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Knee meniscus tear

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https://www.readbyqxmd.com/read/29754495/evaluation-of-anterior-intermeniscal-ligament-in-discoid-lateral-meniscus-cases-and-presenting-the-accompanying-meniscal-pathologies-with-mri
#1
Ali Koç, Turgut Tursem Tokmak, Özgür Karabıyık, Gamze Türk
Background Although several studies were conducted to put forth the biomechanical function of anterior intermeniscal ligament (AIML) on the stability of meniscal structures, there are few data on the etiology of the early degeneration of discoid type compared to the normal shaped ones. Purpose To determine the AIML subtypes and accompanying meniscal pathologies in discoid lateral menisci (DLM) on knee MRI exams. Material and Methods Knee MRI exams of 171 individuals with DLM were reviewed. DLMs and AIMLs were typed according to Watanabe's classification and Nelson-Laprade classification, respectively...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29726627/relationship-between-patient-reported-swelling-and-mri-defined-effusion-synovitis-in-patients-with-meniscus-tears-and-knee-osteoarthritis
#2
Lindsey A MacFarlane, Heidi Yang, Jamie E Collins, Ali Guermazi, Lisa A Mandl, Brue A Levy, Robert G Marx, Clare E Safran-Norton, Elena Losina, Jeffrey N Katz
OBJECTIVE: Synovitis is a prevalent feature in patients with knee osteoarthritis (OA) and meniscal tear and is associated with pain and cartilage damage. Patient-reported swelling is also prevalent in this population. We aimed to investigate the cross-sectional association between patient-reported swelling and effusion-synovitis on magnetic resonance imaging (MRI) in patients with OA and meniscal tear. METHODS: We used baseline data from a multicenter randomized controlled trial, Meniscal Tear in Osteoarthritis Research (MeTeOR)...
May 4, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29718873/the-imaging-features-of-the-meniscal-roots-on-isotropic-3d-mri-in-young-asymptomatic-volunteers
#3
Ping Wang, Cheng-Zhou Zhang, Di Zhang, Quan-Yuan Liu, Xiao-Fei Zhong, Zhi-Jie Yin, Bin Wang
BACKGROUND: This study aimed to describe clearly the normal imaging features of the meniscal roots on the magnetic resonance imaging (MRI) with a 3-dimensional (3D) proton density-weighted (PDW) sequence at 3T. METHODS: A total of 60 knees of 31 young asymptomatic volunteers were examined using a 3D MRI. The insertion patterns, constitution patterns, and MR signals of the meniscal roots were recorded. RESULTS: The anterior root of the medial meniscus (ARMM), the anterior root of the lateral meniscus (ARLM), and the posterior root of the medial meniscus (PRMM) had 1 insertion site, whereas the posterior root of the lateral meniscus (PRLM) can be divided into major and minor insertion sites...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29713647/a-prospective-randomized-double-blind-parallel-group-placebo-controlled-study-evaluating-meniscal-healing-clinical-outcomes-and-safety-in-patients-undergoing-meniscal-repair-of-unstable-complete-vertical-meniscal-tears-bucket-handle-augmented-with-platelet
#4
Rafal Kaminski, Krzysztof Kulinski, Katarzyna Kozar-Kaminska, Monika Wielgus, Maciej Langner, Marcin K Wasko, Jacek Kowalczewski, Stanislaw Pomianowski
Objective: The present study aimed to investigate the effectiveness and safety of platelet-rich plasma (PRP) application in arthroscopic repair of complete vertical tear of meniscus located in the red-white zone. Methods: This single center, prospective, randomized, double-blind, placebo-controlled, parallel-arm study included 37 patients with complete vertical meniscus tears. Patients received an intrarepair site injection of either PRP or sterile 0.9% saline during an index arthroscopy...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29704113/repair-of-the-lateral-posterior-meniscal-root-improves-stability-in-an-acl-deficient-knee
#5
Philipp Forkel, Constantin von Deimling, Lucca Lacheta, Florian B Imhoff, Peter Foehr, Lukas Willinger, Felix Dyrna, Wolf Petersen, Andreas B Imhoff, Rainer Burgkart
PURPOSE: To investigate the stabilizing effect of a lateral meniscus posterior root repair in an ACL and root deficient knee. METHODS: The hypothesis of the current study was that a sequential transection of the posterior root and the meniscofemoral ligaments in an ACL-deficient knee increases rotational instability, and conversely, a repair of the meniscus root reduces the internal tibial rotation. Therefore, eight human knee joints were tested in a robotic setup (5 N m internal torque, 50 N m anterior translation load)...
April 27, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29685524/medial-meniscal-extrusion-detection-evaluation-and-clinical-implications
#6
REVIEW
Nayanatara Swamy, Vibhor Wadhwa, Gitanjali Bajaj, Avneesh Chhabra, Tarun Pandey
The menisci play an important role in knee kinematics. Their unique anatomy allows them to channel forces generated during knee movements through the larger tibio-femoral condylar surfaces while simultaneously resisting deleterious hoop stresses. Although physiologic meniscal extrusion occurs with every knee joint movement, pathologic meniscal extrusion subjects the knee to persistent and excessive load transmission. This renders the knee structures susceptible to injury or exacerbates worsening of existing knee joint internal derangement...
May 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29668032/presence-of-meniscus-tear-alters-gene-expression-profile-of-anterior-cruciate-ligament-tears
#7
Robert H Brophy, Marcus A Rothermich, Eric D Tycksen, Lei Cai, Muhammad Farooq Rai
Anterior cruciate ligament (ACL) tears occur in isolation or in tandem with other intra-articular injuries such as meniscus tears. The impact of injury pattern on the molecular biology of the injured ACL is unknown. Here, we tested the hypothesis that the biological response of the ACL to injury varies based on the presence or absence of concomitant meniscus tear. We performed RNA-seq on 28 ACL tears remnants (12 isolated, 16 combined). In total, 16,654 transcripts were differentially-expressed between isolated and combined injury groups at false-discovery-rate of 0...
April 18, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29663192/human-knee-meniscus-regeneration-strategies-a-review-on-recent-advances
#8
REVIEW
Mamatha M Pillai, J Gopinathan, R Selvakumar, Amitava Bhattacharyya
PURPOSE OF REVIEW: Lack of vascularity in the human knee meniscus often leads to surgical removal (total or partial meniscectomy) in the case of severe meniscal damage. However, complete recovery is in question after such removal as the meniscus plays an important role in knee stability. Thus, meniscus tissue regeneration strategies are of intense research interest in recent years. RECENT FINDINGS: The structural complexity and inhomogeneity of the meniscus have been addressed with processing technologies for precisely controlled three dimensional (3D) complex porous scaffold architectures, the use of biomolecules and nanomaterials...
April 16, 2018: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/29662913/high-rate-of-missed-lateral-meniscus-posterior-root-tears-on-preoperative-magnetic-resonance-imaging
#9
Aaron J Krych, Isabella T Wu, Vishal S Desai, Naveen S Murthy, Mark S Collins, Daniel B F Saris, Bruce A Levy, Michael J Stuart
Background: Lateral meniscus posterior root tears (LMPRTs), if left untreated, can cause devastating effects to the knee, with rapid articular cartilage degeneration and loss of the meniscus as a secondary stabilizer. Detection and surgical repair of these defects have been linked to favorable outcomes, but preoperative identification of LMPRTs continues to be challenging. Purpose: To determine the rate of LMPRTs diagnosed preoperatively on magnetic resonance imaging (MRI) in a consecutive series of arthroscopically confirmed LMPRTs...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29653240/medial-meniscus-posterior-root-tear-induces-pathological-posterior-extrusion-of-the-meniscus-in-the-knee-flexed-position-an-open-magnetic-resonance-imaging-analysis
#10
S Masuda, T Furumatsu, Y Okazaki, Y Kodama, T Hino, Y Kamatsuki, S Miyazawa, T Ozaki
BACKGROUND: A medial meniscus posterior root tear (MMPRT) is defined as an injury to the posterior meniscal insertion on the tibia. In MMPRT, the medial meniscus (MM) hoop function is damaged, and the MM undergoes a medial extrusion into the interior from the superior articular surface of the tibia. However, the details of MM position and movement during knee joint movement are unclear in MMPRT cases. The present study aims to evaluate MM position and movement via magnetic resonance imaging (MRI) examination of the MM posterior extrusion (MMPE) at knee flexion angles of 10° and 90°...
April 10, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29648924/operative-treatment-of-isolated-meniscus-injuries-in-adolescent-patients-a-meta-analysis-and-review
#11
Gina M Mosich, Virginia Lieu, Edward Ebramzadeh, Jennifer J Beck
CONTEXT: With the rise in sports participation and increased athleticism in the adolescent population, there is an ever-growing need to better understand adolescent meniscus pathology and treatment. OBJECTIVE: To better understand the operative management of meniscus tears in the adolescent population. DATA SOURCES: A systematic review of PubMed (MEDLINE) and Google Scholar was performed for all archived years. STUDY SELECTION: Studies that reported on isolated meniscus tears in adolescent patients (age, 10-19 years) were included...
April 1, 2018: Sports Health
https://www.readbyqxmd.com/read/29622245/editorial-commentary-we-know-we-need-to-fix-knee-meniscal-radial-root-tears-but-how-best-to-perform-the-repairs
#12
EDITORIAL
Robert F LaPrade
The present work further contributes to building the base of the research pyramid by noting the importance of repairing knee meniscal radial root tears. Because of the extensive biomechanical studies that have now been published on the restoration of joint mechanics and with what I believe results in a higher likelihood of an improved healing environment with securing the meniscus root tear down to bone, I would strongly recommend that when one does see a meniscus root tear that the transtibial pullout root repair technique be considered over a side-to-side repair...
April 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29600679/-diagnostic-value-of-mri-for-posterior-root-tear-of-medial-and-lateral-meniscus
#13
Yue-Nan Qian, Fang Liu, Yi-Long Dong, Chun-Yuan Cai
OBJECTIVE: To explore diagnostic value of MRI on posterior root tear of medial and lateral meniscus. METHODS: From January 2012 to January 2016, clinical data of 43 patients with meniscal posterior root tear confirmed by arthroscopy were retrospective analyzed, including 25 males and 18 females, aged from 27 to 69 years old with an average age of(42.5±8.3)years old;27 cases on the right side and 16 cases on the left side. MRI examinations of 43 patients with tear of posterior meniscus root confirmed by knee arthroscopies were retrospectively reviewed...
March 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29600217/double-posterior-cruciate-ligament-sign-on-magnetic-resonance-imaging-imaging-variants-mimics-and-clinical-implications
#14
Raju Vaishya, Vipul Vijay, Abhishek Vaish, Amit K Agarwal, Nitin P Ghonge
Introduction: Double posterior cruciate ligament (PCL) sign is a sign on magnetic resonance imaging (MRI) which is suggestive of a bucket- handle tear (BHT) of the meniscus. We undertook this study to assess the presence of a double PCL sign and its correlation with arthroscopic findings. We also discussed the various mimics and variants of the double PCL sign. Case Report: All the patients with a double PCL sign on the MRI and who underwent knee arthroscopy between January 2012 and December 2016 (total of 5 cases, 4 males and one female) were included in the study...
November 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29552463/bone-trough-lateral-meniscal-allograft-transplantation-the-tapered-teardrop-technique
#15
Michael A Zacchilli, Amos Z Dai, Eric J Strauss, Laith M Jazrawi, Robert J Meislin
The meniscus plays a vital role in knee biomechanics, and its physical absence or functional incompetence (e.g., irreparable root or radial tear) leads to unacceptably high rates of joint degeneration in affected populations. Meniscal allograft transplantation has been used successfully to treat patients with postmeniscectomy syndrome, and there is early laboratory and radiographic evidence hinting at a potential prophylactic role in preventing joint degeneration. We present a technique for lateral meniscal allograft transplantation using the CONMED Meniscal Allograft Transplantation system...
December 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29536687/-analysis-of-the-characteristics-and-clinical-diagnosis-and-treatment-of-avulsion-fracture-of-the-lateral-edge-of-tibial-plateau
#16
Jia-Ping Pan, Xu-Can Wang, Ming-Hong Huang
OBJECTIVE: To investigate the characteristics and clinical treatment of avulsion fracture of the lateral edge of tibial plateau(segond fracture) in knee joint injuries. METHODS: From January 2011 and December 2015, 29 patients with Segond fracture were treated with minimally invasive arthroscopy technology in intra-articular injuries combined with double anchor nail fixation in avulsion fracture of the lateral edge of tibial plateau, including 17 males and 12 females with an average age of 41 years old ranging from 27 to 62 years old...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29525549/comparative-postural-stability-in-patients-with-lateral-meniscus-versus-medial-meniscus-tears
#17
Jin-Hyuck Lee, Jae-Won Heo, Dae-Hee Lee
BACKGROUND: Types of mechanoreceptors may differ between the medial and lateral menisci, suggesting that postural stability may differ between patients with medial and lateral meniscus tears. However, to date, postural stability has not been compared in patients with medial and lateral meniscus tears. This study used stabilometry to compare postural stability in patients with medial and lateral meniscus tears. METHODS: Postural stability and thigh muscle strength were assessed in 24 patients with medial and 18 patients with lateral meniscus tears...
March 2018: Knee
https://www.readbyqxmd.com/read/29521888/assessment-of-low-grade-meniscal-and-cartilage-damage-of-the-knee-at-7-t-a-comparison-to-3-t-imaging-with-arthroscopic-correlation
#18
Björn Friebe, Martin Richter, Susanne Penzlin, Christian Stärke, Siegfried Kropf, Christoph Lohmann, Frank Fischbach, Oliver Speck
OBJECTIVES: The aim of this study was to compare the assessment of low-grade meniscal tears and cartilage damage in ultrahigh-field magnetic resonance imaging (MRI) at 7 T to routine clinical MRI at 3 T. MATERIALS AND METHODS: This study was approved by the local ethics committee, and written informed consent was obtained from each patient. Forty-one patients with suspected meniscal damage or mild osteoarthritis (Kellgren-Lawrence score, 0-2) received 7 T as well as routine clinical 3 T consecutively...
March 8, 2018: Investigative Radiology
https://www.readbyqxmd.com/read/29520189/clinical-feasibility-of-synthetic-magnetic-resonance-imaging-in-the-diagnosis-of-internal-derangements-of-the-knee
#19
Jisook Yi, Young Han Lee, Ho-Taek Song, Jin-Suck Suh
Objective: To evaluate the feasibility of synthetic magnetic resonance imaging (MRI) compared to conventional MRI for the diagnosis of internal derangements of the knee at 3T. Materials and Methods: Following Institutional Review Board approval, image sets of conventional and synthetic MRI in 39 patients were included. Two musculoskeletal radiologists compared the image sets and qualitatively analyzed the images. Subjective image quality was assessed using a four-grade scale...
March 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/29517925/meniscus-root-repair-vs-meniscectomy-or-nonoperative-management-to-prevent-knee-osteoarthritis-after-medial-meniscus-root-tears-clinical-and-economic-effectiveness
#20
Scott C Faucett, Benjamin Peter Geisler, Jorge Chahla, Aaron J Krych, Peter R Kurzweil, Abigail M Garner, Shan Liu, Robert F LaPrade, Jan B Pietzsch
BACKGROUND: Medial meniscus root tears are a common knee injury and can lead to accelerated osteoarthritis, which might ultimately result in a total knee replacement. PURPOSE: To compare meniscus repair, meniscectomy, and nonoperative treatment approaches among middle-aged patients in terms of osteoarthritis development, total knee replacement rates (clinical effectiveness), and cost-effectiveness. STUDY DESIGN: Meta-analysis and cost-effectiveness analysis...
March 1, 2018: American Journal of Sports Medicine
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