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Ligament cruciate anterior

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https://www.readbyqxmd.com/read/28727937/preoperative-short-form-health-survey-score-is-predictive-of-return-to-play-and-minimal-clinically-important-difference-at-a-minimum-2-year-follow-up-after-anterior-cruciate-ligament-reconstruction
#1
Benedict U Nwachukwu, Brenda Chang, Pramod B Voleti, Patricia Berkanish, Matthew R Cohn, David W Altchek, Answorth A Allen, Riley J Williams
BACKGROUND: There is increased interest in understanding the preoperative determinants of postoperative outcomes. Return to play (RTP) and the patient-reported minimal clinically important difference (MCID) are useful measures of postoperative outcomes after anterior cruciate ligament reconstruction (ACLR). PURPOSE: To define the MCID after ACLR and to investigate the role of preoperative outcome scores for predicting the MCID and RTP after ACLR. STUDY DESIGN: Case-control study; Level of evidence, 3...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28727642/injuries-among-recreational-football-players-results-of-a-prospective-cohort-study
#2
Gürhan Dönmez, Feza Korkusuz, Levent Özçakar, Yiğitcan Karanfil, Erhan Dursun, Savaş Kudaş, Mahmut Nedim Doral
OBJECTIVES: To establish the incidence and patterns of football injuries and associated consequences in daily life and labor loss, among public employees. DESIGN: Prospective cohort study. SETTING: Football tournament between public employees in Turkey. PARTICIPANTS: A total of 1821 recreational players from 78 teams. MAIN OUTCOME MEASURES: Injury rates (injuries per 1000 hours of football exposure) during tournament by age group, as well as prevalence, severity, and injury types were recorded...
July 14, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28724372/comparison-of-artificial-graft-versus-autograft-in-anterior-cruciate-ligament-reconstruction-a-meta-analysis
#3
Zhen-Yu Jia, Chen Zhang, Shi-Qi Cao, Chen-Chen Xue, Tian-Ze Liu, Xuan Huang, Wei-Dong Xu
BACKGROUND: Critically evaluation and summarization for the outcomes between autografts and artificial grafts using in anterior cruciate ligament (ACL) reconstruction have not been performed currently. The purpose of this study is to compare the clinical outcomes between artificial ligaments and autografts at a short- to mid-term follow-up. METHODS: A computerized search of the databases was conducted including Medline, Embase, and the Cochrane library. Only prospective or retrospective comparative studies with a minimum 2-year follow-up and a minimum sample size of 15 for each group were considered for inclusion...
July 19, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28723822/biomechanical-differences-in-female-basketball-and-soccer-players-during-multi-directional-jump-landings
#4
Jeffrey B Taylor, Kevin R Ford, Randy J Schmitz, Scott E Ross, Terry A Ackerman, Sandra J Shultz
Anterior cruciate ligament injury prevention programs are less successful in basketball than soccer and may be due to distinct movement strategies that these athletes develop from sport-specific training. The purpose of this study was to identify biomechanical differences between female basketball and soccer players during multi-directional jump landings. Lower extremity biomechanics of eighty-nine female athletes who played competitive basketball (n=40) or soccer (n=49) at the middle- or high-school level were analyzed with three-dimensional motion analysis during a drop vertical jump (DVJ), double- (SAG-DL) and single-leg forward jump (SAG-SL), and double- (FRONT-DL) and single-leg (FRONT-SL) lateral jump...
July 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28722467/the-influence-of-lower-extremity-lean-mass-on-landing-biomechanics-during-prolonged-exercise
#5
Melissa M Montgomery, Amanda J Tritsch, John R Cone, Randy J Schmitz, Robert Henson, Sandra J Shultz
CONTEXT:   The extent to which lower extremity lean mass (LELM) relative to total body mass influences one's ability to maintain safe landing biomechanics during prolonged exercise when injury incidence increases is unknown. OBJECTIVES:   To examine the influence of LELM on (1) pre-exercise lower extremity biomechanics and (2) changes in biomechanics during an intermittent exercise protocol (IEP) and (3) determine whether these relationships differ by sex. We hypothesized that less LELM would predict higher-risk baseline biomechanics and greater changes toward higher-risk biomechanics during the IEP...
July 19, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28718171/younger-patients-and-men-achieve-higher-outcome-scores-than-older-patients-and-women-after-anterior-cruciate-ligament-reconstruction
#6
Kate E Webster, Julian A Feller
BACKGROUND: There is some evidence that functional performance and validated outcome scores differ according to the gender, age, and sport participation status of a patient after anterior cruciate ligament (ACL) reconstruction. However, the impact of these three factors, and interaction among them, has not been studied across a large relatively homogeneous group of patients to better elucidate their impact. QUESTIONS/PURPOSES: We reviewed a large cohort of patients who had undergone ACL reconstruction to determine if ROM, knee laxity, objective performance measures, and validated outcome scores differed according to (1) gender; (2) age; and (3) sport participation status...
July 17, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28717622/semitendinosus-muscle-architecture-during-maximum-isometric-contractions-in-individuals-with-anterior-cruciate-ligament-reconstruction-and-controls
#7
Evagelos Karagiannidis, Eleftherios Kellis, Nikiforos Galanis, Baltzopoulos Vasilios
BACKGROUND: The most widely used graft as a replacement in anterior cruciate ligament (ACL) reconstruction is the semitendinosus (ST) tendon graft. After harvesting for ACL reconstruction, the hamstring tendon regenerates in most people and becomes similar to normal. The effect of graft harvest on muscle morphology and function remains unclear. The present study aimed to examine the morphology of the ST during isometric contraction after harvesting the ST tendon for ACL reconstruction...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28717621/effects-of-the-menstrual-cycle-on-lower-limb-biomechanics-neuromuscular-control-and-anterior-cruciate-ligament-injury-risk-a-systematic-review
#8
REVIEW
Vivek Balachandar, Jan-Luigi Marciniak, Owen Wall, Chandrika Balachandar
OBJECTIVE: Anterior cruciate ligament (ACL) injury has a devastating impact on physical and psychological disability. Rates of ACL rupture are significantly greater in females than males during the same sports. Hormonal mechanisms have been proposed but are complex and poorly understood. This systematic review evaluates the effects of menstrual cycle on: 1) lower-limb biomechanics, 2) neuromuscular control, and 3) ACL injury risk. METHODS: The MEDLINE, CINAHL, SPORTSDiscus, Web of Science, and Google Scholar databases were searched from inception to August 2016 for studies investigating the effects of the menstrual cycle on lower-limb biomechanics, neuromuscular control, and ACL injury risk in females...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28717620/the-influence-of-muscle-tendon-forces-on-acl-loading-during-jump-landing-a-systematic-review
#9
REVIEW
Katja Oberhofer, S H Hosseini Nasab, Pascal Schütz, Barbara Postolka, Jess G Snedeker, William R Taylor, Renate List
BACKGROUND: The goal of this review is to summarise and discuss the reported influence of muscle-tendon forces on anterior cruciate ligament (ACL) loading during the jump-landing task by means of biomechanical analyses of the healthy knee. METHODS: A systematic review of the literature was conducted using different combinations of the terms "knee", "ligament", "load", "tension ", "length", "strain", "elongation" and "lengthening". 26 original articles (n=16 in vitro studies; n=10 in situ studies) were identified which complied with all inclusion/exclusion criteria...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28716691/acute-injuries-in-finnish-junior-floorball-league-players
#10
Kati Pasanen, Jussi Hietamo, Tommi Vasankari, Pekka Kannus, Ari Heinonen, Urho M Kujala, Ville M Mattila, Jari Parkkari
OBJECTIVES: To investigate the incidence and characteristics of acute time-loss injuries in Finnish junior floorball league players. DESIGN: Prospective cohort study with 3-year follow-up. METHODS: One hundred and eighty-six female and male players (mean age 16.6±1.4) took part in the follow-up study (2011-2014). The training hours and games were recorded on a team diary. Floorball related acute injuries were registered and verified by a research physician...
July 4, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28714793/equivalent-knee-injury-and-osteoarthritis-outcome-scores-12-and-24-months-after-anterior-cruciate-ligament-reconstruction-results-from-the-swedish-national-knee-ligament-register
#11
Kristian Samuelsson, Robert A Magnussen, Eduard Alentorn-Geli, Ferid Krupic, Kurt P Spindler, Christer Johansson, Magnus Forssblad, Jón Karlsson
BACKGROUND: It is not clear whether Knee injury and Osteoarthritis Outcome Score (KOOS) results will be different 1 or 2 years after anterior cruciate ligament (ACL) reconstruction. PURPOSE: To investigate within individual patients enrolled in the Swedish National Knee Ligament Register whether there is equivalence between KOOS at 1 and 2 years after primary ACL reconstruction. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: This cohort study was based on data from the Swedish National Knee Ligament Register during the period January 1, 2005, through December 31, 2013...
July 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28714786/effects-of-a-prophylactic-knee-sleeve-on-anterior-cruciate-ligament-loading-during-sport-specific-movements
#12
Jonathan Sinclair, Paul John Taylor
CONTEXT: Prophylactic knee bracing is extensively utilized in athletic populations, to reduce the high risk from knee injuries, but their role in the attenuation of anterior cruciate ligament (ACL) pathologies is not well understood. OBJECTIVE: The aim of the current investigation was to investigate the effects of a prophylactic knee sleeve on ACL loading parameters linked to the aetiology of injury in recreational athletes. SETTING: Laboratory...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28714764/abdominal-hollowing-reduces-lateral-trunk-displacement-during-single-leg-squats-in-healthy-females-but-does-not-affect-peak-hip-abduction-angle-or-knee-abductio-angle-moment
#13
Lukas D Linde, Jessica Archibald, Eve C Lampert, John Z Srbely
CONTEXT: Females suffer 4-6 times more non-contact anterior cruciate ligament (ACL) injuries than males due to neuromuscular control deficits of the hip musculature leading to increases in hip adduction angle, knee abduction angle, and knee abduction moment during dynamic tasks such as single-leg squats. Lateral trunk displacement has been further related to ACL injury risk in females, leading to the incorporation of core strength/stability exercises in ACL preventative training programs...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28712544/the-effect-of-leg-dominance-and-landing-height-on-acl-loading-among-female-athletes
#14
Hossein Mokhtarzadeh, Katie Ewing, Ina Janssen, Chen-Hua Yeow, Nicholas Brown, Peter Vee Sin Lee
Female athletes are more prone to anterior cruciate ligament (ACL) injury. A neuromuscular imbalance called leg dominance may provide a biomechanical explanation. Therefore, the purpose of this study was to compare the side-to-side lower limb differences in movement patterns, muscle forces and ACL forces during a single-leg drop-landing task from two different heights. We hypothesized that there will be significant differences in lower limb movement patterns (kinematics), muscle forces and ACL loading between the dominant and non-dominant limbs...
July 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28712027/concomitant-meniscal-injury-in-anterior-cruciate-ligament-reconstruction%C3%A2-does-not-lead-to-poorer-short-term-post-operative-outcomes
#15
Amritpal Singh, Desmond Thiam Wei, Cheryl Tan Pei Lin, Shen Liang, Saumitra Goyal, Kimberly-Anne Tan, Brian Zhaojie Chin, Lingaraj Krishna
PURPOSE: The main objective was to compare post-operative outcomes in patients undergoing anterior cruciate ligament (ACL) reconstruction both with and without concomitant meniscus injury at a mean follow-up of 3.5 years. The secondary objective was to study the effect of different meniscal injury sites and treatment modalities on post-operative outcomes (PROS). METHODS: This is a retrospective analysis of a prospectively maintained database of patients undergoing ACL reconstruction at our tertiary institution between 2009 and 2012...
July 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28712025/side-to-side-asymmetries-in-landing-mechanics-from-a-drop-vertical-jump-test-are-not-related-to-asymmetries-in-knee-joint-laxity-following-anterior-cruciate-ligament-reconstruction
#16
Christophe A G Meyer, Paul Gette, Caroline Mouton, Romain Seil, Daniel Theisen
PURPOSE: Asymmetries in knee joint biomechanics and increased knee joint laxity in patients following anterior cruciate ligament reconstruction (ACLR) are considered risk factors for re-tear or early onset of osteoarthritis. Nevertheless, the relationship between these factors has not been established. The aim of the study was to compare knee mechanics during landing from a bilateral drop vertical jump in patients following ACLR and control participants and to study the relationship between side-to-side asymmetries in landing mechanics and knee joint laxity...
July 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28712024/knee-hyperextension-does-not-adversely-affect-dynamic-in-vivo-kinematics-after-anterior-cruciate-ligament-reconstruction
#17
Kanto Nagai, Tom Gale, Elmar Herbst, Yasutaka Tashiro, James J Irrgang, Scott Tashman, Freddie H Fu, William Anderst
PURPOSE: To evaluate the effect of knee hyperextension on dynamic in vivo kinematics after anterior cruciate ligament reconstruction (ACL-R). METHODS: Forty-two patients underwent unilateral ACL-R. Twenty-four months after surgery, subjects performed level walking and downhill running on a treadmill while dynamic stereo radiographs were acquired at 100 (walking) and 150 Hz (running). Tibiofemoral motion was determined using a validated model-based tracking process, and tibiofemoral translations/rotations were calculated...
July 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28710739/prevention-and-management-of-post-operative-complications-following-acl-reconstruction
#18
REVIEW
Brian J Eckenrode, James L Carey, Brian J Sennett, Miltiadis H Zgonis
PURPOSE OF REVIEW: The goal of this paper is to review the current management and prevention of post-operative complications after anterior cruciate ligament (ACL) reconstruction. Trends in rehabilitation techniques will be presented, in addition to suggestions for interventions and expected milestones in ACL reconstruction recovery. RECENT FINDINGS: ACL reconstruction protocols have evolved to more of a criterion-based progression rather than a tissue-healing time frame...
July 14, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28710543/acute-non-contact-anterior-cruciate-ligament-tears-are-associated-with-relatively-increased-vastus-medialis-to-semimembranosus-cross-sectional-area-ratio-a-case-control-retrospective-mr-study
#19
Ged G Wieschhoff, Jacob C Mandell, Gregory J Czuczman, Violeta Nikac, Nehal Shah, Stacy E Smith
OBJECTIVE: Hamstring muscle deficiency is increasingly recognized as a risk factor for anterior cruciate ligament (ACL) tears. The purpose of this study is to evaluate the vastus medialis to semimembranosus cross-sectional area (VM:SM CSA) ratio on magnetic resonance imaging (MRI) in patients with ACL tears compared to controls. MATERIALS AND METHODS: One hundred knee MRIs of acute ACL tear patients and 100 age-, sex-, and side-matched controls were included. Mechanism of injury, contact versus non-contact, was determined for each ACL tear subject...
July 15, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28707248/macrophage-m1-plays-a-positive-role-in-aseptic-inflammation-related-graft-loosening-after-anterior-cruciate-ligament-reconstruction-surgery
#20
Bing Song, Chuan Jiang, Huan Luo, Zhong Chen, Jingyi Hou, Yunfeng Zhou, Rui Yang, Huiyong Shen, Weiping Li
Macrophage-related inflammatory response is one of the main biological factors resulting in failure of anterior cruciate ligament (ACL) reconstruction, although the specific pathomechanism remains to be clarified. Our aim was to investigate the association between graft loosening and macrophage-related inflammation in cases of loosening of reconstructed ACL autografts. Tissue samples were obtained from 21 patients who underwent a second-look arthroscopy within the first year after arthroscopic ACL reconstruction using single-bundle hamstring tendon autografts...
July 13, 2017: Inflammation
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