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Ligament injuries

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https://www.readbyqxmd.com/read/29234562/isokinetic-knee-muscle-strength-profile-in-brazilian-male-soccer-futsal-and-beach-soccer-players-a-cross-sectional-study
#1
Claudio A B de Lira, Naryana C Mascarin, Valentine Z Vargas, Rodrigo L Vancini, Marília S Andrade
Background: Anterior cruciate ligament injury is higher in soccer athletes as compared to athletes of other sports. Risk factors for anterior cruciate ligament injury include low knee hamstring/quadriceps strength ratio and bilateral strength deficits. Purpose: To investigate isokinetic thigh muscles strength, hamstring/quadriceps strength ratio, and bilateral strength comparisons in athletes who participate in professional soccer, futsal, and beach soccer. Study Design: Cross-sectional study...
December 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29234557/the-diagnostic-accuracy-of-the-lever-sign-for-detecting-anterior-cruciate-ligament-injury
#2
Edward P Mulligan, Amanda Anderson, Seth Watson, Robert J Dimeff
Background: An alternative physical examination procedure for evaluating the integrity of the anterior cruciate ligament (ACL) has been proposed in the literature but has not been validated in a broad population of patients with a symptomatic complaint of knee pain for its diagnostic value. Purpose: To investigate the diagnostic accuracy of the Lever Sign to detect ACL tears and compare the results to Lachman testing in both supine and prone positions. Study design: Prospective, blinded, diagnostic accuracy study...
December 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29230875/kinetics-of-plasma-cell-free-dna-and-creatine-kinase-in-a-canine-model-of-tissue-injury
#3
I J Wilson, R K Burchell, A J Worth, S E Burton, K R Gedye, K J Clark, K R Crosse, M Jack, T F Odom, S J De Grey, K M S McGlade, S C Tomlin, N Lopez-Villalobos, A Gal
BACKGROUND: Cell-free DNA (cfDNA) comprises short, double-stranded circulating DNA sequences released from damaged cells. In people, cfDNA concentrations correlate well with disease severity and tissue damage. No reports are available regarding cfDNA kinetics in dogs. OBJECTIVES/HYPOTHESIS: Cell-free DNA will have a short biological half-life and would be able to stratify mild, moderate, and severe tissue injury. Our study aims were to determine the kinetics and biological half-life of cfDNA and to contrast them with those of creatine kinase (CK)...
December 12, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29227374/collateral-ligament-knee-injuries-in-pediatric-and-adolescent-athletes
#4
Dennis E Kramer, Patricia E Miller, Iman K Berrahou, Yi-Meng Yen, Benton E Heyworth
BACKGROUND: The majority of research on medial (MCL) and lateral (LCL) collateral ligament injuries has focused on adults and combined collateral/cruciate injuries. The purpose of this study was to determine characteristics associated with isolated collateral ligament injuries in adolescents, and assess timing for return to sports. METHODS: Electronic medical records were queried to identify patients aged below 17 years who sustained a magnetic resonance imaging-confirmed isolated MCL or LCL injury over an 8-year period...
December 8, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29227373/incidence-of-meniscal-entrapment-and-associated-knee-injuries-in-tibial-spine-avulsions
#5
Jason T Rhodes, Peter C Cannamela, Aristides I Cruz, Meredith Mayo, Alexandra C Styhl, Connor G Richmond, Theodore J Ganley, Kevin G Shea
BACKGROUND: Tibial spine avulsions (TSA) have historically been treated as isolated injuries. Data on associated injuries are limited with existing literature reporting wide ranging incidences. The purpose of this multicenter study was to (1) describe the incidence of meniscal entrapment and associated knee injuries in TSA and to (2) compare surgical and magnetic resonance image (MRI) findings for these injuries. Our hypothesis is that tibial spine injuries are not usually isolated injuries, and other meniscal, ligament, and cartilage injuries may be present...
December 8, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29226206/unusual-complete-isolated-scaphoid-dislocation-report-of-a-case
#6
Efstathios G Ballas, Konstantinos Raptis, Ioannis P Stathopoulos, Nikolaos A Stavropoulos, Sarantis-Petros G Spyridonos
Isolated scaphoid dislocations are extremely rare injuries and are commonly associated with significant ligamentous disruptions. A dorsiflexion-supination force upon the hand is considered as the most common mechanism of injury. Different treatment options have been proposed for the management of this uncommon entity, ranging from conservative treatment with closed reduction and casting to a wide range of open or percutaneous surgical techniques. In this article, we reported ona case of this rare injury managed with open reduction and pinning along with ligamentous reconstruction...
September 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29225019/primary-versus-revision-anterior-cruciate-ligament-reconstruction-patient-demographics-radiographic-findings-and-associated-lesions
#7
Justin J Mitchell, Mark E Cinque, Grant J Dornan, Lauren M Matheny, Chase S Dean, Brad Kruckeberg, Gilbert Moatshe, Jorge Chahla, Robert F LaPrade
PURPOSE: The purpose of this study was to evaluate the differences in intra-articular pathology, demographic characteristics, and radiographic characteristics of the knee associated with primary anterior cruciate ligament reconstruction (ACLR) versus revision ACLR at the time of initial presentation with either a native anterior cruciate ligament tear or an anterior cruciate ligament graft tear. Secondarily, we aimed to investigate risk factors for concomitant medial and lateral meniscal tears and cartilage injuries at the time of ACLR...
December 7, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29225016/posterior-cruciate-ligament-injuries-of-the-knee-at-the-national-football-league-combine-an-imaging-and-epidemiology-study
#8
Catherine A Logan, Brendin R Beaulieu-Jones, George Sanchez, Jorge Chahla, Nicholas I Kennedy, Mark E Cinque, Robert F LaPrade, James M Whalen, Bryan G Vopat, Mark D Price, Matthew T Provencher
PURPOSE: To determine the epidemiology by player position, examination, imaging findings, and associated injuries of posterior cruciate ligament (PCL) injuries in players participating in the National Football League (NFL) Combine. METHODS: All PCL injuries identified at the NFL Combine (2009-2015) were reviewed. Data were obtained from the database organized by the NFL medical personnel for the compilation of the medical and physical performance examination results of NFL Draftees participating in the NFL Combine from 2009 to 2015...
December 7, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29221902/a-comparison-of-patellofemoral-cartilage-morphology-and-deformation-in-anterior-cruciate-ligament-deficient-versus-uninjured-knees
#9
Kwadwo A Owusu-Akyaw, Lauren N Heckelman, Hattie C Cutcliffe, E Grant Sutter, Zoë A Englander, Charles E Spritzer, William E Garrett, Louis E DeFrate
Anterior cruciate ligament (ACL) deficient patients have an increased rate of patellofemoral joint (PFJ) osteoarthritis (OA) as compared to the general population. Although the cause of post-injury OA is multi-factorial, alterations in joint biomechanics may predispose patients to cartilage degeneration. This study aimed to compare in vivo PFJ morphology and mechanics between ACL deficient and intact knees in subjects with unilateral ACL ruptures. Eight male subjects underwent baseline MRI scans of both knees...
November 27, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29216703/-effect-of-sports-training-in-angular-compartment-of-the-lower-limbs-in-children-footballers-aged-11-to-12-years-old
#10
J Burboa, M Bahamonde, M Inostroza, P Lillo, M Barahona, M Palet, J Hinzpeter
Anterior Cruciate Ligament (ACL) injury is an important cause of days lost in athletes. Most ACL injuries are non-contact and are associated with biomechanical risk factors that increase tension in the ACL: increased knee valgus (KV) and hip flexion (HF) and decreased flexion of knee (KF). Muscle around the knee contributes to knee stability, so fatigue produced by exercise could alter knee balance, increasing LCA tension. The aim of the study is to determine the angular behavior before and after a physical load for CF, RR and RV in children born in 2002-2003...
May 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29211969/use-of-platelet-rich-plasma-immediately-after-an-injury-did-not-improve-ligament-healing-and-increasing-platelet-concentrations-was-detrimental-in-an-in-vivo-animal-model
#11
Robert F LaPrade, Laurie R Goodrich, Jennifer Phillips, Grant J Dornan, Travis Lee Turnbull, Michael L Hawes, Kimi D Dahl, Ashley N Coggins, John Kisiday, David Frisbie, Jorge Chahla
BACKGROUND: Limited information in basic science and clinical trials exists to determine if ligament healing may be accelerated with the use of biological adjuvants, such as platelet-rich plasma (PRP). However, there has been widespread acceptance of PRP for use in clinical practice, despite an inadequate understanding of its biological mechanism of action. PURPOSE: To determine whether a single dose of PRP could accelerate ligament healing and correspondingly improve histological characteristics and biomechanical properties when injected immediately postoperatively into the injured medial collateral ligament (MCL) of New Zealand White rabbits...
December 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29209793/degenerative-changes-after-posterior-cruciate-ligament-reconstruction-are-irrespective-of-posterior-knee-stability-mri-based-long-term-results
#12
Clemens Gwinner, Andreas Weiler, Timm Denecke, Julian M M Rogasch, Heide Boeth, Tobias M Jung
INTRODUCTION: Posterior cruciate ligament reconstruction (PCLR) is advocated to prevent an early onset of osteoarthritis. We hypothesized that posterior instability after PCLR correlates with degenerative changes. MATERIALS AND METHODS: MRIs of 42 (12 female/30 male; 39 ± 9 years) patients were enrolled with a minimum 5-year follow-up (FFU) after PCLR. In addition, 25 contralateral and 15 follow-up MRIs (12 months after baseline) were performed. Degenerative changes were graded using WORMS...
December 6, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29209517/clinical-course-and-recommendations-for-patients-after-anterior-cruciate-ligament-injury-and-subsequent-reconstruction-a-narrative-review
#13
Alli Gokeler, Bart Dingenen, Caroline Mouton, Romain Seil
Almost all athletes who have suffered an anterior cruciate ligament (ACL) injury expect a full return to sports at the same pre-injury level after ACL reconstruction (ACLR). Detailed patient information on the reasonable outcomes of the surgery may be essential to improve patient satisfaction.Pre-operative rehabilitation before ACLR should be considered as an addition to the standard of care to maximise functional outcomes after ACLR.We propose an optimised criterion-based rehabilitation programme within a biopsychosocial framework...
October 2017: EFORT Open Reviews
https://www.readbyqxmd.com/read/29209025/oblique-corpectomy-in-the-cervical-spine
#14
Tomasz Tykocki, Łukasz A Poniatowski, Marcin Czyz, Guy Wynne-Jones
STUDY DESIGN: A narrative review. OBJECTIVES: A literature review of studies reporting on the application of oblique corpectomy (OC) in various pathologies of the cervical spine. SETTING: UK. METHODS: A search was carried out using the PubMed and Google Scholar up to 18 March 2017. Finally, 26 studies met the inclusion criteria. RESULTS: A multilevel OC shows good clinical outcomes in various pathologies in the cervical spine...
December 5, 2017: Spinal Cord
https://www.readbyqxmd.com/read/29208323/evaluation-of-posterior-cruciate-ligament-and-intercondylar-notch-in-subjects-with-anterior-cruciate-ligament-tear-a-comparative-flexed-knee-3d-magnetic-resonance-imaging-study
#15
Atul K Taneja, Frederico C Miranda, Marco K Demange, Marcelo P Prado, Durval C B Santos, Laercio A Rosemberg, Ronaldo H Baroni
PURPOSE: To determine if posterior cruciate ligament (PCL) and intercondylar notch (IN) morphometries and volumetrics act as risk factors for anterior cruciate ligament (ACL) tears. METHODS: A prospective case-controlled magnetic resonance imaging (MRI) study was conducted with subjects presenting noncontact knee injuries. Exclusion criteria were previous surgery, PCL tear, osteoarthritis, tumors, or infectious and inflammatory conditions. All participants underwent a flexed-knee 3-dimensional (3D) magnetic resonance imaging (MRI) to uniformly straighten PCL...
December 2, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29208010/prediction-of-progression-of-damage-to-articular-cartilage-2%C3%A2-years-after-anterior-cruciate-ligament-reconstruction-use-of-aggrecan-and-type-ii-collagen-biomarkers-in-a-retrospective-observational-study
#16
Yasumori Sobue, Toshihisa Kojima, Kazutoshi Kurokouchi, Shigeo Takahashi, Hiroaki Yoshida, Robin Poole, Naoki Ishiguro
BACKGROUND: We aimed to determine whether synovial fluid (SF) biomarkers can predict the progression of articular cartilage damage as determined by arthroscopic evaluation during and after anterior cruciate ligament (ACL) reconstruction. METHODS: Arthroscopic assessment of articular cartilage damage was performed twice in 62 patients, first during ACL reconstruction and then approximately 2 years later during implant removal for ligament fixation. SF levels of the collagenase-generated cleavage neoepitope of type II collagen (C2C) and proteoglycan glycosaminoglycans keratan sulfate (KS), chondroitin-4-sulfate (Δdi-C4S), and chondroitin-6-sulfate (Δdi-C6S) were measured at ACL reconstruction...
December 6, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29205258/sustained-intra-cartilage-delivery-of-low-dose-dexamethasone-using-a-cationic-carrier-for-treatment-of-post-traumatic-osteoarthritis
#17
A G Bajpayee, R E De la Vega, M Scheu, N H Varady, I A Yannatos, L A Brown, Y Krishnan, T J Fitzsimons, P Bhattacharya, E H Frank, A J Grodzinsky, R M Porter
Disease-modifying osteoarthritis drugs (DMOADs) should reach their intra-tissue target sites at optimal doses for clinical efficacy. The dense, negatively charged matrix of cartilage poses a major hindrance to the transport of potential therapeutics. In this work, electrostatic interactions were utilised to overcome this challenge and enable higher uptake, full-thickness penetration and enhanced retention of dexamethasone (Dex) inside rabbit cartilage. This was accomplished by using the positively charged glycoprotein avidin as nanocarrier, conjugated to Dex by releasable linkers...
December 5, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/29205072/enamel-matrix-proteins-regulate-hypoxia-induced-cellular-biobehavior-and-osteogenic-differentiation-in-human-periodontal-ligament-cells
#18
Z C Song, S Li, J C Dong, M J Sun, X L Zhang, R Shu
Hypoxia is a crucial microenvironment for inflamed periodontal tissue and periodontal wound healing. Enamel matrix proteins (EMPs) potentially can promote the formation of new periodontium. The effects of EMPs on periodontal ligament cells under hypoxia, however, remain unclear. We investigated the effects of EMPs on cellular biobehavior and osteogenic differentiation of human periodontal ligament cells (hPDLCs) under hypoxia. Under cobalt chloride (CoCl2)-induced hypoxia, cellular biobehavior of hPDLCs, including proliferation, attachment, spreading, and migration with or without EMPs, was evaluated by 3-(4, 5-dimethylthiazol- 2-yl)-2, 5-diphenyl tetrazolium bromide (MTT), cell counting, spreading area measurement and wound scratch assay...
December 5, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/29203000/revision-with-suture-tape-augmentation-after-failed-collateral-ligament-reconstruction-for-chronic-interphalangeal-instability-of-the-hallux
#19
Byung-Ki Cho, Ji-Kang Park, Seung-Myung Choi, Nelson F SooHoo
Chronic varus instability or recurrent subluxation following isolated interphalangeal dislocation of the hallux is a rare injury. No consensus has been reached regarding the best joint-salvage procedure for patients with the failed collateral ligament reconstruction using tendon graft. We report a case who achieved satisfactory clinical outcome through a modified surgical procedure (revision collateral ligament reconstruction augmented with suture-tape).
December 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29201929/evaluation-of-the-sch%C3%A3-ttle-technique-in-the-pediatric-knee
#20
Kellen L Huston, Ugochi C Okoroafor, Scott G Kaar, Christa L Wentt, Paul Saluan, Lutul D Farrow
Background: The Schöttle point is commonly used for anatomic femoral tunnel placement during medial patellofemoral ligament (MPFL) reconstruction. This technique has not been previously validated in the skeletally immature patient, in whom femoral tunnel placement may put the distal femoral physis at risk of iatrogenic injury. Hypothesis: Interobserver reliability for femoral tunnel placement will be higher in adult knees compared with pediatric knees. Study Design: Cross-sectional study (diagnosis); Level of evidence, 3...
November 2017: Orthopaedic Journal of Sports Medicine
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