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ACL reconstruction and quadriceps

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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
#1
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
#2
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/28203600/do-muscle-strength-deficits-of-the-uninvolved-hip-and-knee-exist-in-young-athletes-before-anterior-cruciate-ligament-reconstruction
#3
Joseph Hannon, Sharon Wang-Price, Shiho Goto, J Craig Garrison, James M Bothwell
BACKGROUND: Muscle strength of the involved limb is known to be decreased after injury. Comparison with the uninvolved limb has become standard of practice to measure progress and for calculation of limb symmetry indices (LSIs) to determine readiness to return to sport. However, some literature suggests strength changes in the uninvolved limb also are present after lower extremity injury. PURPOSE: To examine the uninvolved limb strength in a population of adolescent athletes after an anterior cruciate ligament (ACL) injury and compare strength values with those of the dominant limb in a healthy control group...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28195986/functional-bracing-after-anterior-cruciate-ligament-reconstruction-a-systematic-review
#4
Walter R Lowe, Ryan J Warth, Elizabeth P Davis, Lane Bailey
INTRODUCTION: The purpose of this study was to evaluate the current literature on the use of functional knee braces after anterior cruciate ligament (ACL) reconstruction with respect to clinical and in vivo biomechanical data. METHODS: A systematic search of both the PubMed and Embase databases was performed to identify all studies that reported clinical and/or in vivo biomechanical results of functional bracing versus nonbracing after ACL reconstruction. Extracted data included study design, surgical reconstruction techniques, postoperative rehabilitation protocols, objective outcomes, and subjective outcomes scores...
March 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28144695/greater-intracortical-inhibition-associates-with-lower-quadriceps-voluntary-activation-in-individuals-with-acl-reconstruction
#5
Brittney A Luc-Harkey, Matthew S Harkey, Derek N Pamukoff, Rebecca H Kim, Troy K Royal, J Troy Blackburn, Jeffery T Spang, Brian Pietrosimone
Decreased voluntary activation contributes to quadriceps weakness following anterior cruciate ligament reconstruction (ACLR). Alterations in neural excitability are likely responsible for reductions in quadriceps voluntary activation, and may be due to specific alterations in intracortical inhibition and facilitation. Therefore, we sought to determine if intracortical inhibition (SICI) and intracortical facilitation (ICF) associate with quadriceps voluntary activation in individuals with ACLR. Twenty-seven participants with a primary, unilateral ACLR were enrolled in this study...
January 31, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28040578/analgesia-after-acl-reconstruction-hamstring-donor-site-injection-versus-intra-articular-local-anaesthetic-injection
#6
Bertrand Sonnery-Cottet, Adnan Saithna, Abdul Azeem, Eric Choudja, Jean Baptiste Pic, Julien Cabaton, Mathieu Thaunat
BACKGROUND: The purpose of this study was to compare hamstring donor-site injection versus intra-articular injection of a local anaesthetic for analgesia after anterior cruciate ligament (ACL) reconstruction. HYPOTHESIS: The two methods provide similar pain relief. MATERIAL AND METHODS: 158 consecutive patients undergoing ACL hamstring tendon graft reconstruction (semi-tendinosus/gracilis [STG] or four-stranded semi-tendinosus [ST4]) during two periods in 2015 were included...
December 28, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28024306/a-canine-arthroscopic-anterior-cruciate-ligament-reconstruction-model-for-study-of-synthetic-augmentation-of-tendon-allografts
#7
James L Cook, Pat Smith, James P Stannard, Ferris Pfeiffer, Keiichi Kuroki, Chantelle C Bozynski, Cristi Cook
Novel graft types, fixation methods, and means for augmenting anterior cruciate ligament (ACL) reconstructions require preclinical validation prior to safe and effective clinical application. The objective of this study was to describe and validate a translational canine model for all-inside arthroscopic complete ACL reconstruction using a quadriceps tendon allograft with internal brace (QTIB). With institutional approval, adult research hounds underwent complete transection of the native ACL followed by all-inside ACL reconstruction using the novel QTIB construct with suspensory fixation (n = 10)...
December 26, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27992239/differential-effects-of-two-rehabilitation-programs-following-anterior-cruciate-ligament-reconstruction
#8
Igor Setuain, Mikel Izquierdo, Fernando Idoate, Eder Bikandi, Esteban M Gorostiaga, Per Aagaard, Eduardo L Cadore, Jesús Alfaro-Adrián
Context- The muscular function restoration related to the type of physical rehabilitation followed after anterior cruciate ligament reconstruction (ACLR) using autologous hamstring tendon graft in terms of strength and cross sectional area (CSA) remain controversial. Objective- To analyze the CSA and force output of quadriceps and hamstring muscles in subjects following either an Objective Criteria-Based rehabilitation (OCBR) algorithm or the usual care (UCR) for ACL rehabilitation in Spain, before and one year after undergoing an ACLR...
December 19, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27930453/whole-body-vibration-improves-early-rate-of-torque-development-in-individuals-with-acl-reconstruction
#9
Derek N Pamukoff, Brian Pietrosimone, Eric D Ryan, Dustin R Lee, Lee E Brown, J Troy Blackburn
The purpose of this study was to compare the effect of whole body vibration (WBV) and local muscle vibration (LMV) on early and late quadriceps rate of torque development (RTD), and electromechanical delay (EMD) in individuals with anterior cruciate ligament reconstruction (ACLR). 20 individuals with ACLR were recruited for this study. Participants performed isometric squats while being exposed to WBV, LMV, or no vibration (control) in a randomized order during separate visits. Quadriceps early and late quadriceps RTD, and EMD were assessed during a maximal voluntary isometric knee extension prior to and immediately following WBV, LMV, or control...
November 19, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27923622/factors-predicting-quadriceps-femoris-muscle-atrophy-during-the-first-12weeks-following-anterior-cruciate-ligament-reconstruction
#10
T Grapar Žargi, Matej Drobnič, Renata Vauhnik, Jadran Koder, Alan Kacin
BACKGROUND: Factors predicting quadriceps femoris muscle (QF) atrophy during the early period after arthroscopic ACL reconstruction have not been extensively studied. It is also yet to be confirmed whether muscle atrophy is a key determinant of postoperative QF weakness. METHODS: Mean changes in QF volume, MVIC torque and isometric endurance time were analysed in 25 patients prior to and at four and 12 weeks after surgery. A multivariable regression model of change in QF volume was made from combination of several parameters of preoperative QF size and strength and postoperative joint recovery...
December 3, 2016: Knee
https://www.readbyqxmd.com/read/27909676/anatomic-double-bundle-anterior-cruciate-ligament-reconstruction-with-a-free-quadriceps-tendon-autograft
#11
Sergiu Caterev, Dan Viorel Nistor, Adrian Todor
Anatomic double-bundle anterior cruciate ligament (ACL) reconstruction aims to restore the 2 functional bundles of the ACL in an attempt to better reproduce the native biomechanics of the injured knee and promote long-term knee health. However, this concept is not fully accepted and is not performed on a standard basis. In addition, the superiority of this technique over the conventional single-bundle technique has been questioned, especially the long-term clinical results. One of the down sides of the double-bundle reconstruction is the complexity of the procedure, with increased risks, operative time, and costs compared with the single-bundle procedure...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27907934/restriction-of-postoperative-joint-loading-in-a-murine-model-of-anterior-cruciate-ligament-reconstruction-botulinum-toxin-paralysis-and-external-fixation
#12
Amir Lebaschi, Xiang-Hua Deng, Nathan W Coleman, Christopher L Camp, Jianchun Zong, Andrew Carbone, Camila B Carballo, Guang-Ting Cong, Zoe M Album, Scott A Rodeo
Control of knee motion in small animal models is necessary to study the effect of mechanical load on the healing process. This can be especially challenging in mice, which are being increasingly used for various orthopedic reconstruction models. We explored the feasibility of botulinum toxin (Botox; Allergan, Dublin, Ireland) paralysis and a newly designed external fixator to restrict motion of the knee in mice undergoing anterior cruciate ligament (ACL) reconstruction. Nineteen C57BL/6 mice were allocated to two groups: (1) Botox group (n = 9) and (2) external fixator group (n = 10)...
December 1, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27836905/electrophysiological-study-of-femoral-nerve-function-after-a-continuous-femoral-nerve-block-for-anterior-cruciate-ligament-reconstruction-a-randomized-controlled-single-blind-trial
#13
Kevin Stebler, Robin Martin, Kyle Robert Kirkham, Thierry Küntzer, Istvan Bathory, Eric Albrecht
BACKGROUND: A continuous femoral nerve block (CFNB) is an effective analgesic treatment after anterior cruciate ligament (ACL) reconstruction but may result in transient femoral nerve injuries and quadriceps muscle weakness, which in turn contribute to worsened functional outcomes. PURPOSE: To compare electrophysiological criteria of a femoral nerve injury as well as functional and pain-related outcomes after ACL reconstruction when analgesia was provided by a CFNB or intravenous patient-controlled analgesic of morphine (IV PCA)...
November 11, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27818974/index-of-fatigue-quadriceps-in-soccer-athletes-after-anterior-cruciate-ligament-reconstruction
#14
Maria Luzete Costa Cavalcante, Paulo Renan Lima Teixeira, Tamara Cristina Silva Sousa, Pedro Olavo de Paula Lima, Rodrigo Ribeiro Oliveira
OBJECTIVE: The present study aimed to evaluate the muscle fatigue of the quadriceps muscle in high-performance soccer players undergoing (anterior cruciate ligament) ACL reconstruction. METHODS: We evaluated 17 high-performance soccer players from three professional soccer teams of a state in Brazil from August 2011 to July 2012. All subjects were evaluated between 5.5 and 7 months after ACL reconstruction with a Biodex® isokinetic dynamometer (System 4 Pro) with test protocol CON/CON at 60°/s and 300°/s with 5 and 15 repetitions, respectively...
September 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/27811515/anterior-cruciate-ligament-reconstruction-in-pediatric-and-adolescent-patients-using-quadriceps-tendon-autograft
#15
Jay Albright, Ariel Kiyomi Lepon, Stephanie Mayer
Many techniques for reconstruction of pediatric and adolescent anterior cruciate ligament (ACL) ruptures have been described, yet the best technique to reproduce normal kinematics of the knee while causing minimal growth disturbance is not definitively determined. We describe a technique which adapts the Allen Anderson technique for all-inside, all-epiphyseal, anatomic ACL reconstruction. However, this technique uses a novel quadriceps tendon-patellar bone-autograft to provide the best-possible patient outcomes...
December 2016: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/27775426/postural-stability-and-responses-to-vibrations-in-patients-after-anterior-cruciate-ligament-surgical-reconstruction
#16
Z Hirjaková, H Šingliarová, D Bzdúšková, J Kimijanová, K Bučková, P Valkovič, F Hlavačka
The aim of the study was to evaluate the effect of surgical reconstruction of anterior cruciate ligament (ACL) on postural stability and responses to lower limb (LL) muscles vibrations. Centre of pressure (CoP) was measured in 17 subjects during stance on firm/foam surface with eyes open/closed and during unilateral vibrations of LL muscles (m. triceps surae - TS, m. quadriceps femoris - Q, m. quadriceps femoris and hamstrings simultaneously - QH). The measurements were performed: 1) preoperatively, 2) six weeks and 3) three months after the reconstruction...
October 24, 2016: Physiological Research
https://www.readbyqxmd.com/read/27553297/factors-affecting-quadriceps-strength-recovery-after-anterior-cruciate-ligament-reconstruction-with-hamstring-autografts-in-athletes
#17
Yuya Ueda, Takehiko Matsushita, Daisuke Araki, Akihiro Kida, Kohei Takiguchi, Yohei Shibata, Kumiko Ono, Rei Ono, Tomoyuki Matsumoto, Koji Takayama, Yoshitada Sakai, Masahiro Kurosaka, Ryosuke Kuroda
PURPOSE: Patients typically return to sports activities 6-12 months after anterior cruciate ligament (ACL) reconstruction, and quadriceps strength has been used as one of the criteria to return to sports activities. The purpose of this study is to identify the factors that affect quadriceps strength recovery after ACL reconstruction with a hamstring tendon autograft 6 months after surgery. METHODS: Isokinetic quadriceps strength at 60°/s was measured preoperatively and 6 months after surgery in 193 athletes who underwent ACL reconstruction with a hamstring tendon autograft...
August 23, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27539507/evidence-based-clinical-practice-update-practice-guidelines-for-anterior-cruciate-ligament-rehabilitation-based-on-a-systematic-review-and-multidisciplinary-consensus
#18
Nicky van Melick, Robert E H van Cingel, Frans Brooijmans, Camille Neeter, Tony van Tienen, Wim Hullegie, Maria W G Nijhuis-van der Sanden
AIM: The Royal Dutch Society for Physical Therapy (KNGF) instructed a multidisciplinary group of Dutch anterior cruciate ligament (ACL) experts to develop an evidence statement for rehabilitation after ACL reconstruction. DESIGN: Clinical practice guideline underpinned by systematic review and expert consensus. DATA SOURCES: A multidisciplinary working group and steering group systematically reviewed the literature and wrote the guideline...
December 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27532454/asymmetry-and-thigh-muscle-coactivity-in-fatigued-anterior-cruciate-ligament-reconstructed-elite-skiers
#19
Matthew J Jordan, Per Aagaard, Walter Herzog
PURPOSE: The acute effects of fatigue on functional interlimb asymmetry and quadriceps/hamstring muscle activity levels, including preparatory coactivation during squat jump takeoff and landing, were evaluated in elite alpine ski racers with/without anterior cruciate ligament reconstruction (ACLR). METHODS: Twenty-two elite ski racers (ACLR, n = 11; control, n = 11) performed an 80-s repeated squat jump test (jump test) on a dual force plate system with simultaneous EMG recordings in vastus lateralis, vastus medialis, semitendinosus, and biceps femoris...
January 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27465632/a-novel-mass-spring-damper-model-analysis-to-identify-landing-deficits-in-athletes-returning-to-sport-after-acl-reconstruction
#20
Daniel K Schneider, Alli Gokeler, Bert Otten, Kevin R Ford, Timothy E Hewett, Jon Divine, Angelo J Colosimo, Robert S Heidt, Gregory D Myer
A mass-spring-damper model may serve as an extension of biomechanical data from three-dimensional motion analysis and epidemiological data which help to delineate populations at-risk for anterior cruciate ligament (ACL) injuries. The purpose of this study was to evaluate such a model.\Thirty-six ACL reconstruction (ACLR) group subjects and 67 controls (CTRL) completed single-leg drop landing and single-leg broad jump tasks. Landing ground reaction force data were collected and analyzed with a mass-spring damper model...
July 19, 2016: Journal of Strength and Conditioning Research
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