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Musculoskeletal MRI

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https://www.readbyqxmd.com/read/29028358/posterior-tibial-translation-measurements-on-magnetic-resonance-imaging-improve-diagnostic-sensitivity-for-chronic-posterior-cruciate-ligament-injuries-and-graft-tears
#1
Nicholas N DePhillipo, Mark E Cinque, Jonathan A Godin, Gilbert Moatshe, Jorge Chahla, Robert F LaPrade
BACKGROUND: Magnetic resonance imaging (MRI) of the knee is a highly sensitive and specific method for diagnosing acute posterior cruciate ligament (PCL) tears, with a reported accuracy of 96% to 100%. In chronic and revision settings, these injuries may be missed on MRI because of the apparent continuity of nonfunctional PCL fibers. Posterior tibial translation (PTT) of the medial compartment has been identified as a potential secondary finding of PCL tear on routine MRI. Purpose/Hypothesis: The purpose of this study was to evaluate the sensitivity of PTT on MRI associated with PCL injuries and compare it with the sensitivity of a radiologist's MRI interpretation with preoperative posterior knee stress radiographs as the gold standard...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29027984/the-effect-of-intra-articular-injection-of-autologous-microfragmented-fat-tissue-on-proteoglycan-synthesis-in-patients-with-knee-osteoarthritis
#2
Damir Hudetz, Igor Borić, Eduard Rod, Željko Jeleč, Andrej Radić, Trpimir Vrdoljak, Andrea Skelin, Gordan Lauc, Irena Trbojević-Akmačić, Mihovil Plečko, Ozren Polašek, Dragan Primorac
Osteoarthritis (OA) is one of the leading musculoskeletal disorders in the adult population. It is associated with cartilage damage triggered by the deterioration of the extracellular matrix tissue. The present study explores the effect of intra-articular injection of autologous microfragmented adipose tissue to host chondrocytes and cartilage proteoglycans in patients with knee OA. A prospective, non-randomized, interventional, single-center, open-label clinical trial was conducted from January 2016 to April 2017...
October 13, 2017: Genes
https://www.readbyqxmd.com/read/29026610/selective-blood-sampling-for-fgf-23-in-tumor-induced-osteomalacia
#3
Hans-Christof Schober, Christian Kneitz, Franziska Fieber, Kathrin Hesse, Henry Schroeder
Tumor-induced osteomalacia (TIO) is caused by the hormone fibroblast growth factor 23 (FGF-23). It is mainly produced in the tissue of mesenchymal tumors. Patients with TIO frequently suffer from a chronic decompensated pain syndrome and/or muscle weakness with postural deformity. Despite the severity of the disease, the diagnosis is frequently established late. In some cases, it takes several years to establish the condition. This case report concerning a 68-year old woman demonstrates the selective blood sampling for FGF-23 as path-breaking diagnostics to confirm the diagnosis of a neuroendocrine tumor...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29018768/soft-tissue-recurrence-of-giant-cell-tumor-of-the-bone-prevalence-and-radiographic-features
#4
Leilei Xu, Jing Jin, Annan Hu, Jin Xiong, Dongmei Wang, Qi Sun, Shoufeng Wang
AIM: Recurrence of giant cell tumor of bone (GCTB) in the soft tissue is rarely seen in the clinical practice. This study aims to determine the prevalence of soft tissue recurrence of GCTB, and to characterize its radiographic features. METHODS: A total of 291 patients treated by intralesional curettage for histologically diagnosed GCTB were reviewed. 6 patients were identified to have the recurrence of GCTB in the soft tissue, all of whom had undergone marginal resection of the lesion...
November 2017: Journal of Bone Oncology
https://www.readbyqxmd.com/read/28986631/comparative-reliability-and-diagnostic-performance-of-conventional-3t-magnetic-resonance-imaging-and-1-5t-magnetic-resonance-arthrography-for-the-evaluation-of-internal-derangement-of-the-hip
#5
A Chopra, A J Grainger, B Dube, R Evans, R Hodgson, J Conroy, D Macdonald, Philip Robinson
OBJECTIVE: To compare the diagnostic accuracy of conventional 3T MRI against 1.5T MR arthrography (MRA) in patients with clinical femoroacetabular impingement (FAI). METHODS: Sixty-eight consecutive patients with clinical FAI underwent both 1.5T MRA and 3T MRI. Imaging was prospectively analysed by two musculoskeletal radiologists, blinded to patient outcomes and scored for internal derangement including labral and cartilage abnormality. Interobserver variation was assessed by kappa analysis...
October 6, 2017: European Radiology
https://www.readbyqxmd.com/read/28971693/prospective-evaluation-of-structural-allograft-transplantation-for-osteochondral-lesions-of-the-talar-shoulder
#6
Samuel B Adams, Travis J Dekker, Adam P Schiff, Christopher P Gross, James A Nunley, Mark E Easley
BACKGROUND: Structural or bulk osteochondral allograft transplantation for shoulder talar osteochondral lesions as a salvage procedure has demonstrated efficacy in several retrospective reviews. The purpose of this study was to evaluate prospectively patients who received fresh structural allograft transplantation to the talus. METHODS: Prospective evaluation of a consecutive series of patients who underwent fresh structural allograft transplantation for an osteochondral lesion of the talus (OLT) was performed...
September 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28971081/prevalence-of-femoroacetabular-impingement-morphology-in-asymptomatic-youth-soccer-players-magnetic-resonance-imaging-study-with-clinical-correlation
#7
Anthony Kerbes Yépez, Marcelo Abreu, Bruno Germani, Carlos Roberto Galia
OBJECTIVE: To determine the prevalence of femoroacetabular impingement morphology (FAIM), cam- or pincer-type, by magnetic resonance imaging (MRI) in asymptomatic adolescent soccer players, and to evaluate the possible correlation between alterations on MRI and clinical examination findings. METHODS: A cross-sectional study was conducted to determine the prevalence of FAIM in asymptomatic youth soccer players aged 13-18 years. A total of 112 hips in 56 players (mean age 15...
2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28965863/a-methodological-framework-for-detecting-ulcers-risk-in-diabetic-foot-subjects-by-combining-gait-analysis-a-new-musculoskeletal-foot-model-and-a-foot-finite-element-model
#8
Alessandra Scarton, Annamaria Guiotto, Tiago Malaquias, Fabiola Spolaor, Giacomo Sinigaglia, Claudio Cobelli, Ilse Jonkers, Zimi Sawacha
Diabetic foot is one of the most debilitating complications of diabetes and may lead to plantar ulcers. In the last decade, gait analysis, musculoskeletal modelling (MSM) and finite element modelling (FEM) have shown their ability to contribute to diabetic foot prevention and suggested that the origin of the plantar ulcers is in deeper tissue layers rather than on the plantar surface. Hence the aim of the current work is to develop a methodology that improves FEM-derived foot internal stresses prediction, for diabetic foot prevention applications...
September 1, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28965693/-ischiopubic-osteochondrosis-revealed-by-an-atypical-acute-transient-synovitis-of-the-hip-a-case-report
#9
S Stormacq, N Gauquier, O Gilliaux
We report here the case of a 3-year-old patient, who presented a left limp and a total refusal of walking, without any traumatism. Clinical examination revealed a significant pain in the left leg with a limit to the limiting mobilization. Acute phase reactants were slightly elevated. Based on the hip ultrasound, acute transient synovitis of the hip was diagnosed. Following persistent complaints, a hip plain radiography was performed, showing a discreet reshuffle at the right ischiopubic branch. The MRI of the hip revealed a discrete T2 high intensity centered on the right ischiopubic synchondrosis (IPS), corresponding to a Van Neck-Odelberg osteochondrosis...
September 28, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28952012/comparison-of-a-fast-5-min-knee-mri-protocol-with-a-standard-knee-mri-protocol-a-multi-institutional-multi-reader-study
#10
Erin FitzGerald Alaia, Alex Benedick, Nancy A Obuchowski, Joshua M Polster, Luis S Beltran, Jean Schils, Elisabeth Garwood, Christopher J Burke, I-Yuan Joseph Chang, Soterios Gyftopoulos, Naveen Subhas
PURPOSE: To compare diagnostic performance of a 5-min knee MRI protocol to that of a standard knee MRI. MATERIALS AND METHODS: One hundred 3 T (100 patients, mean 38.8 years) and 50 1.5 T (46 patients, mean 46.4 years) MRIs, consisting of 5 fast, 2D multi-planar fast-spin-echo (FSE) sequences and five standard multiplanar FSE sequences, from two academic centers (1/2015-1/2016), were retrospectively reviewed by four musculoskeletal radiologists. Agreement between fast and standard (interprotocol agreement) and between standard (intraprotocol agreement) readings for meniscal, ligamentous, chondral, and bone pathology was compared for interchangeability...
September 26, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28950859/protocol-for-a-multi-centre-randomised-controlled-trial-comparing-arthroscopic-hip-surgery-to-physiotherapy-led-care-for-femoroacetabular-impingement-fai-the-australian-fashion-trial
#11
Nicholas J Murphy, Jillian Eyles, Kim L Bennell, Megan Bohensky, Alexander Burns, Fraser M Callaghan, Edward Dickenson, Camdon Fary, Stuart M Grieve, Damian R Griffin, Michelle Hall, Rachel Hobson, Young Jo Kim, James M Linklater, David G Lloyd, Robert Molnar, Rachel L O'Connell, John O'Donnell, Michael O'Sullivan, Sunny Randhawa, Stephan Reichenbach, David J Saxby, Parminder Singh, Libby Spiers, Phong Tran, Tim V Wrigley, David J Hunter
BACKGROUND: Femoroacetabular impingement syndrome (FAI), a hip disorder affecting active young adults, is believed to be a leading cause of hip osteoarthritis (OA). Current management approaches for FAI include arthroscopic hip surgery and physiotherapy-led non-surgical care; however, there is a paucity of clinical trial evidence comparing these approaches. In particular, it is unknown whether these management approaches modify the future risk of developing hip OA. The primary objective of this randomised controlled trial is to determine if participants with FAI who undergo hip arthroscopy have greater improvements in hip cartilage health, as demonstrated by changes in delayed gadolinium-enhanced magnetic resonance imaging (MRI) of cartilage (dGEMRIC) index between baseline and 12 months, compared to those who undergo physiotherapy-led non-surgical management...
September 26, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28947878/diagnostic-methods-for-detection-of-bone-metastases
#12
REVIEW
Bartosz Łukaszewski, Jerzy Nazar, Maciej Goch, Marta Łukaszewska, Adrian Stępiński, Mieczysława U Jurczyk
Skeletal metastases are severe complications in the course of cancer, and they indicate a worse prognosis. The use of modern imaging techniques allows rapid diagnosis of bone metastases. Properly selected diagnostic imaging (scintigraphy, positron emission tomography, whole body MRI) allows us to evaluate the number of metastatic foci in the skeletal system. Complementary imaging examinations (X-ray, computed tomography, magnetic resonance imaging) determine the extent of metastasis and its character: osteolytic, osteoblast, mixed)...
2017: Contemporary Oncology Współczesna Onkologia
https://www.readbyqxmd.com/read/28936896/fat-fraction-mapping-using-magnetic-resonance-imaging-insight-into-pathophysiology
#13
Timothy J P Bray, Manil D Chouhan, Shonit Punwani, Alan Bainbridge, Margaret A Hall-Craggs
Adipose cells have traditionally been viewed as a simple, passive energy storage depot for triglycerides. However, in recent years it has become clear that adipose cells are highly physiologically active and have a multitude of endocrine, metabolic, haematological and immune functions. Changes in the number or size of adipose cells may be directly implicated in disease (for example, in the metabolic syndrome), but may also be linked to other pathological processes such as inflammation, malignant infiltration or infarction...
September 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28934866/initial-experience-with-synthetic-mri-of-the-knee-at-3t-comparison-with-conventional-t-1-weighted-imaging-and-t2-mapping
#14
Sunghoon Park, Kyu-Sung Kwack, Young Ju Lee, Sung-Min Gho, Hyun Young Lee
OBJECTIVE: To assess the feasibility and accuracy of synthetic magnetic resonance imaging (MRI) compared to conventional T1-weighted and multi-echo spin-echo (MESE) sequences for obtaining T2 values in the knee joint at 3 Tesla. METHODS: This retrospective study included 19 patients with normal findings in the knee joint who underwent both synthetic MRI and MESE pulse sequences for T2 quantification. T2 values of the two sequences at the articular cartilage, bone marrow, and muscle were measured...
September 21, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28924815/automatic-determination-of-the-need-for-intravenous-contrast-in-musculoskeletal-mri-examinations-using-ibm-watson-s-natural-language-processing-algorithm
#15
Hari Trivedi, Joseph Mesterhazy, Benjamin Laguna, Thienkhai Vu, Jae Ho Sohn
Magnetic resonance imaging (MRI) protocoling can be time- and resource-intensive, and protocols can often be suboptimal dependent upon the expertise or preferences of the protocoling radiologist. Providing a best-practice recommendation for an MRI protocol has the potential to improve efficiency and decrease the likelihood of a suboptimal or erroneous study. The goal of this study was to develop and validate a machine learning-based natural language classifier that can automatically assign the use of intravenous contrast for musculoskeletal MRI protocols based upon the free-text clinical indication of the study, thereby improving efficiency of the protocoling radiologist and potentially decreasing errors...
September 18, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28906125/imaging-of-rare-appendicular-non-acral-soft-tissue-chondromas-in-adults-with-histopathologic-correlation
#16
Mohamed Ragab Nouh, Hanan Abd El-Aziz Amr, Rola H Ali
Background Soft-tissue chondroma (STC) is a rare benign soft tissue tumor that arises primarily in acral extra-skeletal locations. Occasionally, STCs may arise in more proximal non-acral locations, accompanied by non-classic features that label them as indeterminate lesions and pose diagnostic challenge for both radiologists and pathologists alike. Purpose To explicate the potential of diagnostic imaging in the identification and characterization of appendicular non-acral STCs with emphasis on their morphologic magnetic resonance imaging (MRI) enhancement...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28900694/-muscle-injuries-in-athletes-the-value-of-magnetic-resonance-imaging
#17
REVIEW
C Lückerath, C Rehnitz
Competitive sports yield high demands on the musculoskeletal system, accordingly muscle injuries are a common complication. Early imaging clarification of the muscles in cases of a trauma is essential in order to define the exact location of the lesion, the affected muscles, the extent and the degree of the injury as well as to define possible concomitant complications. In the case of a professional athlete, the assessment made by MRI is important for defining the individually required resting period for a riskless resumption of the sporting activities...
September 12, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28900523/sonography-in-diagnosis-of-adhesive-capsulitis-of-the-shoulder-a-case-control-study
#18
Anupama Tandon, Sakshi Dewan, Shuchi Bhatt, A K Jain, Rima Kumari
PURPOSE: Adhesive capsulitis (AC) of the shoulder has been a diagnosis of exclusion on sonography due to lack of specific diagnostic criteria. This study prospectively assesses the efficacy of sonography using multiple static and dynamic parameters for diagnosis of AC. MATERIALS AND METHODS: Shoulder sonography was performed independently by two musculoskeletal radiologists on 90 subjects (60 symptomatic and 30 controls). All symptomatic subjects were subjected to an MRI...
September 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28890658/magnetic-resonance-imaging-of-the-axial-skeleton-in-patients-with-spondyloarthritis-distribution-pattern-of-inflammatory-and-structural-lesions
#19
Patrick Hoffstetter, Mohammed H Al Suwaidi, Alexander Joist, Achim Benditz, Martin Fleck, Christian Stroszczynski, Christian Dornia
PURPOSE: Spondyloarthritis is a chronic inflammatory disorder of the musculoskeletal system driven by systemic enthesitis and typically involving the axial skeleton, ie, the spine and the sacroiliac joints. The purpose of this study was to assess the distribution pattern of inflammatory and structural magnetic resonance imaging (MRI) findings in spondyloarthritis. METHODS: Retrospective study of 193 patients with axial spondyloarthritis who received MRI of the spine and the sacroiliac joints...
2017: Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28865532/magnetic-resonance-imaging-of-musculoskeletal-emergencies
#20
Parthiv Mehta, Micheal Morrow, Joshua Russell, Nikhil Madhuripan, Michael Habeeb
Musculoskeletal trauma and infections are commonly encountered in the emergency department. Magnetic resonance imaging (MRI) is rarely employed in true emergencies and most musculoskeletal studies can be deferred to the outpatient setting. This article seeks to address the urgent conditions in which MRI can play a role in diagnosis, management, and treatment. This article outlines MRI's role in the evaluation of posterolateral corner injuries and other soft-tissue pathologies such as rhabdomyolysis, diabetic myonecrosis, septic arthritis, cellulitis, necrotizing fasciitis, and compartment syndrome...
August 2017: Seminars in Ultrasound, CT, and MR
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