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Musculoskeletal MRI

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https://www.readbyqxmd.com/read/29917242/mechanoadaptation-articular-cartilage-through-thick-and-thin
#1
Tonia L Vincent, Angus Wann
The articular cartilage is exquisitely sensitive to mechanical load. Its structure is largely defined by the mechanical environment and destruction in osteoarthritis is the pathophysiological consequence of abnormal mechanics. It is often overlooked that disuse of joints causes profound loss of volume in the articular cartilage, a clinical observation first described in polio patients and stroke victims. Through the 1980s, the results of studies exploiting experimental joint immobilisation supported this. Importantly, this substantial body of work was also the first to describe metabolic changes that resulted in decreased synthesis of matrix molecules, especially sulfated proteoglycans...
June 19, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29915937/diagnostic-accuracy-of-an-abbreviated-mri-protocol-for-detecting-radiographically-occult-hip-and-pelvis-fractures-in-the-elderly
#2
Andrew B Ross, Brian Y Chan, Paul H Yi, Michael D Repplinger, David J Vanness, Kenneth S Lee
OBJECTIVE: To determine the diagnostic accuracy of an abbreviated, two-sequence MRI protocol using limited pulse sequences for the detection of radiographically occult hip and pelvis fractures in the elderly compared to the complete MRI examination. MATERIALS AND METHODS: One hundred and eleven consecutive emergency department patients age 65 or older who had undergone MRI to evaluate for clinically suspected hip fracture after negative radiographs were included in the study...
June 18, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29913653/pain-and-other-symptoms-in-patients-with-chronic-benign-paroxysmal-positional-vertigo-bppv
#3
Wenche Iglebekk, Carsten Tjell, Peter Borenstein
Background and aim A diagnosis of chronic benign paroxysmal positional vertigo (BPPV) is based on brief attacks of rotatory vertigo and concomitant nystagmus elicited by rapid changes in head position relative to gravity. However, the clinical course of BPPV may vary considerably from a self-limiting to a persisting and/or recurrent disabling problem. The authors' experience is that the most common complaints of patients with chronic BPPV are nautical vertigo or dizziness with other symptoms including neck pain, headache, widespread musculoskeletal pain, fatigue, and visual disturbances...
December 29, 2017: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/29909579/martin-vahlensieck-and-maximilian-reiser-eds-mri-of-the-musculoskeletal-system-second-edition-thieme-verlags-gruppe-stuttgart-2018-isbn-978-3-13-116-572-5
#4
Antonio D'Addio, Luigi Mansi
No abstract text is available yet for this article.
June 16, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29896018/mr-imaging-of-biocartilage-augmented-microfracture-surgery-utilizing-2d-mocart-and-koos-scores
#5
Aaron H Carter, Nicholas Guttierez, Ty K Subhawong, H T Temple, Bryson P Lesniak, Michael G Baraga, Jean Jose
Objectives: BioCartilage is a novel scaffold-based microfracture augmentation technique that has been shown to aid in chondrogenic differentiation of adult progenitor cells resulting in formation of more hyaline-like cartilage. As this cartilage repair technique becomes more commonplace, it is essential that the musculoskeletal radiologist and orthopedic surgeon gain familiarity with the surgical technique and its post-operative MR imaging findings. Methods: We present several case studies regarding MRI findings (modified clinical 2D MOCART) and clinical outcome (KOOS) scores in patients who have undergone this novel surgical procedure...
April 2018: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29889962/the-role-of-magnetic-resonance-imaging-in-optimizing-injury-management-in-air-force-pararescuemen-combat-rescue-officers-and-survival-specialists
#6
Stephen C Rush, Christopher Foresto, Christopher W Hewitt, Marc G Grossman, Christopher D Petersen, Isabelle Gallo, Brian P Staak, Jessica T Rush
Operators perform physically demanding jobs associated with a variety of overuse and acute musculoskeletal injuries. The current management of musculoskeletal complaints in the Air Force includes plane radiographs and 6 weeks of physical therapy (PT) before consideration of orthopedic consultation and magnetic resonance imaging (MRI); however, MRI shows a clear advantage compared with plane radiographs. We conducted a performance improvement project and conclude that (1) MRI allowed for definitive diagnosis as well as definitive triage for care in a timely manner, (2) guidelines for ordering lumbosacral MRIs should be followed and not ordered for pain that is not progressive and severe or not associated with a neurological finding, and (3) because of the risk of X-ray exposure in patients in their 20 and 30s, X-rays should be avoided in this setting unless definitely indicated...
2018: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/29884567/increased-accuracy-of-varus-stress-radiographs-versus-magnetic-resonance-imaging-in-diagnosing-fibular-collateral-ligament-grade-iii-tears
#7
Patrick W Kane, Nicholas N DePhillipo, Mark E Cinque, Gilbert Moatshe, Jorge Chahla, Elizabeth Carpenter, Matthew T Provencher, Robert F LaPrade
PURPOSE: To evaluate the diagnostic accuracy of magnetic resonance imaging and varus stress radiographs for fibular collateral ligament (FCL) tears, and compare these modalities to intraoperative findings. METHODS: All patients who underwent an isolated FCL or combined anterior cruciate ligament (ACL)/FCL reconstruction by a single surgeon between 2010 and 2017 with preoperative varus stress radiographs and magnetic resonance imaging (MRI) were included in this study...
June 5, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29882050/radiological-identification-and-analysis-of-soft-tissue-musculoskeletal-calcifications
#8
REVIEW
Véronique Freire, Thomas P Moser, Marianne Lepage-Saucier
Musculoskeletal calcifications are frequent on radiographs and sometimes problematic. The goal of this article is to help radiologists to make the correct diagnosis when faced with an extraosseous musculoskeletal calcification. One should first differentiate a calcification from an ossification or a foreign body and then locate the calcification correctly. Each location has a specific short differential diagnosis, with minimal further investigation necessary. Intra-tendon calcifications are most frequently associated with hydroxyapatite deposition disease (HADD)...
June 7, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29874691/oblique-sagittal-images-prevent-underestimation-of-the-neuroforaminal-stenosis-grade-caused-by-disc-herniation-in-cervical-spine-mri
#9
Laurent Kintzelé, Christoph Rehnitz, Hans-Ulrich Kauczor, Marc-André Weber
PURPOSE:  To identify whether standard sagittal MRI images result in underestimation of the neuroforaminal stenosis grade compared to oblique sagittal MRI images in patients with cervical spine disc herniation. MATERIALS AND METHODS:  74 patients with a total of 104 cervical disc herniations compromising the corresponding nerve root were evaluated. Neuroforaminal stenosis grades were evaluated in standard and oblique sagittal images by one senior and one resident radiologist experienced in musculoskeletal imaging...
June 6, 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29872868/meniscal-root-tears-occur-frequently-in-multi-ligament-knee-injury-and-can-be-predicted-by-associated-mri-injury-patterns
#10
Jonathan D Kosy, Luigi Matteliano, Anshul Rastogi, Dawn Pearce, Daniel B Whelan
PURPOSE: The frequency of meniscal root tears in association with multi-ligament knee injury has not been established but adds to the complexity of surgical reconstruction and may have long-term consequences. Therefore, identifying root tears, on preoperative imaging, is important. The aim of this study was to identify the frequency of meniscal root tears, on preoperative magnetic resonance imaging, following multi-ligament injury and distinguish associated injury patterns that may aid detection...
June 5, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29870465/mri-guided-interventions-in-musculoskeletal-system
#11
Kamran Ahrar, Sharjeel H Sabir, Steven M Yevich, Rahul A Sheth, Judy U Ahrar, Alda L Tam, Jason R Stafford
Image-guided interventions in the musculoskeletal system require accurate detection and characterization of lesions involving bone and soft tissues. Magnetic resonance imaging (MRI) has superior soft tissue contrast resolution particularly in bone and soft tissues where computed tomography and ultrasonography have significant limitations. In addition, the multiplanar imaging capabilities of MRI facilitate targeting lesions and tracking interventional devices. Although conventional diagnostic MRI sequences suffer from motion sensitivity and prolonged imaging time, recently developed fast imaging sequences allow for rapid acquisition of high-quality images, rendering MRI more suitable for image-guided interventions...
June 2018: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/29866668/case-of-primary-sjogren-s-syndrome-preceded-by-dystonia
#12
Kerime Ararat, Idanis Berrios, Anas Hannoun, Carolina Ionete
There are only six cases in literature that describe development of dystonia with Sjogren's syndrome (SS). We describe a case of a 43-year-old woman who presented with symptoms including movement disorder, sensory neurogenic bladder, sensory loss and neuropathic pain, migraine like headaches, musculoskeletal pain, Raynaud's phenomenon and dysautonomia. Symptoms started in 2000, with weakness that progressed to dystonia in 2003. Diagnostic work-up was inconclusive with negative inflammatory serologies, cerebrospinal fluid and MRI for many years...
June 4, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29863601/magnetic-resonance-imaging-based-grading-of-cartilaginous-bone-tumors-added-value-of-quantitative-texture-analysis
#13
Benjamin Fritz, Daniel A Müller, Reto Sutter, Moritz C Wurnig, Matthias W Wagner, Christian W A Pfirrmann, Michael A Fischer
OBJECTIVES: The aim of this study was to assess the interreader agreement and diagnostic accuracy of morphologic magnetic resonance imaging (MRI) analysis and quantitative MRI-based texture analysis (TA) for grading of cartilaginous bone tumors. MATERIALS AND METHODS: This retrospective study was approved by our local ethics committee. Magnetic resonance imaging scans of 116 cartilaginous bone neoplasms were included (53 chondromas, 26 low-grade chondrosarcomas, 37 high-grade chondrosarcomas)...
May 31, 2018: Investigative Radiology
https://www.readbyqxmd.com/read/29859772/estimating-lengths-of-semitendinosus-and-gracilis-tendons-by-magnetic-resonance-imaging
#14
Omer A Ilahi, R Scott Staewen, Eugene F Stautberg, Ali A Qadeer
PURPOSE: To determine whether preoperative magnetic resonance imaging (MRI) can help predict the tendon-only length of the semitendinosus (ST) and the gracilis (G). METHODS: The distance from the tibial insertion to the distal-most aspect of the musculotendinous junction (MTJ) of the ST and G was estimated on preoperative MRI scans of patients undergoing primary anterior cruciate ligament (ACL) reconstruction with single-bundle, quadruple-stranded hamstring autograft...
May 30, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29858354/options-for-assessing-joints-and-entheses-in-psoriatic-arthritis-by-ultrasonography-and-magnetic-resonance-imaging-how-to-move-forward
#15
Lihi Eder, Sibel Z Aydin, Gurjit S Kaeley, Walter P Maksymowych, Mikkel Østergaard
Psoriatic arthritis (PsA) is a heterogeneous disease with various manifestations of musculoskeletal inflammation. Recent advances in imaging, including ultrasound (US) and magnetic resonance imaging (MRI), allow for the accurate evaluation of the extent of inflammation and damage in the peripheral joints, spine, and entheses. The development and validation of outcome measures are critical steps in creating standardized evaluations of musculoskeletal inflammation and damage in psoriatic patients. At the 2017 meeting of the Group for Research and Assessment of Psoriasis and PsA (GRAPPA), recent work on outcome measures from the GRAPPA US and MRI working groups was summarized...
June 2018: Journal of Rheumatology. Supplement
https://www.readbyqxmd.com/read/29843749/hip-pathology-the-diagnostic-accuracy-of-magnetic-resonance-imaging
#16
Lucas Annabell, Vahid Master, Alexander Rhodes, Brett Moreira, Cassandra Coetzee, Phong Tran
BACKGROUND: Hip arthroscopy has led to a greater understanding of intra-articular hip pathology. Non-contrast magnetic resonance imaging (MRI) is currently the gold standard in non-invasive imaging diagnosis, with high sensitivity in identifying labral pathology but equivocal results for ligamentum teres damage and chondral defects. The aim of this study is to determine the accuracy of non-contrast MRI for diagnosis of intra-articular hip derangements and identify radiological features that could increase the accuracy of the diagnosis...
May 29, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29807530/towards-defining-muscular-regions-of-interest-from-axial-magnetic-resonance-imaging-with-anatomical-cross-reference-part-ii-cervical-spine-musculature
#17
James M Elliott, Jon Cornwall, Ewan Kennedy, Rebecca Abbott, Rebecca J Crawford
BACKGROUND: It has been suggested that the quantification of paravertebral muscle composition and morphology (e.g. size/shape/structure) with magnetic resonance imaging (MRI) has diagnostic, prognostic, and therapeutic potential in contributing to overall musculoskeletal health. If this is to be realised, then consensus towards standardised MRI methods for measuring muscular size/shape/structure are crucial to allow the translation of such measurements towards management of, and hopefully improved health for, those with some musculoskeletal conditions...
May 28, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29806423/-effectiveness-of-unicompartment-allografts-replacement-for-bone-tumor-around-the-knee
#18
Junqi Huang, Wenzhi Bi, Gang Han, Jinpeng Jia, Meng Xu, Wei Wang
Objective: To analyze the effectiveness of unicompartment allografts replacement for reconstructing bone defect after bone tumor resection around knee. Methods: Between January 2007 and January 2014, a total of 9 patients received unicompartment allografts replacement to treat bone tumor around the knee, including 6 males and 3 females, with an average age of 25.8 years (range, 17-38 years). There were 7 patients with bone giant cell tumor (postoperative recurrence of bone giant cell tumor in 1 case) and 2 patients with chondromyxoid fibroma...
August 1, 2017: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29789912/meniscal-pathologies-on-mri-correlate-with-increased-bone-tracer-uptake-in-spect-ct
#19
Jan Rechsteiner, Michael T Hirschmann, Milos Dordevic, Anna L Falkowski, Enrique A Testa, Felix Amsler, Anna Hirschmann
OBJECTIVES: To assess the relationship of subchondral bone tracer uptake (BTU) on SPECT/CT and meniscal pathologies on MRI in patients with painful knees. METHODS: Twenty-five patients who had MRI and SPECT/CT within 3 months without knee surgery or grade ≥3 cartilage lesions were prospectively included. Maximum values of each subchondral femorotibial area were quantified and a ratio was calculated in relation to a femoral shaft reference region, which represented the BTU background activity...
May 22, 2018: European Radiology
https://www.readbyqxmd.com/read/29787313/clinical-nononcologic-applications-of-pet-ct-and-pet-mri-in-musculoskeletal-orthopedic-and-rheumatologic-imaging
#20
Ali Gholamrezanezhad, Kyle Basques, Ali Batouli, George Matcuk, Abass Alavi, Hossein Jadvar
OBJECTIVE: With improvements in PET/CT and PET/MRI over the last decade, as well as increased understanding of the pathophysiology of musculoskeletal diseases, there is an emerging potential for PET as a primary or complementary modality in the management of rheumatologic and orthopedic conditions. CONCLUSION: We discuss the role of PET/CT and PET/MRI in nononcologic musculoskeletal disorders, including inflammatory and infectious conditions and postoperative complications...
June 2018: AJR. American Journal of Roentgenology
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