keyword
MENU ▼
Read by QxMD icon Read
search

Menisci

keyword
https://www.readbyqxmd.com/read/29145286/bilateral-discoid-medial-meniscus-associated-with-meniscal-tears-and-hypoplasia-of-the-medial-femoral-condyle-a-case-report
#1
Hong-De Wang, Shi-Jun Gao
RATIONALE: Bilateral discoid medial menisci is an extremely rare abnormality of the knee joint. The presence of a discoid medial meniscus has been associated with magnetic resonance imaging (MRI) and radiographic changes in the tibial region, such as cupping of the medial tibial plateau and tibial physis collapse. While discoid medial meniscal tears with hypoplasia of the femoral medial condyles have not been previously reported. Herein, we report a case of bilateral discoid medial menisci associated with meniscal tears and femoral bone changes...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29130880/two-patients-and-two-knee-cysts
#2
Hale Ersoy, Stephen J Pomeranz
Differential diagnosis of a cystic lesion adjacent to menisci can be a challenge even when the case presents as seemingly straightforward. To "tell the story" as accurately as possible, the radiologist must be familiar with the natural history of these lesions as well as distinctive imaging features and must take all relevant factors into consideration, such as patient's age, activity level, and surgical history. This article presents two cases to illustrate how imaging features affect the report and management plan...
October 2017: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/29106743/quantifying-meniscal-kinematics-in-dogs
#3
Brian H Park, Scott A Banks, Antonio Pozzi
The dog has been used extensively as an experimental model to study meniscal treatments such as meniscectomy, meniscal repair, transplantation and regeneration. However, there is very little information on meniscal kinematics in the dog. This study used MR imaging to quantify in vitro meniscal kinematics in loaded dog knees in four distinct poses: extension, flexion, internal and external rotation. A new method was used to track the meniscal poses along the convex and posteriorly tilted tibial plateau. Meniscal displacements were large, displacing 13...
November 6, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29103976/accelerating-knee-mr-imaging-compressed-sensing-in-isotropic-three-dimensional-fast-spin-echo-sequence
#4
Seung Hyun Lee, Young Han Lee, Jin-Suck Suh
PURPOSE: To compare image quality between compressed sensing (CS)-3D-fast spin-echo (FSE) and conventional 3D-FSE sequences for knee magnetic resonance imaging (MRI). METHODS: Knee MRI of 43 patients (male:female, 14:29; mean age, 53years) were acquired using conventional and CS-3D-FSE with an acceleration factor of 1.5. Overall image quality was assessed by correlation coefficient, root-mean-square error (RMSE), and structural similarity (SSIM) index. Regional image quality was evaluated using signal-to-noise ratios (SNRs) and contrast-to-noise ratios (CNRs)...
November 2, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29103482/quantitative-evaluation-of-knee-cartilage-and-meniscus-destruction-in-patients-with-rheumatoid-arthritis-using-t1%C3%AF-and-t2-mapping
#5
Xiang Hong Meng, Zhi Wang, Li Guo, Xiu Chan Liu, Yu Wei Zhang, Ze Wei Zhang, Xin Long Ma
OBJECTIVE: To calculate T1ρ and T2 values of articular cartilage and menisci in knee joints of patients with RA, and compare the values between RA patients and healthy volunteers, to gain insight into the pathogenesis of cartilage and meniscus degradation in patients with RA. MATERIALS AND METHODS: Nine patients with RA and knee joints symptoms were enrolled in the study, twenty healthy volunteers without knee joint diseases were included as controls. Sagittal fat-saturated T1ρ and T2 mapping images were obtained on a 3T MR scanner (GE750, GE Healthcare, Waukesha, WI), using a dedicated 8-channel knee coil...
November 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29099611/spect-ct-arthrography
#6
Ujwal Bhure, Justus E Roos, Maria Del Sol Pérez Lago, Isabelle Steurer, Hannes Grünig, Urs Hug, Klaus Strobel
Single photon emission CT (SPECT)/CT arthrography, the combination of CT arthrography and late phase bone SPECT/CT, has been developed in 2011 and so far used in knee, ankle and wrist joints. SPECT/CT offers functional information about increased bone turnover in combination with morphological details. Compared with SPECT/CT alone, additional intra-articular contrast enables the assessment of cartilage, menisci, ligaments and loose bodies. SPECT/CT arthrography is a promising alternative technique for the evaluation of internal derangement of joints in patients with MR contraindications and/or metallic implants...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29090500/five-minute-knee-mri-for-simultaneous-morphometry-and-t2-relaxometry-of-cartilage-and-meniscus-and-for-semiquantitative-radiological-assessment-using-double-echo-in-steady-state-at-3t
#7
Akshay S Chaudhari, Marianne S Black, Susanne Eijgenraam, Wolfgang Wirth, Susanne Maschek, Bragi Sveinsson, Felix Eckstein, Edwin H G Oei, Garry E Gold, Brian A Hargreaves
BACKGROUND: Biomarkers for assessing osteoarthritis activity necessitate multiple MRI sequences with long acquisition times. PURPOSE: To perform 5-minute simultaneous morphometry (thickness/volume measurements) and T2 relaxometry of both cartilage and meniscus, and semiquantitative MRI Osteoarthritis Knee Scoring (MOAKS). STUDY TYPE: Prospective. SUBJECTS: Fifteen healthy volunteers for morphometry and T2 measurements, and 15 patients (five each Kellgren-Lawrence grades 0/2/3) for MOAKS assessment...
November 1, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29065270/medial-meniscus-resection-increases-and-medial-meniscus-repair-preserves-anterior-knee-laxity-a-cohort-study-of-4497-patients-with-primary-anterior-cruciate-ligament-reconstruction
#8
Riccardo Cristiani, Erik Rönnblad, Björn Engström, Magnus Forssblad, Anders Stålman
BACKGROUND: There are still controversies regarding the effects on knee laxity of additional meniscus resection or repair in the setting of anterior cruciate ligament reconstruction (ACLR). Hypothesis/Purpose: The purpose was to determine the effects on knee laxity of resection or repair of medial meniscus (MM) or lateral meniscus (LM) injuries in the ACLR knee. The hypothesis was that patients with an additional meniscus resection would have significantly increased postoperative knee laxity versus that of an isolated ACLR, whereas patients with meniscus repair would have laxity comparable to that of an isolated ACLR...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29065035/the-effect-of-soft-tissue-injuries-on-clinical-outcomes-following-tibial-plateau-fracture-fixation
#9
Stephen J Warner, Matthew R Garner, Patrick C Schottel, Peter D Fabricant, Ryan R Thacher, Michael L Loftus, David L Helfet, Dean G Lorich
OBJECTIVE: The purpose of this study was to determine if ligamentous and meniscal injuries as determined by initial magnetic resonance imaging altered clinical outcomes following the fixation of tibial plateau fractures. DESIGN: Comparative cohort study. SETTING: Academic level I trauma center. PATIENTS/PARTICIPANTS: Eighty-two patients from a prospective database of operatively treated tibial plateau fractures met the inclusion criteria, which consisted of injury radiographs, preoperative knee MRI, and a minimum of twelve months of clinical outcomes...
October 14, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29059110/discoid-lateral-meniscus-in-children-diagnosis-management-and-outcomes
#10
Mininder S Kocher, Catherine A Logan, Dennis E Kramer
Discoid meniscus is a congenital variant of the knee joint that typically involves abnormal morphology and potential instability of the lateral meniscus. Some discoid menisci have abnormal peripheral attachments and are unstable. Discoid menisci are prone to tearing secondary to increased thickness, poor tissue quality, and instability. Patients may or may not be symptomatic. Torn or unstable discoid menisci cause mechanical symptoms, pain, and swelling. Symptomatic patients in whom nonsurgical management fails most frequently are treated with arthroscopic surgery...
November 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29054695/where-does-meniscal-damage-progress-most-rapidly-an-analysis-using-three-dimensional-shape-models-on-data-from-the-osteoarthritis-initiative
#11
B Dube, M A Bowes, S R Kingsbury, E M A Hensor, S Muzumdar, P G Conaghan
OBJECTIVES: Meniscal pathology is integral to knee osteoarthritis (OA) and its progression; it provides a progression biomarker and a potential treatment target. Magnetic resonance imaging (MRI) demonstrates large heterogeneity in meniscal damage; this structural complexity means measurement is difficult. The aim of this study was to apply novel 3D image analysis to determine which meniscal pathologies demonstrated most change during OA progression. METHODS: Knee images were selected from the progression cohort of the Osteoarthritis Initiative choosing participants with risk factors for medial OA progression...
October 17, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29028449/geometric-characteristics-of-the-knee-are-associated-with-a-noncontact-acl-injury-to-the-contralateral-knee-after-unilateral-acl-injury-in-young-female-athletes
#12
James G Levins, Erin C Argentieri, Daniel R Sturnick, Mack Gardner-Morse, Pamela M Vacek, Timothy W Tourville, Robert J Johnson, James R Slauterbeck, Bruce D Beynnon
BACKGROUND: Contralateral anterior cruciate ligament (CACL) injury after recovery from a first-time ACL rupture occurs at a high rate in young females; however, little is known about the risk factors associated with bilateral ACL trauma. HYPOTHESIS: The geometric characteristics of the contralateral knee at the time of the initial ACL injury are associated with risk of suffering a CACL injury in these female athletes. STUDY DESIGN: Case-control study; Level of evidence, 3...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29017608/autologous-mesenchymal-stem-cells-or-meniscal-cells-what-is-the-best-cell-source-for-regenerative-meniscus-treatment-in-an-early-osteoarthritis-situation
#13
Johannes Zellner, Girish Pattappa, Matthias Koch, Siegmund Lang, Johannes Weber, Christian G Pfeifer, Michael B Mueller, Richard Kujat, Michael Nerlich, Peter Angele
BACKGROUND: Treatment of meniscus tears within the avascular region represents a significant challenge, particularly in a situation of early osteoarthritis. Cell-based tissue engineering approaches have shown promising results. However, studies have not found a consensus on the appropriate autologous cell source in a clinical situation, specifically in a challenging degenerative environment. The present study sought to evaluate the appropriate cell source for autologous meniscal repair in a demanding setting of early osteoarthritis...
October 10, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29017357/automated-hexahedral-meshing-of-knee-cartilage-structures-application-to-data-from-the-osteoarthritis-initiative
#14
B Rodriguez-Vila, P Sánchez-González, I Oropesa, E J Gomez, D M Pierce
We propose a fully automated methodology for hexahedral meshing of patient-specific structures of the human knee obtained from magnetic resonance images, i.e. femoral/tibial cartilages and menisci. We select eight patients from the Osteoarthritis Initiative and validate our methodology using MATLAB on a laptop computer. We obtain the patient-specific meshes in an average of three minutes, while faithfully representing the geometries with well-shaped elements. We hope to provide a fundamentally different means to test hypotheses on the mechanisms of disease progression by integrating our patient-specific FE meshes with data from individual patients...
October 10, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28990676/arthroscopic-approach-and-anatomy-of-the-stifle-joint-in-the-rabbit
#15
Sarah Torrey Peters, Markus Wilke, Tanja Schmid
OBJECTIVE: To describe a technique and normal findings for arthroscopy of the stifle in rabbits. STUDY DESIGN: Cadaver study. ANIMALS: Twenty cadaveric stifles from New Zealand White rabbits were examined. METHODS: The arthroscope was placed through a medial portal, and instrument portals were created on the lateral aspect of the joint. The same portals were used for examination of the entire joint and palpation of structures with a probe...
October 9, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28986637/association-of-weight-change-with-progression-of-meniscal-intrasubstance-degeneration-over-48-months-data-from-the-osteoarthritis-initiative
#16
Julio Brandao Guimaraes, Michael C Nevitt, Charles E McCulloch, Benedikt J Schwaiger, Alexandra S Gersing, Luca Facchetti, Matthew D Bucknor, Nattagan Chanchek, Felix Liu, Gabby B Joseph, Thomas M Link
OBJECTIVES: To investigate the association of weight change over 48 months with progression of meniscal intrasubstance degeneration (MID). METHODS: We studied 487 subjects with MID at baseline and after 48 months using 3-T MRI with the same protocol (FSE sequences with and without fat suppression). These participants lost weight (≥3%, n = 141), had moderate weight gain (3-10%, n = 77), substantial weight gain (>10%, n = 15) or maintained stable weight (n = 254)...
October 6, 2017: European Radiology
https://www.readbyqxmd.com/read/28966381/meniscal-preservation-is-important-for-the-knee-joint
#17
Shantanu Sudhakar Patil, Anshu Shekhar, Sachin Ramchandra Tapasvi
Native joint preservation has gained importance in recent years. This is mostly to find solutions for limitations of arthroplasty. In the knee joint, the menisci perform critical functions, adding stability during range of motion and efficiently transferring load across the tibiofemoral articulation while protecting the cartilage. The menisci are the most common injury seen by orthopedicians, especially in the younger active patients. Advances in technology and our knowledge on functioning of the knee joint have made meniscus repair an important mode of treatment...
September 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28965040/mechanical-modeling-and-characterization-of-meniscus-tissue-using-flat-punch-indentation-and-inverse-finite-element-method
#18
Behzad Seyfi, Nasser Fatouraee, Milad Imeni
In this paper, to characterize the mechanical properties of meniscus by considering its local microstructure, a novel nonlinear poroviscoelastic Finite Element (FE) model has been developed. To obtain the mechanical response of meniscus, indentation experiments were performed on bovine meniscus samples. The ramp-relaxation test scenario with different depths and preloads was designed to capture the mechanical characteristics of the tissue in different regions of the medial and lateral menisci. Thereafter, a FE simulation was performed considering experimental conditions...
September 23, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28950572/edge-contact-angle-and-modified-kelvin-equation-for-condensation-in-open-pores
#19
Alexandr Malijevský, Andrew O Parry, Martin Pospíšil
We consider capillary condensation transitions occurring in open slits of width L and finite height H immersed in a reservoir of vapor. In this case the pressure at which condensation occurs is closer to saturation compared to that occurring in an infinite slit (H=∞) due to the presence of two menisci that are pinned near the open ends. Using macroscopic arguments, we derive a modified Kelvin equation for the pressure p_{cc}(L;H) at which condensation occurs and show that the two menisci are characterized by an edge contact angle θ_{e} that is always larger than the equilibrium contact angle θ, only equal to it in the limit of macroscopic H...
August 2017: Physical Review. E
https://www.readbyqxmd.com/read/28933331/-comparison-of-the-arthroscopic-finding-in-the-knee-joint-and-the-mri-retrospective-study
#20
K Šimeček, P Látal, J Duda, M Šimeček
PURPOSE OF THE STUDY Our retrospective study presents the comparison of the preoperative magnetic resonance imaging of the knee joint - MRI - and the arthroscopic finding - ASC. Its aim is to find out how a positive or a negative finding of MRI corresponds with the operative finding and how much the experience of radiologist contributes to the conformity. MATERIAL AND METHODS The MRI findings of knee joints treated surgically at two departments in 2013 and 2014 were assessed. The MRI was performed in a total of 470 patients who subsequently underwent an arthroscopic surgery...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
keyword
keyword
51387
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"