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https://www.readbyqxmd.com/read/28095108/the-relationship-between-2d-knee-valgus-angle-during-single-leg-squat-single-leg-land-and-drop-jump-screening-tests
#1
Allan Munro, Lee Herrington, Paul Comfort
CONTEXT: Anterior Cruciate Ligament (ACL) and Patellofemoral Joint (PFJ) injuries are a significant problem among female athletes. A number of screening tasks have been used in the literature to identify those at greatest risk of injury. To date, no study has examined the relationship in two-dimensional (2D) knee valgus between common screening tasks to determine whether individuals exhibit similar movement patterns across tasks. OBJECTIVE: to establish whether frontal plane projection angle (FPPA) during the single leg squat (SLS), single leg land (SLL) and drop jump (DJ) are related...
January 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28095091/factors-informing-fear-of-reinjury-after-anterior-cruciate-ligament-reconstruction
#2
Cheryl A Ross, Amanda Clifford, Quinette A Louw
OBJECTIVE: Fear of reinjury is associated with cessation of sport after anterior cruciate ligament (ACL) reconstruction despite normal postoperative knee function. The objective of this study is to describe factors informing athletes' experience of fear of reinjury post ACL reconstruction, in athletes who cited fear as the sole reason for not returning to their pre-injury level of sport. DESIGN: Mixed-methods study design of qualitative and a preliminary quantitative component...
January 17, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28089224/loading-of-the-medial-meniscus-in-the-acl-deficient-knee-a-multibody-computational-study
#3
Trent M Guess, Swithin Razu
The menisci of the knee reduce tibiofemoral contact pressures and aid in knee lubrication and nourishment. Meniscal injury occurs in half of knees sustaining anterior cruciate ligament injury and the vast majority of tears in the medial meniscus transpire in the posterior horn region. In this study, computational multibody models of the knee were derived from medical images and passive leg motion for two female subjects. The models were validated against experimental measures available in the literature and then used to evaluate medial meniscus contact force and internal hoop tension...
January 11, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28062120/robotic-simulation-of-identical-athletic-task-kinematics-on-cadaveric-limbs-exhibits-a-lack-of-differences-in-knee-mechanics-between-contralateral-pairs
#4
Nathaniel A Bates, April L McPhearson, Rebecca J Nesbitt, Jason T Shearn, Gregory D Myer, Timothy E Hewett
Limb asymmetry is a known factor for increased ACL injury risk. These asymmetries are normally observed during in vivo testing. Prior studies have developed in vitro testing methodologies driven by in vivo kinematics to investigate knee mechanics relative to ACL injury. The objective of this study was to determine if mechanical side-to-side asymmetries persist in contralateral pairs during in vitro simulation testing. In vivo kinematics were recorded for male and female drop vertical jump and sidestep cutting tasks...
December 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28050456/femoral-and-tibial-tunnel-widening-following-anterior-cruciate-ligament-reconstruction-using-various-modalities-of-fixation-a-prospective-observational-study
#5
Dileep Krishnamoorthy Srinivas, Mahesha Kanthila, Rama Prakasha Saya, Jvs Vidyasagar
INTRODUCTION: Bone tunnel enlargement after Anterior Cruciate Ligament Reconstruction (ACL-R) is a well-accepted phenomenon but there are very few published data comparing the extent of tunnel widening by various methods of fixation after ACL-R. AIM: To compare the femoral and tibial tunnel widening following ACL-R with different methods of fixation using CT scan. MATERIALS AND METHODS: This one year prospective study included all patients with chronic Anterior Cruciate Ligament (ACL) injury who underwent primary arthroscopic ACL-R using tripled hamstring tendon autograft...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28031496/arthroscopic-transphyseal-anterior-cruciate-ligament-reconstruction-in-adolescent-athletes
#6
Luca Dei Giudici, Roberto Fabbrini, Luca Garro, Serena Arima, Antonio Gigante, Agostino Tucciarone
PURPOSE: To evaluate the 5-year outcome of arthroscopic transphyseal anterior cruciate ligament (ACL) reconstruction in 19 adolescent athletes. METHODS: 14 male and 5 female adolescent athletes aged 12 to 16 (mean, 13.9) years with Tanner stage 2 or 3 open physes underwent arthroscopic transphyseal ACL reconstruction by a single surgeon and were followed up for 5 years. Patients were evaluated using the numerical rating score (NRS) for pain, knee osteoarthritis outcome score (KOOS), International Knee Documentation Committee (IKDC) score, Tegner Activity Scale, and Lysholm Score, as well as the leg length discrepancy, femorotibial alignment, varus or valgus deformities, active and passive knee range of motion...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28031492/tibial-plateau-slopes-in-indian-patients-with-or-without-anterior-cruciate-ligament-injury-a-magnetic-resonance-imaging-study
#7
Shyam Sundar, Sarthak Patnaik, Bobur Ubaydullaev, Vinodh Kolandavelu, David Rajan
PURPOSE: To compare anterior cruciate ligament (ACL)-injured and ACL-intact patients as well as males and females in terms of tibial plateau slopes to determine their association with ACL injury. METHODS: Magnetic resonance images (MRI) of the knee of 310 male and 179 female skeletally mature Indian patients (mean age, 40 years) with (n=170+29) or without (n=140+150) ACL injury were reviewed. Their medial and lateral tibial plateau slopes (MTPS and LTPS), medial tibial plateau depth (MTPD), and lateral tibial plateau height (LTPH) were measured using MRI...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28031491/correlation-of-femoral-tunnel-length-with-body-height-limb-length-and-thigh-length-in-indian-patients-undergoing-anterior-cruciate-ligament-reconstruction
#8
Ravi Gupta, Anubhav Malhotra, Pawan Kumar, Gladson David Masih
PURPOSE: To measure the femoral tunnel length created through a far medial portal and determine its correlation with body height, limb length, and thigh length in 404 Indian patients undergoing anterior cruciate ligament (ACL) reconstruction. METHODS: 364 male and 40 female Indian patients aged 18 to 51 (mean, 26.8) years underwent ACL reconstruction by a single surgeon using the hamstrings tendon autograft. Their body height, limb length, and thigh length were measured by a single assessor, as was the femoral tunnel length...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28028974/myocardial-ischaemia-coronary-atherosclerosis-and-pulmonary-pressure-elevation-in-antiphospholipid-syndrome-patients
#9
Agnieszka Padjas, Wojciech Płazak, Magdalena Celińska-Lowenhoff, Adam Mazurek, Carlo Perricone, Piotr Podolec, Jacek Musiał
BACKGROUND: Thrombotic events in antiphospholipid syndrome (APS) involve venous and arterial circulation with the possible involvement of coronary or pulmonary microcirculation. OBJECTIVES: To evaluate the influence of antiphospholipid antibodies (aPL) and on myocardial ischaemia assessed by single-photon emission computerized tomography (SPECT), coronary atherosclerosis assessed by multidetector computerized tomography (MDCT) and pulmonary pressure assessed by transthoracic echocardiography (TTE) in patients with primary antiphospholipid syndrome (PAPS)...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28027452/all-inside-all-epiphyseal-anterior-cruciate-ligament-reconstruction-in-skeletally-immature-athletes
#10
Frank A Cordasco, Stephanie Watson Mayer, Daniel W Green
BACKGROUND: Anterior cruciate ligament (ACL) injuries in skeletally immature athletes are increasing. PURPOSE: To evaluate the 2-year clinical outcomes of all-inside, all-epiphyseal ACL reconstruction in skeletally immature athletes with 3 to 6 years of remaining growth, with a focus on return to sport and the incidence of second surgery. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Twenty-three skeletally immature athletes were prospectively evaluated after all-epiphyseal ACL reconstruction utilizing a hamstring autograft...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27995286/revision-surgery-in-anterior-cruciate-ligament-reconstruction-a-cohort-study-of-17-682-patients-from-the-swedish-national-knee-ligament-register
#11
Neel Desai, Daniel Andernord, David Sundemo, Eduard Alentorn-Geli, Volker Musahl, Freddie Fu, Magnus Forssblad, Kristian Samuelsson
PURPOSE: To investigate the association between surgical variables and the risk of revision surgery after ACL reconstruction in the Swedish National Knee Ligament Register. METHODS: This cohort study was based on data from the Swedish National Knee Ligament Register. Patients who underwent primary single-bundle ACL reconstruction with hamstring tendon were included. Follow-up started with primary ACL reconstruction and ended with ACL revision surgery or on 31 December, 2014, whichever occurred first...
December 19, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27992239/differential-effects-of-two-rehabilitation-programs-following-anterior-cruciate-ligament-reconstruction
#12
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/27986989/cyclops-lesions-detected-by-mri-are-frequent-findings-after-acl-surgical-reconstruction-but-do-not-impact-clinical-outcome-over-2%C3%A2-years
#13
Luca Facchetti, Benedikt J Schwaiger, Alexandra S Gersing, Julio Brandao Guimaraes, Lorenzo Nardo, Sharmila Majumdar, Benjamin C Ma, Thomas M Link, Xiaojuan Li
OBJECTIVES: To assess the impact of cyclops lesions with MRI in patients treated for anterior cruciate ligament (ACL) tears on clinical outcome. METHODS: In 113 patients (age 29.8 ± 10.5y; 55 females; BMI 24.8 ± 3.7 kg/m(2)) with complete ACL tear, 3 T-MRI scans were obtained before, 6-months, 1-year (n = 75) and 2-years (n = 33) after ACL reconstruction. Presence and volume of cyclops lesions were assessed. Clinical outcomes were measured using the Knee injury and Osteoarthritis Outcome Score (KOOS) and differences between time points (∆KOOS) were calculated...
December 16, 2016: European Radiology
https://www.readbyqxmd.com/read/27923626/limitations-in-predicting-outcome-following-primary-acl-reconstruction-with-single-bundle-hamstring-autograft-a-systematic-review
#14
REVIEW
Vincent Vg An, Corey Scholes, Vikram A Mhaskar, William Hadden, David Parker
BACKGROUND: Anterior cruciate ligament reconstruction (ACLR) is one of the most well studied and performed procedures in the world. Thus, it would be useful to develop a tool to predict patient outcomes post-operatively to allow clinicians to optimise management. PURPOSE: To identify and summarise factors predictive of graft failure and patient-reported outcome (PROM) measures at minimum two years after ACLR with single-bundle quadruple hamstring autograft via the anteromedial portal technique...
December 3, 2016: Knee
https://www.readbyqxmd.com/read/27918596/degeneration-in-acl-injured-knees-with-and-without-reconstruction-in-relation-to-muscle-size-and-fat-content-data-from-the-osteoarthritis-initiative
#15
Pia M Jungmann, Thomas Baum, Michael C Nevitt, Lorenzo Nardo, Alexandra S Gersing, Nancy E Lane, Charles E McCulloch, Ernst J Rummeny, Thomas M Link
BACKGROUND: Anterior cruciate ligaments (ACL) injuries represent a major risk factor for early osteoarthritis (OA). PURPOSE: To evaluate the prevalence and 4-year progression of knee OA measured with 3T MR-imaging in individuals with ruptured, reconstructed or normal ACL and to assess the impact of thigh muscle characteristics. METHODS: A total of 54 knees (23/54 male, 31/54 female) were recruited from the Osteoarthritis Initiative (OAI). At baseline, 15/54 subjects had prevalent ACL ruptures and 15/54 subjects had prevalent ACL reconstruction (24/54 normal ACL)...
2016: PloS One
https://www.readbyqxmd.com/read/27904796/functional-hop-tests-and-tuck-jump-assessment-scores-between-female-division-i-collegiate-athletes-participating-in-high-versus-low-acl-injury-prone-sports-a-cross-sectional-analysis
#16
Philipp Hoog, Meghan Warren, Craig A Smith, Nicole J Chimera
BACKGROUND: Although functional tests including the single leg hop (SLH), triple hop (TH), cross over hop (COH) for distance, and the tuck jump assessment (TJA) are used for return to play (RTP) criteria for post anterior cruciate ligament (ACL) injury, sport-specific baseline measurements are limited. PURPOSE: The purpose of this study was to examine differences in SLH, TH, and COH distance and limb symmetry index (LSI), as well as total scores, number of jumps, and individual flaws of the TJA in 97 injury-free Division I (DI) collegiate female student athletes participating in ACL injury prone vs...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27900295/diagnostic-performance-of-volume-and-limited-oblique-mri-of-the-anterior-cruciate-ligament-compared-to-knee-arthroscopy
#17
Paula J Richards, Iain McCall, Alexandra Kraus, Mary Jones, Gayle Maffulli, Stephen Bridgman, Nicola Maffulli
BACKGROUND: Many strategies have been used to improve the visualisation of the ACL including sagittal, coronal oblique sequences, and 3D volume imaging. Nevertheless, the ACL may not always be visualised. METHODS: Two hundred and thirty-one consecutive patients (77 females; 154 males; average age 43.5, range 18 to 82 years; 205 with chronic, 20 acute, and 6 acute on chronic symptoms) underwent knee arthroscopy for mechanical symptoms within a week of MRI. After routine orthogonal sequences, if general MRI radiographers, with over four years experience, were not able to identify the presence of the ACL, then two 3D volume sequences and 2D limited sagittal oblique T1 sequences were performed...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27900188/single-leg-balance-and-core-motor-control-in-children-when-does-the-risk-for-acl-injury-occurs
#18
Allison B Hutchinson, Paul Yao, Mark R Hutchinson
INTRODUCTION: While numerous publications have demonstrated the correlation of poor single-leg balance and core motor control with an increased risk of anterior cruciate ligament (ACL) injuries in skeletally mature female athletes, few have analysed the preadolescent population regarding when indeed comparative deficits in balance and core control actually occur. The purpose of this study was to assess whether the neuromotor factors that place mature females at increased risk of ACL injury actually are present in preadolescents and if so when...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27888604/mri-depiction-and-3d-visualization-of-three-anterior-cruciate-ligament-bundles
#19
H Otsubo, Y Akatsuka, H Takashima, T Suzuki, D Suzuki, T Kamiya, Y Ikeda, T Matsumura, T Yamashita, K Shino
The anterior cruciate ligament (ACL) is divided into three fiber bundles (AM-M: anteromedial-medial, AM-L: anteromedial-lateral, PL: posterolateral). We attempted to depict the three bundles of the human ACL on MRI images and to obtain 3-dimensional visualization of them. Twenty-four knees of healthy volunteers (14 males, 10 females) were scanned by 3T-MRI using the fat suppression 3D coherent oscillatory state acquisition for the manipulation of imaging contrast (FS 3D-COSMIC). The scanned images were reconstructed after the isotropic voxel data, which allows the images to be reconstructed in any plane, was acquired...
November 26, 2016: Clinical Anatomy
https://www.readbyqxmd.com/read/27871658/rehabilitation-principles-of-the-anterior-cruciate-ligament-reconstructed-knee-twelve-steps-for-successful-progression-and-return-to-play
#20
REVIEW
Kevin E Wilk, Christopher A Arrigo
The rehabilitation process begins immediately after injury to the anterior cruciate ligament (ACL). The goal of preoperative rehabilitation is to prepare the patient for surgery. Current rehabilitation programs focus on strengthening exercises and proprioceptive and neuromuscular control drills to provide a neurologic stimulus. It is also important to address preexisting factors, especially for the female athlete, that may predispose to future injury, such as hip and hamstring weakness. Our goal in the rehabilitation program is to restore full, unrestricted function and to assist the patient to return to 100% of the preinjury level while achieving excellent long-term outcomes...
January 2017: Clinics in Sports Medicine
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