration-of-patellar-kinematics-compared-to-mechanic-alignment
#2
Armin Keshmiri, Günther Maderbacher, Clemens Baier, Achim Benditz, Joachim Grifka, Felix Greimel
PURPOSE: The influence of different implantation techniques in TKA on tibiofemoral kinematics was analysed in few investigations so far. However, the influence on patellar kinematics remain unclear. The aim of the present investigation was to compare patellar kinematics of the natural knee with those of knees after both kinematically and mechanically aligned TKAs. METHODS: Patellar kinematics of ten cadaveric knees before and after TKAs implanted using both a kinematic and mechanic alignment technique were investigated and compared using a commercial optical computer navigation system...
November 12, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30421164/reconstruction-of-the-medial-patellofemoral-ligament-and-reinforcement-of-the-medial-patellotibial-ligament-is-an-effective-treatment-for-patellofemoral-instability-with-patella-alta
#3
Yimeng Yang, Qiang Zhang
PURPOSE: To evaluate the clinical outcome of the combined reconstruction of the medial patellofemoral ligament (MPFL) and medial patellotibial ligament (MPTL) for patellar instability with patella alta. METHODS: A total of 108 patients underwent a combined reconstruction of the MPFL and MPTL, and 58 patients were included in this study. The clinical results were evaluated and compared using the International Knee Documentation Committee (IKDC) scores, Kujala scores, and visual analogue scale (VAS) scores...
November 12, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30415388/lower-limb-alignment-becomes-more-varus-and-hyperextended-from-supine-to-bipedal-stance-in-asymptomatic-osteoarthritic-and-prosthetic-neutral-or-varus-knees
#4
Michael J C Brown, Angela H Deakin, Frederic Picard, Philip E Riches, Jon V Clarke
PURPOSE: Knee alignment is a fundamental measurement in the assessment, monitoring and surgical management of patients with osteoarthritis. There is a lack of data regarding how static tibiofemoral alignment varies between supine and standing conditions. This study aimed to quantify the relationship between supine and standing lower limb alignment in asymptomatic, osteoarthritic (OA) and prosthetic (TKA) knees. METHODS: A non-invasive position capture system was used to assess knee alignment for 30 asymptomatic controls and 31 patients with OA both before and after TKA...
November 10, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30415387/tendon-morphology-and-mechanical-properties-assessed-by-ultrasound-show-change-early-in-recovery-and-potential-prognostic-ability-for-6-month-outcomes
#5
Jennifer A Zellers, Daniel H Cortes, Ryan T Pohlig, Karin Grävare Silbernagel
PURPOSE: Optimizing tendon structural recovery during the first 12 weeks after Achilles tendon rupture is a prime target to improve patient outcomes, but a comprehensive understanding of biomarkers is needed to track early healing. The purpose of this study was to observe healing of tendon structure over time using ultrasound-based, tendon-specific measures and to identify relationships between tendon structural characteristics and clinical measures of gait and strength. METHODS: Twenty-seven participants (21 males, mean (SD) age 39 (11) years) were assessed at 4, 8, 12, and 24 weeks after injury or surgery using ultrasound imaging techniques...
November 10, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30413861/national-injury-prevention-measures-in-team-sports-should-focus-on-knee-head-and-severe-upper-limb-injuries
#6
Malin Åman, Magnus Forssblad, Karin Larsén
PURPOSE: To examine acute injuries in licensed floorball, football, handball, and ice hockey players in all ages nationwide in Sweden, and to identify the most common and severe injuries in each body location and recommend injury prevention measures. METHODS: Using national sport insurance data from years 2006-2015 was the incidence and proportion of acute injuries, and injuries leading to permanent medical impairment (PMI), calculated in the four team sports. The most common injury type and injured body part was identified, with a particular focus of the severe injuries...
November 9, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30413860/higher-age-female-gender-osteoarthritis-and-blood-transfusion-protect-against-periprosthetic-joint-infection-in-total-hip-or-knee-arthroplasties-a-systematic-review-and-meta-analysis
#7
REVIEW
Vera Alice Correia Resende, Artur Costa Neto, Carla Nunes, Renato Andrade, João Espregueira-Mendes, Sílvia Lopes
PURPOSE: The goal of this systematic review and meta-analysis was to identify the main risk factors for periprosthetic joint infection (PJI) in patients undergoing total hip or knee arthroplasties. METHODS: A systematic review was conducted of the potential risk factors for PJI in total hip or total knee arthroplasty. Risk factors were compared and grouped according to demographics, comorbidities, behavior, infections, native joint diseases and other patient-related and procedure-related factors...
November 9, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30413859/increased-atfl-ptfl-angle-could-be-an-indirect-mri-sign-in-diagnosis-of-chronic-atfl-injury
#8
Hong-Yun Li, Wen-Long Li, Shi-Yi Chen, Ying-Hui Hua
PURPOSE: Magnetic resonance imaging (MRI) has relatively low accuracy in diagnosing chronic anterior talofibular ligament (ATFL) injury. This study's purpose was to evaluate the angle between the ATFL and posterior talofibular ligament (PTFL) as a new indirect MRI sign of chronic ATFL injury in patients with mechanical ankle instability (MAI). METHODS: This study included 200 participants: 105 patients with MAI and 95 patients seen at our institution for reasons unrelated to ankle instability...
November 9, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30413858/partial-meniscectomy-adversely-affects-return-to-sport-outcome-after-anatomical-double-bundle-anterior-cruciate-ligament-reconstruction
#9
Takanori Akada, Ichiro Yamaura, Ashish Gupta, Hiroki Sakai, Kenji Takahashi, Akihiro Tsuchiya
PURPOSE: The purposes of this study were to determine whether the partial meniscectomy combined with ACL reconstruction affect the postoperative return-to-sport and to identify if partial meniscectomy has an influence on the graft failure following an anatomical double-bundle ACL reconstruction case. METHODS: A retrospective cohort study including 426 primary double bundle ACL reconstruction cases. There were 206 males and 220 females, median age of 28.4 years, median BMI of 23...
November 9, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30406813/synovitis-following-anterior-cruciate-ligament-reconstruction-using-the-lars-device
#10
Scott John Tulloch, Brian Meldan Devitt, Cameron John Norsworthy, Chris Mow
PURPOSE: The Ligament Augmentation and Reconstruction System (LARS® ) has been at the forefront of a recent revival in the use of synthetic ligaments for ACL reconstruction. However, despite promising short-to-mid-term results its role has been approached with caution due to a high number of major complications in previous synthetic graft designs including mechanical failures, synovitis and osteoarthritis. This study aims to report on the incidence of synovitis in a series of patients undergoing second-look surgery following LARS ACL reconstruction...
November 8, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30406408/anterior-cruciate-ligament-reconstruction-is-associated-with-greater-tibial-tunnel-widening-when-using-a-bioabsorbable-screw-compared-to-an-all-inside-technique-with-suspensory-fixation
#11
Edoardo Monaco, Mattia Fabbri, Andrea Redler, Edoardo Gaj, Angelo De Carli, Giuseppe Argento, Adnan Saithna, Andrea Ferretti
PURPOSE: To compare clinical outcomes and tunnel widening following anterior cruciate ligament reconstruction (ACLR) performed with an all-inside technique (Group A) or with a bioabsorbable tibial screw and suspensory femoral fixation (Group B). METHODS: Tunnel widening was assessed using computed tomography (CT) and a previously validated analytical best fit cylinder technique at approximately 1-year following ACLR. Clinical follow-up comprised evaluation with IKDC, KSS, Tegner, Lysholm scores, and knee laxity assessment...
November 7, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30406407/midbody-of-the-medial-meniscus-as-a-reference-of-preservation-in-partial-meniscectomy-for-complete-discoid-lateral-meniscus
#12
Seong Hwan Kim, JungTae Ahn, Tae Wook Kim, Kang-Il Kim, Sang Hak Lee
PURPOSE: To evaluate the postoperative size of discoid lateral meniscus using magnetic resonance imaging (MRI) after partial meniscectomy relative to the size of medial meniscus midbody. METHODS: This study included 48 patients who underwent arthroscopic partial meniscectomy with or without repair for symptomatic complete discoid meniscus. The intraoperative size of midbody of medial meniscus was used as a reference for partial meniscectomy. MRIs were performed pre- and postoperatively...
November 7, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30406406/tunnel-placement-in-acl-reconstruction-surgery-smaller-inter-tunnel-angles-and-higher-peak-forces-at-the-femoral-tunnel-using-anteromedial-portal-femoral-drilling-a-3d-and-finite-element-analysis
#13
Thomas Tampere, Wouter Devriendt, Michiel Cromheecke, Thomas Luyckx, Matthias Verstraete, Jan Victor
PURPOSE: Recent studies have emphasized the importance of anatomical ACL reconstruction to restore normal knee kinematics and stability. Aim of this study is to evaluate and compare the ability of the anteromedial (AM) and transtibial (TT) techniques for ACL reconstruction to achieve anatomical placement of the femoral and tibial tunnel within the native ACL footprint and to determine forces within the graft during functional motion. As the AM technique is nowadays the technique of choice, the hypothesis is that there are significant differences in tunnel features, reaction forces and/or moments within the graft when compared to the TT technique...
November 7, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30402662/medial-soft-tissue-contracture-does-not-always-exist-in-varus-osteoarthritis-knees-in-total-knee-arthroplasty
#14
Tetsuro Ushio, Hideki Mizu-Uchi, Ken Okazaki, Kazuki Miyama, Yukio Akasaki, Yuan Ma, Yasuharu Nakashima
PURPOSE: To evaluate preoperative soft tissue balance for total knee arthroplasty (TKA), varus/valgus stress radiographs has been used in previous studies. While the joint line of femur and tibia is almost parallel in healthy and postoperative knees, osteoarthritis (OA) knees exhibit articular cartilage wear that causes the joint line tilting even in a non-stress condition. Therefore, the exact angle of the joint line might mislead to understand the joint laxity in OA knees. The purpose of this study was to evaluate soft tissue balance in varus OA knees using preoperative stress radiographs under three different constant loads, taking the articular cartilage wear into consideration...
November 7, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30392029/arthroscopic-microfracture-vs-arthroscopic-autologous-matrix-induced-chondrogenesis-for-the-treatment-of-articular-cartilage-defects-of-the-talus
#15
Christoph Becher, Michael Alexander Malahias, Moataz Mahmoud Ali, Nicola Maffulli, Hajo Thermann
PURPOSE: Microfracture is an established method to treat osteochondral defects of the talus. The value of the addition of an acellular matrix is still under debate. This study compared the results of arthroscopic microfracture vs. arthroscopic autologous matrix-induced chondrogenesis using a collagen I/III matrix (AMIC) in the management of articular cartilage defects of the talus. METHODS: Patients with a minimum follow-up of 5 years after arthroscopic management for an articular cartilage defect of the talus with either microfracture alone or an additional acellular matrix were matched according to age, sex and BMI...
November 3, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30390134/steep-lateral-tibial-slope-and-lateral-to-medial-slope-asymmetry-are-risk-factors-for-concomitant-posterolateral-meniscus-root-tears-in-anterior-cruciate-ligament-injuries
#16
Rainer Kolbe, Andrés Schmidt-Hebbel, Philipp Forkel, Jonas Pogorzelski, Andreas B Imhoff, Matthias J Feucht
PURPOSE: To compare sagittal and coronal tibial slopes between anterior cruciate ligament (ACL) injured subjects with and without posterolateral meniscus root tear (PLRT). METHODS: A chart review was conducted to identify patients with isolated ACL tears and patients with an associated PLRT. Patients with other concomitant injuries and patients who underwent surgery > 6 months after the injury were excluded. Magnetic resonance image data were used to compare the medial and lateral sagittal tibial slope (MTS and LTS), lateral-to-medial slope asymmetry (LTS-MTS), and coronal slope of the tibial plateau between both groups...
November 2, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30390133/correction-to-femoral-insertion-site-of-the-graft-used-to-replace-the-medial-patellofemoral-ligament-influences-the-ligament-dynamic-changes-during-knee-flexion-and-the-clinical-outcome
#17
Vicente Sanchis-Alfonso, Cristina Ramirez-Fuentes, Erik Montesinos-Berry, Julio Domenech, Luis Martí-Bonmatí
Unfortunately, the author missed out to indicate the affiliation which is basic requirement as a part of his thesis. The affiliation is now updated here.
November 2, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30390132/correction-to-more-tendon-degeneration-in-patients-with-shoulder-osteoarthritis
#18
Mustafa Ibrahim, Jüri-Toomas Kartus, Sonja Eriksson Steigen, Randi Olsen, Khaled Meknas
Unfortunately, the given name and the family name of the authors were incorrectly identified in the original article. The author names are corrected here by this correction paper. The original article has been corrected.
November 2, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30387000/agili-c-implant-promotes-the-regenerative-capacity-of-articular-cartilage-defects-in-an-ex-vivo-model
#19
Susan Chubinskaya, Berardo Di Matteo, Laura Lovato, Francesco Iacono, Dror Robinson, Elizaveta Kon
PURPOSE: Osteochondral implants are currently adopted for the treatment of symptomatic full-thickness chondral and osteochondral defects. Agili-C™ is a cell-free aragonite-based scaffold which aims to reproduce the original structure and function of the articular joint while directing the growth and regeneration of both cartilage and its underlying subchondral bone. The goal of the present study was to investigate the ex vivo mechanisms of action (MOA) of the Agili-C™ implant in the repair of full-thickness cartilage defects...
November 1, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30386999/unloader-knee-brace-increases-medial-compartment-joint-space-during-gait-in-knee-osteoarthritis-patients
#20
Kanto Nagai, Shumeng Yang, Freddie H Fu, William Anderst
PURPOSE: The purpose of the present study was to investigate the effect of the unloader brace on medial compartment dynamic joint space (DJS) during gait, while simultaneously recording ground reaction force (GRF) in varus knee osteoarthritis (OA) patients using a highly accurate biplane radiography system which allowed continuous measurement of DJS from heel strike through the midstance phase of gait. The hypothesis was that DJS in the medial compartment would be greater with the unloader brace than without the brace during gait...
November 1, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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