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Knee ligamentous tears

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https://www.readbyqxmd.com/read/28922423/proprioception-in-patients-with-posterior-cruciate-ligament-tears-a-meta-analysis-comparison-of-reconstructed-and-contralateral-normal-knees
#1
Jung-Ro Yoon, Dae-Hee Lee, Seung-Nam Ko, Young-Soo Shin
Posterior cruciate ligament (PCL) reconstruction for patients with PCL insufficiency has been associated with postoperative improvements in proprioceptive function due to mechanoreceptor regeneration. However, it is unclear whether reconstructed PCL or contralateral normal knees have better proprioceptive function outcomes. This meta-analysis was designed to compare the proprioceptive function of reconstructed PCL or contralateral normal knees in patients with PCL insufficiency. All studies that compared proprioceptive function, as assessed with threshold to detect passive movement (TTDPM) or joint position sense (JPS) in PCL reconstructed or contralateral normal knees were included...
2017: PloS One
https://www.readbyqxmd.com/read/28910987/management-of-combined-injuries-of-the-posterior-cruciate-ligament-and-posterolateral-corner-of-the-knee-a-systematic-review
#2
Stefano Petrillo, Piero Volpi, Rocco Papalia, Nicola Maffulli, Vincenzo Denaro
Background: Approximately 60% of posterior cruciate ligament (PCL) injury are associated with a posterolateral corner (PLC) tear. Sources of data: We performed a systematic review of the literature according to the PRISMA guidelines. The following key words were searched on Medline, Cochrane, EMBASE, Google Scholar, and Ovid: 'posterior cruciate ligament' or 'PCL' with 'posterolateral corner' or 'PLC' and 'chronic'; 'injury'; 'management'; 'reconstruction'; 'outcomes'; 'complications'...
September 1, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/28900563/cadaveric-evaluation-of-the-lateral-anterior-drawer-test-for-examining-posterior-cruciate-ligament-integrity
#3
Gesine H Seeber, Marc P Wilhelm, Gunther Windisch, Hans-Joachim Appell Coriolano, Omer C Matthijs, Philip S Sizer
BACKGROUND: Common clinical tests often fail to identify posterior cruciate ligament (PCL) ruptures, leading to undetected tears and potential degenerative changes in the knee. The lateral-anterior drawer (LAD) test has been proposed but not yet evaluated regarding its effectiveness for diagnosing PCL-ruptures. HYPOTHESIS: The LAD will show greater tibial translation values in lateral-anterior direction in a PCL-Cut condition compared to a PCL-Intact condition, thus serving as a useful test for clinical diagnosis of PCL integrity...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28894756/relationships-between-tibiofemoral-contact-forces-and-cartilage-morphology-at-2-to-3-years-after-single-bundle-hamstring-anterior-cruciate-ligament-reconstruction-and-in-healthy-knees
#4
David John Saxby, Adam L Bryant, Xinyang Wang, Luca Modenese, Pauline Gerus, Jason M Konrath, Kim L Bennell, Karine Fortin, Tim Wrigley, Flavia M Cicuttini, Christopher J Vertullo, Julian A Feller, Tim Whitehead, Price Gallie, David G Lloyd
BACKGROUND: Prevention of knee osteoarthritis (OA) following anterior cruciate ligament (ACL) rupture and reconstruction is vital. Risk of postreconstruction knee OA is markedly increased by concurrent meniscal injury. It is unclear whether reconstruction results in normal relationships between tibiofemoral contact forces and cartilage morphology and whether meniscal injury modulates these relationships. HYPOTHESES: Since patients with isolated reconstructions (ie, without meniscal injury) are at lower risk for knee OA, we predicted that relationships between tibiofemoral contact forces and cartilage morphology would be similar to those of normal, healthy knees 2 to 3 years postreconstruction...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28888902/a-small-molecule-inhibitor-of-the-wnt-pathway-sm04690-as-a-potential-disease-modifying-agent-for-the-treatment-of-osteoarthritis-of-the-knee
#5
Vishal Deshmukh, Haide Hu, Charlene Barroga, Carine Bossard, Sunil Kc, Luis Dellamary, Joshua Stewart, Kevin Chiu, Maureen Ibanez, Melinda Pedraza, Tim Seo, Long Do, Shawn Cho, Joseph Cahiwat, Betty Tam, Jeyanesh R S Tambiah, John Hood, Nancy E Lane, Yusuf Yazici
OBJECTIVES: Osteoarthritis (OA) is a degenerative disease characterized by loss of cartilage and increased subchondral bone within synovial joints. Wnt signaling affects the pathogenesis of OA as this pathway modulates both the differentiation of osteoblasts and chondrocytes, and production of catabolic proteases. A novel small molecule Wnt pathway inhibitor, SM04690, was evaluated in a series of in vitro and in vivo animal studies to determine its effects on chondrogenesis, cartilage protection and synovial-lined joint pathology...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28888741/magnetic-resonance-signal-abnormalities-within-the-pericruciate-fat-pad-a-possible-secondary-sign-for-acute-anterior-cruciate-ligament-tears
#6
Ferdinando Draghi, Mario Torresi, Luigi Urciuoli, Salvatore Gitto
PURPOSE: The study sought to investigate the presence of magnetic resonance (MR) signal alterations within the pericruciate fat pad in patients with an acute anterior cruciate ligament (ACL) tear as well as evaluate its diagnostic value in comparison with the main secondary signs of ACL tears. METHODS: Two musculoskeletal radiologists retrospectively reviewed knee MR examinations performed from May to October 2015. The ACL was considered as torn or intact based on either previous arthroscopic findings or unequivocal MR imaging interpretation if arthroscopic correlation was unavailable...
September 6, 2017: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/28878515/review-medial-collateral-ligament-injuries
#7
REVIEW
Kyle Andrews, Alex Lu, Lucas Mckean, Nabil Ebraheim
The medial collateral ligament (MCL) is a major stabilizer of the knee joint. It is the most common ligament injured in the knee, particularly in athletes, and has been reported to be torn in 7.9% of all knee injuries.(2) The MCL has a complex, layered anatomy with multiple insertions and functions. Minor trauma can cause tearing of the superficial portion whereas higher energy mechanisms can disrupt both the deep and superficial layers. History and physical are often adequate, but the gold standard for diagnosis is MRI...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28858544/evaluation-of-selective-bundle-injury-to-the-anterior-cruciate-ligament-t2-weighted-fast-spin-echo-3-t-mri-with-reformatted-3d-oblique-isotropic-vista-versus-2d-technique
#8
Jung Eun Lee, Hee Jin Park, So Yeon Lee, Jin Hwan Ahn, Jai Hyung Park, Ji Yeon Park
OBJECTIVE: The purpose of this study was to compare the diagnostic utility of oblique sagittal and oblique coronal 3D volume isotropic turbo spin-echo acquisition (VISTA) images with that of 2D fast spin-echo (FSE) T2-weighted images in the diagnosis of selective bundle tears of the anterior cruciate ligament (ACL). MATERIALS AND METHODS: This retrospective study included 56 patients who underwent 2D FSE and 3D VISTA 3-T MRI of the knee before arthroscopic procedures...
August 31, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28846442/the-incidence-of-subsequent-meniscal-surgery-is-higher-in-the-anterior-cruciate-ligament-reconstructed-knee-than-in-the-contralateral-knee
#9
Brent R Davis, Jason Chen, Maria C S Inacio, Rebecca Love, Heather A Prentice, Gregory B Maletis
BACKGROUND: A goal of anterior cruciate ligament (ACL) reconstruction is to provide a meniscal protective effect for the knee. PURPOSE: (1) To evaluate whether there was a different likelihood of subsequent meniscal surgery in the ACL-reconstructed knee or in the normal contralateral knee and (2) to compare the risk factors associated with subsequent meniscal surgery in the ACL-reconstructed knee and contralateral knee. STUDY DESIGN: Cohort study; Level of evidence, 3...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28840155/incidence-of-second-anterior-cruciate-ligament-tears-and-identification-of-associated-risk-factors-from-2001-to-2010-using-a-geographic-database
#10
Nathan D Schilaty, Christopher Nagelli, Nathaniel A Bates, Thomas L Sanders, Aaron J Krych, Michael J Stuart, Timothy E Hewett
BACKGROUND: The reported rate of second anterior cruciate ligament (ACL) injuries (20%-30%), including graft failure and contralateral ACL tears, after ACL reconstruction (ACLR) or nonoperative therapy indicates that multiple factors may predispose patients to subsequent ACL injuries. PURPOSE: To determine the incidence of second ACL injuries in a population-based cohort over a 10-year observation period (2001-2010) and to identify factors that contribute to the risk of second injuries...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28831524/-meniscal-root-lesions-clinical-relevance-and-treatment
#11
REVIEW
S Kopf, C Stärke, R Becker
Meniscal roots play an important role in load distribution of the tibiofemoral knee joint. Thus, meniscal root tears are severe injuries of the knee, which significantly expose cartilage to increased stress. Two entities are distinguished: (i) acute root tears that mainly affect the posterolateral root and often occur with ruptures of the anterior cruciate ligament; and (ii) chronic, degenerative root tears that mainly affect the posteromedial root. For diagnosis of both entities, the patient's medical history, a knee examination and especially MRI play key roles...
August 22, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28828058/arthroscopic-knee-anatomy-in-young-achondroplasia-patients
#12
M Del Pilar Duque Orozco, N C Record, K J Rogers, M B Bober, W G Mackenzie, A Atanda
PURPOSE: Achondroplasia is the most common form of skeletal dysplasia, affecting more than 250 000 individuals worldwide. In these patients, the developing knee undergoes multiple anatomical changes. The purpose of this study was to characterise the intra-articular knee anatomy in children with achondroplasia who underwent knee arthroscopy. METHODS: Records of achondroplasia patients who underwent knee arthroscopy between 2009 and 2014 were reviewed. Demographic data, operative reports, follow-up notes, MRI and arthroscopy images were reviewed...
June 1, 2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28822094/quantitative-knee-cartilage-measurement-at-mr-imaging-of-patients-with-anterior-cruciate-ligament-tear
#13
Kazuki Kato, Tamotsu Kamishima, Eiji Kondo, Tomohiro Onodera, Shota Ichikawa
In previous studies, numerous approaches were proposed that assess knee cartilage volume quantitatively using 3D magnetic resonance (MR) imaging. However, the clinical use of these approaches is limited because 3D MR is prone to metal artifacts in postoperative cases. Our purpose in this study was to validate a method for knee cartilage volume quantification using conventional MR imaging in patients who underwent anterior cruciate ligament (ACL) reconstruction surgery. The study included 16 patients who underwent MR imaging before and 1 year after ACL reconstruction surgery...
August 18, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28812037/a-retrospective-analysis-of-concurrent-pathology-in-acl-reconstructed-knees-of-elite-alpine-ski-racers
#14
Matthew J Jordan, Patricia Doyle-Baker, Mark Heard, Per Aagaard, Walter Herzog
BACKGROUND: Anterior cruciate ligament (ACL) tear is the most frequent injury in alpine ski racing, and there is a high prevalence of ACL reinjury. Limited data exist on the concurrent pathology with primary ACL tears in elite alpine ski racers and the magnitude of injury progression after primary ACL reconstruction (ACLR). PURPOSE: To evaluate (1) the involvement of intra-articular and multiligament pathologies at the time of primary ACLR, (2) the subsequent progression in meniscal/chondral injuries, and (3) the occurrence of ACL reinjury in elite alpine ski racers...
July 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28810991/posterior-cruciate-ligament-injuries-associated-with-military-survival-swim-training
#15
Michael S Crowell, John S Mason, Matthew A Posner, Chad A Haley
OBJECTIVES: Posterior cruciate ligament (PCL) injuries are relatively common injuries associated with athletic activities and high-energy trauma. Posterolateral corner (PLC) injuries frequently accompany injury to the PCL. Diagnosis can be challenging and requires a comprehensive history and physical examination. Patients frequently report vague, nonspecific symptoms and the mechanism of injury is often useful in localizing injured structures. Two of the more common mechanisms for PCL injury include a direct blow to the proximal anterior tibia with the knee flexed, as well as a significant knee hyperextension injury...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28809636/-arthroscopic-finding-of-knee-joint-in-relation-to-age-and-its-comparison-with-pre-operative-clinical-finding-a-retrospective-study
#16
P Látal, K Šimeček, M Kloub
PURPOSE OF THE STUDY In the retrospective study of two South Bohemian centres we present the comparison of pre-operative anamnestic clinical signs in relation to the arthroscopic intraoperative finding. The obtained data is used also to evaluate the arthroscopic finding in relation to age and sex. MATERIAL AND METHODS The arthroscopic findings of patients who underwent surgery in 2013-2014 period (1.1.2013-31.12.2014) at the Department of Trauma Surgery of České Budějovice Hospital, a.s. and in 2014 (1.1...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28806096/results-of-anterior-cruciate-ligament-reconstruction-with-patellar-tendon-autografts-objective-factors-associated-with-the-development-of-osteoarthritis-at-20-to-33-years-after-surgery
#17
K Donald Shelbourne, Rodney W Benner, Tinker Gray
BACKGROUND: Few studies exist that report objective radiographic and physical examination results at >20 years after anterior cruciate ligament (ACL) reconstruction. HYPOTHESIS: The risk of osteoarthritis (OA) at >20 years after surgery would be statistically significantly higher if an increased severity of factors was present. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: Between 1982 and 1994, 1428 knees met the inclusion criteria of being primary ACL surgery, having no existing OA or other ligamentous laxity, and having no known graft tear...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28777283/the-locations-of-anterior-cruciate-ligament-tears-in-pediatric-and-adolescent-patients-a-magnetic-resonance-study
#18
Jelle P van der List, Douglas N Mintz, Gregory S DiFelice
BACKGROUND: Recently, a resurgence of interest has been noted in anterior cruciate ligament (ACL) preservation in pediatric and adolescent patients. Different tear types, defined by their tear location, require different preservation techniques: proximal and distal avulsion tears can be treated with arthroscopic primary repair, whereas primary repair with biological scaffold has been proposed for midsubstance tears. The goal of this study was to assess the distribution of different tear types in pediatric and adolescent patients, as these are currently unknown...
August 2, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28768432/effects-of-surgical-factors-on-cartilage-can-be-detected-using-quantitative-magnetic-resonance-imaging-after-anterior-cruciate-ligament-reconstruction
#19
Keiko Amano, Alan K Li, Valentina Pedoia, Matthew F Koff, Aaron J Krych, Thomas M Link, Hollis Potter, Scott Rodeo, Xiaojuan Li, C Benjamin Ma, Sharmila Majumdar
BACKGROUND: Quantitative magnetic resonance (qMR) can be used to measure macromolecules in tissues and is a potential method of observing early cartilage changes in the development of posttraumatic osteoarthritis. Hypothesis/Purpose: We hypothesized that specific patient and surgical factors affecting cartilage matrix composition after anterior cruciate ligament (ACL) reconstruction (ACLR) can be detected using T1ρ and T2 relaxation times. Our purpose was to demonstrate this ability in a multicenter feasibility study...
April 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28759729/the-effects-of-injury-prevention-programs-on-the-biomechanics-of-landing-tasks-a-systematic-review-with-meta-analysis
#20
Thiago Jambo Alves Lopes, Milena Simic, Gregory D Myer, Kevin R Ford, Timothy E Hewett, Evangelos Pappas
BACKGROUND: Anterior cruciate ligament (ACL) tear is a common injury in sports and often occurs during landing from a jump. PURPOSE: To synthesize the evidence on the effects of injury prevention programs (IPPs) on landing biomechanics as they relate to the ligament, quadriceps, trunk, and leg dominance theories associated with ACL injury risk. STUDY DESIGN: Meta-analysis. METHODS: Six electronic databases were searched for studies that investigated the effect of IPPs on landing task biomechanics...
July 1, 2017: American Journal of Sports Medicine
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