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https://www.readbyqxmd.com/read/28227317/co-activation-periods-of-gastrocnemius-and-vastus-lateralis-during-walking-evaluated-by-surface-electromyography
#1
Alessandro Mengarelli, Annachiara Strazza, Agnese Sbrollini, Angela Agostinelli, Laura Burattini, Sandro Fioretti, Francesco Di Nardo, Alessandro Mengarelli, Annachiara Strazza, Agnese Sbrollini, Angela Agostinelli, Laura Burattini, Sandro Fioretti, Francesco Di Nardo, Alessandro Mengarelli, Sandro Fioretti, Agnese Sbrollini, Annachiara Strazza, Laura Burattini, Angela Agostinelli, Francesco Di Nardo
"In vivo" studies reported that the co-activation of gastrocnemius and quadriceps femoris (QF) muscles produces ACL strain values greater than those caused by an isolated activation of either muscle. Aim of this study was to assess the co-activation of gastrocnemius (lateral head, GL) and vastus lateralis (VL) in healthy and young adults during walking. To this purpose the Statistical Gait Analysis was performed, that allows a characterization of gait considering hundreds of strides belonging to the same walking trial...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224443/report-of-the-clinical-and-functional-primary-outcomes-in-men-of-the-acl-sports-trial-similar-outcomes-in-men-receiving-secondary-prevention-with-and-without-perturbation-training-1-and-2-years-after-acl-reconstruction
#2
Amelia J H Arundale, Kathleen Cummer, Jacob J Capin, Ryan Zarzycki, Lynn Snyder-Mackler
BACKGROUND: Athletes often are cleared to return to activities 6 months after anterior cruciate ligament (ACL) reconstruction; however, knee function measures continue to improve up to 2 years after surgery. Interventions beyond standard care may facilitate successful return to preinjury activities and improve functional outcomes. Perturbation training has been used in nonoperative ACL injury and preoperative ACL reconstruction rehabilitation, but has not been examined in postoperative ACL reconstruction rehabilitation, specifically return to sport rehabilitation...
February 21, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28224442/report-of-the-primary-outcomes-for-gait-mechanics-in-men-of-the-acl-sports-trial-secondary-prevention-with-and-without-perturbation-training-does-not-restore-gait-symmetry-in-men-1-or-2-years-after-acl-reconstruction
#3
Jacob John Capin, Ryan Zarzycki, Amelia Arundale, Kathleen Cummer, Lynn Snyder-Mackler
BACKGROUND: Movement asymmetries during walking are common after anterior cruciate ligament (ACL) injury and reconstruction and may influence the early development of posttraumatic osteoarthritis. Preoperative neuromuscular training (like perturbation training, which is neuromuscular training requiring selective muscle activation in response to surface perturbations) improves gait asymmetries and functional outcomes among people who are ACL-deficient, but the effect of postoperative perturbation training on gait mechanics after ACL reconstruction is unknown...
February 21, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28224222/immunopathological-characterization-of-human-cutaneous-leishmaniasis-lesions-caused-by-leishmania-viannia-spp-in-amazonian-brazil
#4
Cláudia Maria Castro Gomes, Maria Gloria Teixeira Sousa, Joyce Prieto Bezerra Menezes, Marliane Campos Batista, Ana Carolina Stocco Lima, Walter Belda, Daniel Bradshaw, Monica Elinor Alves Gama, Márcia Dalastra Laurenti, Fernando Tobias Silveira, Carlos Eduardo Pereira Corbett
American cutaneous leishmaniasis (ACL) is a chronic infectious disease caused by different protozoan species of Leishmania, and it is endemic in both tropical and subtropical countries. Using immunohistochemistry, we investigate the density of CD68(+), lysozyme(+), CD1a(+), factor XIIIa(+), CD4(+), CD8(+), CD56(+), interferon (IFN)-γ(+), and inducible NO synthase (iNOS(+)) cells. These cells were analyzed from 22 biopsy samples obtained from the lesions of ACL patients, whose infection was caused by Leishmania (Viannia) spp...
February 21, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28224200/plain-radiographs-can-be-used-for-routine-assessment-of-acl-reconstruction-tunnel-position-with-three-dimensional-imaging-reserved-for-research-and-revision-surgery
#5
REVIEW
Jonathan David Kosy, Vipul I Mandalia
PURPOSE: The position of the osseous tunnels and graft during anterior cruciate ligament (ACL) reconstruction has been the subject of multiple studies aiming for either anatomical placement or an alternative. The assessment of these positions, using post-operative imaging, is therefore of interest to the surgeon in both the evaluation of surgical performance and surveillance of potential complications. The purpose of this review is to identify the optimal use of imaging in both the surveillance of clinical practice and in planning revision surgery...
February 21, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28224072/concomitant-arthroscopic-meniscal-allograft-transplantation-and-anterior-cruciate-ligament-reconstruction
#6
Bryan M Saltzman, Justin W Griffin, Nathan Wetters, Maximilian A Meyer, Brian J Cole, Adam B Yanke
In recent decades, arthroscopic meniscal allograft transplantation (MAT) has been refined as a robust option for the treatment of evolving unicompartmental tibiofemoral arthrosis in the setting of meniscal deficiency. It is imperative that the MAT be performed in a knee with anatomic stability and alignment to reduce aberrant biomechanical forces experienced by the allograft tissue to maintain its durability. Thus, in an anterior cruciate ligament (ACL)-deficient knee, ACL reconstruction (ACLR) must be performed to restore the stable knee environment for the MAT to succeed...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28224069/allograft-anterior-cruciate-ligament-reconstruction-utilizing-internal-brace-augmentation
#7
Patrick A Smith, Jordan A Bley
Anterior cruciate ligament (ACL) tears are among the most common sports-related injuries. Although studies have reported reliable outcomes with allograft tissue, several studies have shown a higher failure rate in younger patients. Although ACL graft augmentation has been met with varying levels of success, internal bracing of an allograft represents a promising area in ACL reconstruction. The purpose of this article is to detail allograft preparation involving a collagen-coated, ultrahigh-molecular-weight polyethylene/polyester suture tape as an internal brace augmentation for ACL reconstruction using the all-inside ACL GraftLink Technique (Arthrex, Naples, FL)...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28224063/the-8-strand-hamstring-autograft-in-anterior-cruciate-ligament-reconstruction
#8
Kunbo Park, Christopher M Brusalis, Theodore J Ganley
Growing participation in youth athletics has resulted in increased numbers of anterior cruciate ligament (ACL) injuries in skeletally immature patients. Use of autogenous graft material has been associated with improved graft survival. However, pediatric patients sometimes possess hamstring tendons that produce smaller-diameter grafts than those prepared with adult autogenous materials. Smaller-diameter grafts may predispose younger patients to graft failure. We describe a technique that increases the diameter of the ACL construct through the use of an 8-strand autologous hamstring tendon graft...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28223309/how-can-we-prove-that-a-preventive-measure-in-elite-sport-is-effective-when-the-prevalence-of-the-injury-eg-acl-tear-in-alpine-ski-racing-is-low-a-case-for-surrogate-outcomes
#9
EDITORIAL
Josef Kröll, Jörg Spörri, Sophie Elspeth Steenstrup, Hermann Schwameder, Erich Müller, Roald Bahr
No abstract text is available yet for this article.
February 21, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28223305/eighty-three-per-cent-of-elite-athletes-return-to-preinjury-sport-after-anterior-cruciate-ligament-reconstruction-a-systematic-review-with-meta-analysis-of-return-to-sport-rates-graft-rupture-rates-and-performance-outcomes
#10
REVIEW
Courtney C H Lai, Clare L Ardern, Julian A Feller, Kate E Webster
OBJECTIVES: The primary objective was to calculate the rate of return to sport (RTS) following anterior cruciate ligament (ACL) reconstruction in elite athletes. Secondary objectives were to estimate the time taken to RTS, calculate rates of ACL graft rupture, evaluate postsurgical athletic performance and identify determinants of RTS. DESIGN: Pooled RTS and graft rupture rates were calculated using random effects proportion meta-analysis. Time to RTS, performance data and determinants of RTS were synthesised descriptively...
February 21, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28222578/the-effects-of-prevent-injury-and-enhance-performance-program-in-a-female-soccer-team
#11
Cristina Rodríguez, Soledad Echegoyen, Takeshi Aoyama
BACKGROUND: The purpose of this study is to evaluate the changes of muscle strength in lower limbs and knee valgus alignment using the Prevent Injury and Enhance Performance Program (PEP program) to prevent ACL injuries in female soccer players during an entire season. METHODS: A longitudinal and prospective study was done in twenty female soccer players at the Universidad Nacional Autónoma de México, from a senior team. During 24 weeks the training program was applied three times a week as a part of the team workouts...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28220268/anterolateral-ligament-expert-group-consensus-paper-on-the-management-of-internal-rotation-and-instability-of-the-anterior-cruciate-ligament-deficient-knee
#12
REVIEW
Bertrand Sonnery-Cottet, Matthew Daggett, Jean-Marie Fayard, Andrea Ferretti, Camilo Partezani Helito, Martin Lind, Edoardo Monaco, Vitor Barion Castro de Pádua, Mathieu Thaunat, Adrian Wilson, Stefano Zaffagnini, Jacco Zijl, Steven Claes
Purpose of this paper is to provide an overview of the latest research on the anterolateral ligament (ALL) and present the consensus of the ALL Expert Group on the anatomy, radiographic landmarks, biomechanics, clinical and radiographic diagnosis, lesion classification, surgical technique and clinical outcomes. A consensus on controversial subjects surrounding the ALL and anterolateral knee instability has been established based on the opinion of experts, the latest publications on the subject and an exchange of experiences during the ALL Experts Meeting (November 2015, Lyon, France)...
February 20, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28219088/single-bundle-versus-double-bundle-anterior-cruciate-ligament-reconstruction-a-prospective-randomized-controlled-trial-with-6-year-follow-up
#13
Paolo Adravanti, Francesco Dini, Laura de Girolamo, Massimo Cattani, Michele Attilio Rosa
Single-bundle (SB) anterior cruciate ligament (ACL) reconstruction is increasingly used in a large number of patients and it allows obtaining very good clinical and subjective results; however, functional tests show a persistent rotational instability. Biomechanical studies seem to indicate that double-bundle (DB) ACL reconstruction allows to obtain increased anterior and rotational stability compared with SB. The aim of this prospective randomized controlled study was to compare the clinical outcome and the possible osteoarthritic evolution of patients treated either with a SB (freehand transtibial femoral tunnel) or with a DB technique (outside-in for posterolateral femoral tunnel/inside-out for anteromedial femoral tunnel) at a final follow-up of 6 years...
February 20, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28217688/advancing-community-based-falls-prevention-programs-for-older-adults-the-work-of-the-administration-for-community-living-administration-on-aging
#14
Kristie Kulinski, Casey DiCocco, Shannon Skowronski, Phantane Sprowls
The mission of the Administration for Community Living (ACL) is to maximize the independence, well-being, and health of older adults, people with disabilities across the lifespan, and their families and caregivers. In direct alignment with this mission is ACL's support of evidence-based falls prevention programs in communities throughout the United States. Since 2014, the Administration on Aging (AoA), part of ACL, has invested nearly $14 million in entities such as state agencies, nonprofits, and universities to expand access to proven community-based falls prevention programs...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28217655/correlation-between-body-mass-index-and-quadrupled-hamstring-tendon-autograft-size-in-acl-reconstruction
#15
Zafer Atbaşi, Ersin Erçin, Yusuf Erdem, Tuluhan Yunus Emre, Halis Atil Atilla, Adem Parlak
PURPOSE: the aim of this study was to assess the relationship of patient weight, height and body mass index (BMI) with the size of the quadrupled hamstring tendon used in anterior cruciate ligament (ACL) reconstruction. METHODS: from patient records, we retrospectively assessed the weight, height, BMI and graft sizes of 126 patients who underwent ACL reconstruction using a quadrupled hamstring tendon autograft between January 2010 and January 2013 at our institution...
October 2016: Joints
https://www.readbyqxmd.com/read/28217573/return-to-sports-after-acl-reconstruction-a-new-functional-test-protocol
#16
Gian Nicola Bisciotti, Alessandro Quaglia, Andrea Belli, Giulia Carimati, Piero Volpi
BACKGROUND: In literature, there are lack of studies proposing clear and rationally designed test battery to be performed after an ACL reconstruction. METHODS: From 2006 to 2015, 80 football players were subjected, after ACL reconstruction, to a newly conceived test battery analyzing: Isometric and isokinetic force productionThe different phases during the jumpThe correct control of the landing phase after jumpThe control of valgus during landing after jump and cutting movements...
October 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28217571/returning-to-sport-after-anterior-cruciate-ligament-reconstruction-in-amateur-sports-men-a-retrospective-study
#17
Angela Notarnicola, Giuseppe Maccagnano, Federico Barletta, Leonardo Ascatigno, Leopoldo Astuto, Antonio Panella, Silvio Tafuri, Biagio Moretti
BACKGROUND: According to the literature, 95% of professional athletes return to their sport after anterior cruciate ligament (ACL) reconstruction surgery. The main objective of this study was to verify the return to sport after ACL reconstruction in a homogenous group of amateur sportsmen and sportswomen in a series of Italian patients. MATERIALS AND METHODS: We designed a retrospective study in which we analyzed the amateur sports patients operated for ACL reconstruction...
October 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28217570/risk-factors-of-anterior-cruciate-ligament-injury-in-football-players-a-systematic-review-of-the-literature
#18
Piero Volpi, Gian Nicola Bisciotti, Karim Chamari, Emanuela Cena, Giulia Carimati, Nicola Luigi Bragazzi
BACKGROUND: The ACL lesion represents one of the most dramatic injuries in a sportsman's career. There are many injury risk factors related to intrinsic, or non-modifiable, and extrinsic, or modifiable, factors. In literature at today current evidence suggests that ACL injury risk is multifactorial and involves biomechanical, anatomical, hormonal and neuromuscular factors. PURPOSE: To perform a systematic review of the literature concerning the ACL injury risk factors in soccer...
October 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28217569/acl-injury-in-football-a-literature-overview-of-the-prevention-programs
#19
Gian Nicola Bisciotti, Karim Chamari, Emanuele Cena, Giulia Carimati, Piero Volpi
BACKGROUND: The ACL prevention programs are addressed to the control and/or modification of the so-called "modifiable risk factors". All these programs focus on different intervention strategies aimed to decrease the ACL injury risk, particularly in female athletes population. PURPOSE: To furnish an overview of the most used ACL injury prevention program through a narrative review. CONCLUSION: In literature there are many reports on prevention programs whose common denominator is the proper alignment of the lower limb joints and proper motor control during movements that are considered at risk for ACL integrity, as the landing phase after a jump...
October 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28217568/correlation-between-fixation-systems-elasticity-and-bone-tunnel-widening-after-acl-reconstruction
#20
Nicola Giorgio, Lorenzo Moretti, Paolo Pignataro, Massimiliano Carrozzo, Giovanni Vicenti, Biagio Moretti
BACKGROUND: Femoral and tibial tunnel widening (TW) after ACL reconstruction is a phenomenon increasing talk in the literature. It is underlying biological and mechanical causes. OBJECTIVE: The aim of this study was to evaluate the relationship between bone tunnel enlargement and two different ACL fixation systems. PATIENTS AND METHODS: 40 patient underwent ACL reconstruction with hamstring; randomly divided into group A with 20 patients treated with stiff systems (femoral Rigidfix and tibial interference screw), and into group B, with 20 patients treated with morel elastic system (femoral and tibial Tight-rope)...
October 2016: Muscles, Ligaments and Tendons Journal
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