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Lateral 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/29718873/the-imaging-features-of-the-meniscal-roots-on-isotropic-3d-mri-in-young-asymptomatic-volunteers
#2
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/29704113/repair-of-the-lateral-posterior-meniscal-root-improves-stability-in-an-acl-deficient-knee
#3
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
#4
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/29662913/high-rate-of-missed-lateral-meniscus-posterior-root-tears-on-preoperative-magnetic-resonance-imaging
#5
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/29600679/-diagnostic-value-of-mri-for-posterior-root-tear-of-medial-and-lateral-meniscus
#6
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/29570766/arthroscopic-repair-of-chronic-tears-of-the-anterior-horn-of-the-lateral-meniscus-that-includes-covering-the-lesion-with-an-infrapatellar-pedicle-fat-flap
#7
Zhu Dai, Zhiwei Chen, Ying Liao, Zhengwu Tang, Juncheng Cui, Zhibin Tang
This study analyzed the efficacy and safety of arthroscopic outside-in repair of the anterior horn of the lateral meniscus that includes covering the lesion with an infrapatellar pedicle fat flap in patients with chronic tears. This retrospective study reviewed 87 patients with chronic tears of the anterior horn of the lateral meniscus who underwent arthroscopic outside-in repair, which included covering the lesion with an infrapatellar pedicle fat flap (group A, n=45) or not (group B, n=42). The 2 groups were similar in terms of age, sex, body mass index, and disease duration...
March 23, 2018: Orthopedics
https://www.readbyqxmd.com/read/29552463/bone-trough-lateral-meniscal-allograft-transplantation-the-tapered-teardrop-technique
#8
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
#9
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
#10
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/29514370/contemporary-surgical-trends-in-the-management-of-symptomatic-meniscal-tears-among-united-states-military-servicemembers-from-2010-to-2015
#11
Timothy B Pekari, Kevin C Wang, Eric J Cotter, Nicholas Kusnezov, Brian R Waterman
The purpose of this investigation is to report on trends over time in the treatment of meniscal pathology among military orthopaedic surgeons, as well as to evaluate the impact of patient demographics and concomitant procedure on the type of meniscal procedure performed. We performed a retrospective analysis of all active-duty United States military servicemembers who underwent a meniscal procedure from 2010 to 2015 within the Military Health System. Patient demographics and surgical variables were extracted from the electronic medical record...
March 7, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29502169/the-popliteus-tendon-provides-a-safe-and-reliable-location-for-all-inside-meniscal-repair-device-placement
#12
Hervé Ouanezar, William G Blakeney, Charles Latrobe, Adnan Saithna, Levi Reina Fernandes, Jean Romain Delaloye, Mathieu Thaunat, Bertrand Sonnery-Cottet
PURPOSE: Repairs of the posterior horn of the lateral meniscus can be technically challenging. In contrast to medial meniscus repairs, the capsule around the posterior segment attachment of the lateral meniscus is quite thin. This study evaluates the clinical results of an arthroscopic all-inside repair technique for unstable, vertical, lateral meniscus tears, using a suture repair placed directly into the popliteus tendon. METHODS: A retrospective analysis of prospectively collected data from the SANTI database was performed...
March 3, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29492642/meniscus-repair-with-simultaneous-acl-reconstruction-demonstrated-similar-clinical-outcomes-as-isolated-acl-repair-a-result-not-seen-with-meniscus-resection
#13
Mark Phillips, Erik Rönnblad, Love Lopez-Rengstig, Eleonor Svantesson, Anders Stålman, Kalle Eriksson, Olufemi R Ayeni, Kristian Samuelsson
PURPOSE: To compare Knee Injury and Osteoarthritis Outcome Score (KOOS) and EuroQol-5D (EQ-5D) subscale scores at 2-year follow-up for patients with primary isolated ACL reconstruction with patients undergoing ACL reconstruction and simultaneous meniscal treatment in terms of either resection or repair in the Swedish National Knee Ligament Register (SNKLR). METHODS: All ACL reconstruction patients within the SNKLR at 2-year follow-up were reviewed. The KOOS and EQ-5D subscales were assessed in four distinct patient groups: isolated ACL reconstruction, ACL reconstruction + medial meniscus resection, ACL reconstruction + lateral meniscus resection, ACL reconstruction + medial meniscus repair, and ACL reconstruction + lateral meniscus repair...
February 28, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29430394/both-posterior-root-lateral-medial-meniscus-tears-with-anterior-cruciate-ligament-rupture-the-step-by-step-systematic-arthroscopic-repair-technique
#14
Bancha Chernchujit, Renaldi Prasetia
The occurrence of posterior root tear of both the lateral and medial menisci, combined with anterior cruciate ligament rupture, is rare. Problems may be encountered such as the difficulty to access the medial meniscal root tear, the confusing circumstances about which structure to repair first, and the possibility of the tunnel for each repair to become taut inside the tibial bone. We present the arthroscopy technique step by step to overcome the difficulties in an efficient and time-preserving manner.
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29427724/relation-of-meniscus-pathology-to-prevalence-and-worsening-of-patellofemoral-joint-osteoarthritis-the-multicenter-osteoarthritis-study
#15
H F Hart, K M Crossley, D Felson, M Jarraya, A Guermazi, F Roemer, C E Lewis, J Torner, M Nevitt, J J Stefanik
OBJECTIVE: To determine the relationship of meniscal damage to magnetic resonance imaging (MRI) features of compartment-specific patellofemoral joint (PFJ) osteoarthritis (OA) at baseline and 2 years later. METHOD: Individuals from a prospective cohort of individuals aged 50-79 with or at risk of knee OA were included. At the 60-month and 84-month study visit, Whole-Organ MRI Score (WORMS) was used to assess meniscal tears and extrusions as well as cartilage damage and bone marrow lesions (BMLs) in the medial and lateral patella and trochlea...
February 7, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29419685/the-adaptive-change-of-patellofemoral-joint-after-arthroscopic-discoid-lateral-meniscus-plasty-an-observational-study
#16
Jiangtao Dong, Hongtao Xu, Guorong Jin, Dongmei Xin, Jian Zhang, Kai Kang, Shijun Gao, Baicheng Chen, Yong Shen
The purpose of this study was to investigate the patellofemoral joint adaptive changes after discoid lateral meniscus (DLM) plasty.Forty-one patients with unilateral complete type DLM tears were included in this study. Demographic variables, including gender, age, body mass index (BMI), injury to operation interval, type of injury, and follow-up time, were recorded. The evolution of physical examination, imaging index, and functional score were analyzed by Chi-squared test, Wilcoxon signed ranks test, and Friedman test...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29416975/all-inside-arthroscopic-meniscal-repair-technique-using-a-midbody-accessory-portal
#17
S Tal Hendrix, Adam Kwapisz, Douglas J Wyland
Treatment of symptomatic meniscal tears continues to evolve as we improve our understanding of the biomechanical role of the meniscus and its long-term importance to the health of the knee joint. Suture repair of meniscal tears is challenging, yet the incidence of repairs among our colleagues continues to rise as we aim to preserve meniscal tissue. Many elements of performing a repair are tedious and difficult, including proper meniscal preparation, reduction, mattress suture placement, and fixation. The tear pattern and location present another layer of difficulty...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29416968/suture-repair-of-full-radial-posterior-lateral-meniscus-tears-using-a-central-midline-portal
#18
Hervé Ouanezar, Mathieu Thaunat, Adnan Saithna, Levi Reina Fernandes, Bertrand Sonnery-Cottet
Full radial posterior lateral meniscus root tears are frequently associated with injuries to the anterior cruciate ligament. Left unrepaired, they result in loss of the meniscus hoop stress function and can lead to overload of the lateral compartment and early degenerative changes. Arthroscopic suture repairs show successful results with long-term follow-up. However, previously described suture repair techniques have often required special instrumentation and can be technically demanding. This Technical Note describes the use of an accessory portal through the patellar tendon as a safe and easy method for repairing full posterior radial tears of the lateral meniscus...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29396088/magnetic-resonance-imaging-mri-of-the-knee-identification-of-difficult-to-diagnose-meniscal-lesions
#19
REVIEW
F Lecouvet, T Van Haver, S Acid, V Perlepe, T Kirchgesner, B Vande Berg, P Triqueneaux, M-L Denis, E Thienpont, J Malghem
This article characterizes common meniscal pathologies, reviews magnetic resonance imaging (MRI) diagnostic criteria for meniscal tears, and identifies difficult-to-detect tears and fragments and the best MRI sequences and practices for recognizing these lesions. These difficult-to-diagnose meniscal lesions that radiologists should consider include tears, meniscocapsular separation lesions, and displaced meniscal fragments. Meniscus tears are either vertical, which are generally associated with traumatic injury, horizontal, which are associated with degenerative injury, or combinations of both...
February 2018: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/29392109/clinical-outcome-of-meniscus-repair-for-isolated-meniscus-tear-in-athletes
#20
Hiroshi Nakayama, Ryo Kanto, Shunichiro Kambara, Kenji Kurosaka, Shintaro Onishi, Shinichi Yoshiya, Motoi Yamaguchi
Objective: To examine the clinical and functional outcomes for a series of patients who underwent meniscal repair for isolated meniscal tears focusing the study population on athletes. Methods: This study represents a case series of 46 athletes who underwent repair of isolated meniscal lesions of the knee from 2010 to 2015. Cases of discoid meniscal lesions and combined ligament injuries were excluded. The mean age of the patients was 22.9 years ranging from 12 to 50 years...
October 2017: Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology
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