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Meniscal morphology

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https://www.readbyqxmd.com/read/30108012/characteristic-morphology-of-the-proximal-tibiofibular-joint-in-patients-with-discoid-lateral-meniscus
#1
Norifumi Suga, Tomoyuki Nakasa, Masakazu Ishikawa, Atsuo Nakamae, Seiju Hayashi, Masahiro Yoshikawa, Yoshikazu Sumida, Yusuke Tsuyuguchi, Nobuo Adachi
BACKGROUND: Patients with discoid lateral meniscus (DLM) are prone to meniscal injuries related to its shape and abnormal mobility. The anatomical joint inclination of the proximal tibiofibular joint (PTFJ) can also affect joint movement in knee motion. However, an association between PTFJ morphology and DLM remains unclear. The purpose of this study was to investigate the morphology of the PTFJ on MRI and how this differs between patients with and without DLM. MATERIALS AND METHODS: Fifty-eight patients with DLM and 58 age-matched controls (normal meniscus) were included in this study...
August 11, 2018: Knee
https://www.readbyqxmd.com/read/30102447/delayed-gadolinium-enhanced-mri-of-menisci-and-cartilage-dgemrim-dgemric-in-obese-patients-with-knee-osteoarthritis-cross-sectional-study-of-85-obese-patients-with-intra-articular-administered-gadolinium-contrast
#2
Stine Hangaard, Henrik Gudbergsen, Cecilie L Daugaard, Henning Bliddal, Janus Damm Nybing, Miika T Nieminen, Victor Casula, Carl-Johan Tiderius, Mikael Boesen
BACKGROUND: Early cartilage changes in knee osteoarthritis (OA) can be assessed by both intravenous (i.v.) and intra-articular (i.a.) delayed gadolinium-enhanced MRI of cartilage (dGEMRIC). PURPOSE: To examine the relationship between i.a. dGEMRIC and delayed gadolinium-enhanced MRI of menisci (dGEMRIM), and to investigate if the approach can be used to assess the morphological degeneration of menisci in obese patients with knee OA. STUDY TYPE: Cross-sectional...
August 13, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/30079757/modeling-and-staging-of-osteoarthritis-progression-using-serial-ct-imaging-and-arthroscopy
#3
Candace Flynn, Mark Hurtig, Emma Lamoure, Erin Cummins, Valeria Roati, Mark Lowerison, Sang Young Jeong, Wonil Oh, Alex Zur Linden
Objective The objective of this study was to describe in life methods by which osteoarthritis can be staged in order to time therapeutic interventions that are relevant to osteoarthritis (OA) clinical trials Methods Twenty-two sheep underwent arthroscopic meniscal destabilization to induce OA. Serial computed tomography (CT) imaging and arthroscopy were used to monitor osteoarthritis progression at 3-month intervals over 9 months. Eleven sheep received 1 intra-articular injection of hyaluronate 3 months after OA induction and another group of 11 received saline...
August 6, 2018: Cartilage
https://www.readbyqxmd.com/read/30074063/the-medial-open-wegde-osteotomy-generates-progressive-intrameniscal-integrity-changes-in-the-lateral-knee-compartment-a-prospective-mr-assessment-after-valgic-osteotomy-in-the-varus-gonarthritic-knee
#4
F Bick, Y Iffland, E Zimmermann, F Welsch, R Hoffmann, Thomas Stein
PURPOSE: Meniscal changes in the lateral knee compartment after medial-opening high tibial osteotomy (HTO) with valgic overcorrection have not been investigated clinically with magnetic resonance imaging (MRI). The hypothesis of this study was that HTO with valgic overcorrection affects the lateral compartment due to the change in the bearing axis and the shift in the pressure load from the medial to the lateral compartment. This should lead to an accelerated degeneration of the lateral compartment...
August 3, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/30055602/efficacy-of-intra-articular-injections-of-platelet-rich-plasma-as-a-symptom-and-disease-modifying-treatment-for-knee-osteoarthritis-the-restore-trial-protocol
#5
Kade L Paterson, David J Hunter, Ben R Metcalf, Jillian Eyles, Vicky Duong, Jessica Kazsa, Yuanyuan Wang, Rachelle Buchbinder, Flavia Cicuttini, Andrew Forbes, Anthony Harris, Shirley P Yu, Bing Hui Wang, David Connell, James Linklater, Kim L Bennell
BACKGROUND: Knee osteoarthritis (OA) causes substantial pain, physical dysfunction and impaired quality of life. There is no cure for knee OA, and for some people, the disease may involve progressive symptomatic and structural deterioration over time. Platelet-rich plasma (PRP) is a therapeutic agent that aims to address underlying biological processes responsible for OA pathogenesis. As such, it has the potential to improve both symptoms and joint structure. The aim of this clinical trial is to determine whether a series of injections of PRP into the knee joint will lead to a significantly greater reduction in knee pain, and less loss of medial tibial cartilage volume over 12 months when compared to a series of placebo saline injections in people with knee OA...
July 28, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/30036288/the-sensitivity-and-specificity-of-preoperative-history-physical-examination-and-magnetic-resonance-imaging-to-predict-articular-cartilage-injuries-in-symptomatic-discoid-lateral-meniscus
#6
Brian C Lau, Toure Vashon, Abhinav Janghala, Nirav K Pandya
BACKGROUND: Discoid lateral meniscus (DLM) is a morphologic variant in which concomitant articular cartilage defects lead to poor outcomes. The purpose of this study was to quantify the prognostic ability of history, physical examination, and magnetic resonance imaging (MRI) to identify arthroscopically confirmed articular cartilage injury in pediatric and adolescent DLM patients. METHODS: An analysis of 34 consecutive patients (mean, 12.5 y) who underwent surgical treatment for DLM...
July 20, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/30030866/mri-ute-t2-shows-high-incidence-of-cartilage-subsurface-matrix-changes-2-years-after-acl-reconstruction
#7
Ashley A Williams, Matthew R Titchenal, Bao H Do, Aditi Guha, Constance R Chu
Alteration of deep cartilage matrix has been observed following anterior cruciate ligament (ACL) injury, evidenced by elevated MRI UTE-T2* values measured in small, 2-D cartilage regions of interest. This Level I diagnostic study seeks to more thoroughly evaluate deep cartilage matrix changes to medial tibiofemoral UTE-T2* maps 2 years after ACL reconstruction and examine the relative utilities of 3-D compared to 2-D assessments of cartilage UTE-T2* maps. Thirty-eight ACL-reconstructed and 20 uninjured subjects underwent MRI UTE-T2* mapping...
July 20, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29937131/intercondylar-and-central-regions-of-complete-discoid-lateral-meniscus-have-different-cell-and-matrix-organizations
#8
Takayuki Furumatsu, Ami Maehara, Yuki Okazaki, Toshifumi Ozaki
BACKGROUND: A complete discoid lateral meniscus (DLM) has a high risk of horizontal tear. However, cellular phenotypes and extracellular matrix organizations in complete DLMs are still unclear. The aim of this study was to investigate histological and cellular biological characteristics in both the intercondylar and central regions of complete DLM. MATERIALS AND METHODS: Meniscal samples were obtained from the intercondylar and central regions of complete DLM (n = 6)...
June 21, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29910017/mri-analysis-of-extra-capsular-ganglia-at-the-gastrocnemius-origin-and-their-association-with-osteoarthritis
#9
C Park, J M Ahn, H Kim, Y Kang, E Lee, J W Lee, H S Kang
AIM: To evaluate the prevalence, clinical relevance, and magnetic resonance imaging (MRI) features of extra-capsular ganglia at the gastrocnemius origin and to assess their association with internal derangement and osteoarthritis of the knee. MATERIALS AND METHODS: One hundred consecutive knee MRI examinations, obtained within a 6-month period from patients with no history of recent knee trauma, recent injections, inflammatory arthritis, infection, or tumours, were evaluated retrospectively for the presence of ganglia at the gastrocnemius origin...
September 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29802973/associations-between-molecular-biomarkers-and-mr-based-cartilage-composition-and-knee-joint-morphology-data-from-the-osteoarthritis-initiative
#10
G B Joseph, M C Nevitt, C E McCulloch, J Neumann, J A Lynch, U Heilmeier, N E Lane, T M Link
OBJECTIVE: The purpose of this study was to assess the associations between serum/urine biomarkers for osteoarthritis and magnetic resonance (MR) imaging measures of cartilage composition and joint structure (cartilage, meniscus, and bone marrow), using MR imaging data from the Osteoarthritis Initiative (OAI). DESIGN: 141 subjects with Kellgren Lawrence (KL) grades 0-3 in the right knee and with available serum/urine biomarker assays were selected from the OAI. Cartilage magnetic resonance imaging (MRI) T2 measurements were performed in the medial femur, lateral femur, medial tibia, lateral tibia, and patella compartments...
August 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29778418/correlation-between-translational-and-rotational-kinematic-abnormalities-and-osteoarthritis-like-damage-in-two-in-vivo-sheep-injury-models
#11
Mehdi Shekarforoush, Jillian E Beveridge, David A Hart, Cyril B Frank, Nigel G Shrive
The relations between kinematic abnormalities and post traumatic osteoarthritis have not yet been clearly elucidated. This study was conducted to determine the finite helical axes parameters and the tibiofemoral translation vector in the knee joints of two surgically induced injury sheep models: anterior cruciate ligament and medial collateral ligament transection (ACL/MCL Tx) (n = 5) and lateral meniscectomy (n = 5). We hypothesized that morphological damage in the experimental joints would be correlated to alterations in these kinematic variables...
June 25, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29772990/the-effects-of-meniscal-geometry-on-susceptibility-for-meniscal-and-acl-injury-in-non-arthritic-knees-a-retrospective-case-control-study
#12
Alexander Tejani, Qais Naziri, Preston W Grieco, Robert Pivec, Damon Greene, Bhaveen V Kapadia, Dipal Chatterjee, William P Urban
Prior studies have not found significant differences in meniscal parameters between patients with meniscal and ligamentous injury and those without. The purpose of this study was to determine whether such relationships exist. Clinical records and magnetic resonance images of three subject groups were reviewed. Group 1 solely had meniscal tears (medial/lateral), Group 2 had meniscal tears with concurrent ACL tears, and Group 3 had healthy knees. The mean age of subjects included was 35.9 years (range 8.2-72...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29706255/magnetic-resonance-imaging-of-cysts-cystlike-lesions-and-their-mimickers-around-the-knee-joint
#13
REVIEW
Sumer N Shikhare, Poh Lye Paul See, Hong Chou, Abeer Mohamed Al-Riyami, Wilfred C G Peh
While interpreting routine magnetic resonance imaging (MRI) of the knee joint, a radiologist may encounter various cystic lesions such as ganglion, synovial, and meniscal cysts, among others. In some cases, MRI may demonstrate cystlike lesions around the knee due to fluid distention of normal bursa and recesses, the diagnosis of which should not be difficult if a radiologist is familiar with their characteristic location and MRI appearance. In addition, there are cyst mimickers such as hematomas, abscesses, vascular lesions, and neoplasms around knee joint that may pose a diagnostic challenge on routine MRI...
May 2018: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
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
#14
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...
July 2018: Investigative Radiology
https://www.readbyqxmd.com/read/29476215/natural-evolution-of-popliteomeniscal-fascicle-tears-over-2-years-and-its-association-with-lateral-articular-knee-cartilage-degeneration-in-patients-with-traumatic-anterior-cruciate-ligament-tear
#15
Julio Brandao Guimaraes, Luca Facchetti, Benedikt J Schwaiger, Alexandra S Gersing, Xiaojuan Li, Thomas M Link
OBJECTIVES: To assess (i) normal imaging anatomy of the popliteomeniscal fascicles, (ii) prevalence and natural evolution of popliteomeniscal fascicle tears (PMFT) in subjects with traumatic anterior cruciate ligament (ACL) tears over 2 years and (iii) compare knee cartilage degeneration in subjects with and without PMFT longitudinally. METHODS: 57 subjects with ACL tears were screened for PMFT. Morphological (high-resolution 3D fast spin-echo) and compositional (T1ρ and T2 mapping) MR imaging was performed prior to and 2 years after ACL reconstruction...
August 2018: European Radiology
https://www.readbyqxmd.com/read/29460414/tissue-engineering-of-human-knee-meniscus-using-functionalized-and-reinforced-silk-polyvinyl-alcohol-composite-three-dimensional-scaffolds-understanding-the-in-vitro-and-in-vivo-behavior
#16
Mamatha Muraleedharan Pillai, Janarthanan Gopinathan, Rathinasamy Senthil Kumar, Gopal Sathish Kumar, Sivanandam Shanthakumari, Kulasekaran Santosh Sahanand, Amitava Bhattacharyya, Rajendran Selvakumar
Tissue engineered constructs with rapid restoration of mechanical and biological properties remain a challenge, emphasizing the need to develop novel scaffolds. Here, we present a multicomponent composite three-dimensional scaffold structure with biomimetic reinforcement and biomolecule functionalization for meniscus tissue engineering. The scaffold structure was developed using 3:1 silk fibroin (SF) and polyvinyl alcohol (PVA). Autoclaved eggshell membrane (AESM) powder (1-3%w/v) was used as reinforcement to enhance biomechanical properties...
June 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29452004/review-of-literature-on-measurements-of-non-invasive-break-up-times-lipid-morphology-and-tear-meniscal-height-using-commercially-available-hand-held-instruments
#17
Louis Tong, Lim Shee Teng
Purpose/aims: Dry eye is a common multi-factorial disease characterized by tearfilm dysfunction. Diagnosis of dry eye requires documentation of tear status with non-invasive tear break up times (NIBUT), tear meniscal height (TMH), and tearfilm lipid layer. These parameters objectively assess tear stability and indirectly, the functional impact of meibomian gland dysfunction. While it is obvious that portable instrumentation gives broader access than fixed instrumentation, its value would be limited if it is unreliable and its precision and accuracy substantially worse than fixed instruments...
May 2018: Current Eye Research
https://www.readbyqxmd.com/read/29383002/chronic-recurrent-temporomandibular-joint-dislocation-a-comparison-of-various-surgical-treatment-options-and-demonstration-of-the-versatility-and-efficacy-of-the-dautrey-s-procedure
#18
Priya Jeyaraj
Introduction: There has been a changing trend of treating temporomandibular joint subluxation, which range from conservative non-surgical measures to various soft and hard tissue surgical procedures aimed at either augmenting or restricting the condylar path. Aim: This study was aimed at comparing the efficacy of three major surgical treatment modalities: condylar obstruction creation, obstruction removal and anti-translatory procedures. Also, the location, anatomy and morphology of the TMJs pre- and post-surgery were evaluated and compared using radiographs, sagittal and 3-D Computed Tomographic scans...
March 2018: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/29340746/similar-clinical-outcomes-following-collagen-or-polyurethane-meniscal-scaffold-implantation-a-systematic-review
#19
REVIEW
Darby A Houck, Matthew J Kraeutler, John W Belk, Eric C McCarty, Jonathan T Bravman
PURPOSE: The purpose of this systematic review is to evaluate the current literature in an effort to assess specific clinical outcomes following meniscal scaffold implantation using the two available scaffolds: Collagen Meniscal Implant (CMI) and the Actifit polyurethane meniscal scaffold. METHODS: A systematic review was performed by searching PubMed, Embase, and Cochrane Library to find studies evaluating clinical outcomes of patients undergoing meniscal scaffold implantation...
August 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29178030/sensitivity-to-change-and-association-of-three-dimensional-meniscal-measures-with-radiographic-joint-space-width-loss-in-rapid-clinical-progression-of-knee-osteoarthritis
#20
Melanie Roth, Katja Emmanuel, Wolfgang Wirth, C Kent Kwoh, David J Hunter, Felix Eckstein
OBJECTIVE: To determine whether 3D meniscal measures had similar sensitivity to longitudinal change as cartilage thickness; to what extent these measures are associated with longitudinal joint space width (JSW) change; and whether the latter associations differ between minimum (mJSW) and fixed-location JSW. METHODS: Two-year changes in medial meniscal position and morphology, cartilage thickness (MRI) and minimum and fixed-location JSW (radiography) were determined in 35 Osteoarthritis Initiative knees [12 men, age: 67 (51-77) years; 23 women, age: 65 (54-78) years], progressing from baseline Kellgren-Lawrence grade ≤2 to knee replacement within 3-5 years...
May 2018: European Radiology
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