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Musculoskeletal MRI

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https://www.readbyqxmd.com/read/29221678/hybrid-imaging-in-foot-and-ankle-disorders
#1
R García Jiménez, F J García-Gómez, E Noriega Álvarez, C Calvo Morón, J J Martín-Marcuartu
Disorders of the foot and ankle are some of the most frequent ones affecting the musculoskeletal system and have a great impact on patients' quality of life. Accurate diagnosis is an important clinical challenge because of the complex anatomy and function of the foot, that make it difficult to locate the source of the pain by routine clinical examination. In the study of foot pathology, anatomical imaging (radiography, magnetic resonance imaging [MRI], ultrasound and computed tomography [CT]) and functional imaging (bone scan, positron emission tomography [PET] and MRI) techniques have been used...
December 5, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/29217532/imaging-detected-acute-muscle-injuries-in-athletes-participating-in-the-rio-de-janeiro-2016-summer-olympic-games
#2
Michel D Crema, Mohamed Jarraya, Lars Engebretsen, Frank W Roemer, Daichi Hayashi, Romulo Domingues, Abdalla Y Skaf, Ali Guermazi
BACKGROUND: Acute muscle injuries in elite athletes are responsible for a large portion of time loss injuries. AIM: To describe the frequency, the anatomic distribution, and severity of imaging-detected acute muscle injuries among athletes who competed in the Rio de Janeiro 2016 Summer Olympics. METHODS: We recorded all sports injuries reported by the National Olympic Committee medical teams and the Organising Committee medical staff during the 2016 Summer Olympics...
December 7, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29216699/-diagnostic-value-of-a-predictive-model-for-complete-ruptures-of-the-rotator-cuff-associated-to-subacromial-impingement
#3
I R Águila-Ledesma, J L Córdova-Fonseca, O Medina-Pontaza, D A Núñez-Gómez, C Calvache-García, J M Pérez-Atanasio, R Torres-González
Pathology related to the rotator cuff remains among the most prevalent musculoskeletal diseases. There is an increasing need for imaging studies (MRI, US, arthroscopy) to test the diagnostic performance of the medical history and physical examination. OBJECTIVE: To prove the diagnostic value of a clinical-radiographic predictive model to find complete ruptures of the rotator cuff. MATERIAL AND METHODS: Descriptive, observational, prospective, transversal and analytical study...
May 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29216285/myocardial-adaption-to-hi-r-t-in-previously-untrained-men-with-a-randomized-longitudinal-cardiac-mr-imaging-study-physical-adaptions-in-untrained-on-strength-and-heart-trial-push-trial
#4
Michael Scharf, Derya Oezdemir, Axel Schmid, Wolfgang Kemmler, Simon von Stengel, Matthias S May, Michael Uder, Michael M Lell
OBJECTIVE: Although musculoskeletal effects in resistance training are well described, little is known about structural and functional cardiac adaption in formerly untrained subjects. We prospectively evaluated whether short term high intensity (resistance) training (HI(R)T) induces detectable morphologic cardiac changes in previously untrained men in a randomized controlled magnetic resonance imaging (MRI) study. MATERIALS AND METHODS: 80 untrained middle-aged men were randomly assigned to a HI(R)T-group (n = 40; 43...
2017: PloS One
https://www.readbyqxmd.com/read/29209736/magnetic-resonance-imaging-based-morphological-and-alignment-assessment-of-the-patellofemoral-joint-and-its-relationship-to-proximal-patellar-tendinopathy
#5
Michel D Crema, Larissa G Cortinas, Giovanni B P Lima, Rene Jorge Abdalla, Sheila Jean McNeill Ingham, Abdalla Y Skaf
OBJECTIVE: To assess the differences in morphology and alignment of the knee between patients with proximal patellar tendinopathy (PPT) and a control group, using MRI and focusing on the patellofemoral joint. METHODS: We retrospectively included 35 patients with clinically diagnosed and unequivocal findings of PPT on knee MRI, the case group. For the control group, we included 70 patients who underwent knee MRI for other reasons, with no clinical or MRI evidence of PPT...
December 5, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29203433/management-of-soft-tissue-tumors-of-the-musculoskeletal-system
#6
REVIEW
A Rochwerger, J C Mattei
A palpable mass in the musculoskeletal system is a common reason for consultation. The main issue is that a malignant tumor must not be missed. Inappropriate initial treatment can have direct consequences on the risk of local recurrence, the patient's future function and life expectancy. A mass more than 5cm in diameter, a subfascial location and a recent increase in size are signs that should lead the physician to question whether the lesion is truly benign and to carry out diagnostic examinations. MRI is the gold standard imaging exam...
December 1, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29183875/navigating-chronic-pain-how-taking-a-few-wrong-turns-can-miss-sinister-pathology
#7
Jennifer Turnbull, Richard Dodds, Andy Wainwright, Athimalaipet Vaidyanathan Ramanan, Kate Wheeler
Bone sarcomas are rare in childhood, and their presentation can often mimic more benign complaints or chronic musculoskeletal pain. Ewing sarcomas in particular are often diagnosed after a significant delay from the onset of symptoms. At a population level, a long diagnostic delay is not necessarily associated with worse survival , as tumours that display slow growth also tend to be less aggressive. For any specific individual however, a delayed diagnosis can result in a larger tumour that is more difficult to treat...
November 28, 2017: Archives of Disease in Childhood. Education and Practice Edition
https://www.readbyqxmd.com/read/29180067/-sports-ultrasound-advantages-indications-and-limitations-in-upper-and-lower-limbs-musculoskeletal-disorders-review-article
#8
Naveed Baloch, Obada Hussein Hasan, Mir Muzamil Jessar, Soichi Hattori, Shin Yamada
Ultrasonography (US) is a safe and noninvasive imaging modality that is gaining popularity in different medical and surgical fields. Its introduction in musculoskeletal and sports medicine has taken this advanced subspecialty to a higher level. It has the advantage over other imaging techniques with regards to ease of use, availability, comfort and cost. Not to mention, in terms of safety profile, patients are not exposed to radiations, like in x-rays, and it can be performed on patients with metal or pacemaker implants, which are contraindicated in MRI...
November 26, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/29164166/juvenile-osteochondritis-dissecans-of-the-knee-does-magnetic-resonance-imaging-instability-correlate-with-the-need-for-surgical-intervention
#9
Simon Haeri Hendy, Darren de Sa, Kelly Ainsworth, Olufemi R Ayeni, Nicole Simunovic, Devin Peterson
Background: Several magnetic resonance imaging (MRI) classification systems have been developed to determine the degree of instability of juvenile osteochondritis dissecans (JOCD) lesions. Our current practice involves correlating the patients' symptoms with their MRI findings, but there are many cases in which this correlation is poor and results in incorrect classification of the stability of a JOCD lesion. Purpose: To determine whether certain MRI findings of JOCD instability are associated with the necessity for arthroscopic intervention to assess lesion stability...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29158244/post-traumatic-knee-mri-findings-and-associations-with-patient-trauma-and-clinical-characteristics-a-subgroup-analysis-in-primary-care-in-the-netherlands
#10
Kim van Oudenaarde, Nynke M Swart, Johan L Bloem, Sita Ma Bierma-Zeinstra, Paul R Algra, Bart Koes, Jan Verhaar, Rob Ghh Nelissen, Patrick Je Bindels, Pim Aj Luijsterburg, Monique Reijnierse
BACKGROUND: The added value of magnetic resonance imaging (MRI) in primary care is still being debated. A high diagnostic yield can be expected in young and active patients with post-traumatic knee complaints. AIM: To determine the frequency of MRI abnormalities in young and active patients (aged 18-45 years) and the associations with patient, trauma, and clinical characteristics. DESIGN AND SETTING: A subgroup analysis of 174 patients, aged 18-45 years with knee trauma of <6 months, allocated to MRI in a randomised controlled trial on the yield of MRI in primary care...
November 20, 2017: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/29144153/intravoxel-incoherent-motion-diffusion-weighted-mr-imaging-for-differentiation-of-benign-and-malignant-musculoskeletal-tumors-at-3-t
#11
Hyun Kyong Lim, Won-Hee Jee, Joon-Yong Jung, Mun Young Paek, InSeong Kim, Chan-Kwon Jung, Yang-Guk Chung
OBJECTIVE: To evaluate the intravoxel incoherent motion (IVIM) diffusion-weighted (DW) magnetic resonance imaging (MRI) for differentiating between benign and malignant musculoskeletal tumors at 3 T. METHODS: Sixty-five patients with treatment-naïve musculoskeletal tumors (47 malignant and 23 benign lesions) who underwent 3 T MRI including IVIM DW imaging were included. IVIM-derived parameters included pure diffusion coefficient (D), perfusion related incoherent microcirculation (D*, pseudodiffusion coefficient), and perfusion fraction (f)...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29143872/concomitant-hook-of-hamate-fractures-in-patients-with-scaphoid-fracture-more-common-than-you-might-think
#12
Ramin Mandegaran, Sam Gidwani, Ali Zavareh
OBJECTIVE: The scaphoid is the most commonly fractured carpal bone. The presence of a concomitant hook of hamate fracture is of particular relevance given that it is often occult on routine wrist/scaphoid radiographs and that hook of hamate fractures are prone to symptomatic non-union, resulting in chronic ulnar wrist pain. Prompt diagnosis and immobilisation/fixation may minimise such complications. Our study is aimed at assessing the frequency of concomitant hook of hamate fractures in patients with scaphoid fractures...
November 16, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29139051/subject-specific-finite-element-modelling-of-the-human-foot-complex-during-walking-sensitivity-analysis-of-material-properties-boundary-and-loading-conditions
#13
Mohammad Akrami, Zhihui Qian, Zhemin Zou, David Howard, Chris J Nester, Lei Ren
The objective of this study was to develop and validate a subject-specific framework for modelling the human foot. This was achieved by integrating medical image-based finite element modelling, individualised multi-body musculoskeletal modelling and 3D gait measurements. A 3D ankle-foot finite element model comprising all major foot structures was constructed based on MRI of one individual. A multi-body musculoskeletal model and 3D gait measurements for the same subject were used to define loading and boundary conditions...
November 14, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/29127246/non-oncologic-applications-of-pet-ct-and-pet-mr-in-musculoskeletal-orthopedic-and-rheumatologic-imaging-general-considerations-techniques-and-radiopharmaceuticals
#14
Ali Gholamrezanezhad, Kyle Basques, Ali Batouli, Mojtaba Olyaie, George Matcuk, Abass Alavi, Hossein Jadvar
Positron Emission Tomography (PET) is often underutilized in the field of musculoskeletal imaging, with key reasons including the excellent performance of conventional musculoskeletal MRI, the limited spatial resolution of PET, and the lack of reimbursement for PET for non-oncologic musculoskeletal indications. However, with improvements in PET/CT and PET/MR imaging over the last decade as well as an 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 patients...
November 10, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/29113159/treatment-of-osteosarcoma-around-the-knee-in-skeletally-immature-patients
#15
Weitao Yao, Qiqing Cai, Jiaqiang Wang, Songtao Gao
Limb sparing surgery in growing young patients with malignant tumors is difficult as invasion of the physis by the tumor or surgical resection through the metaphysis may cause significant limb discrepancy following surgery. At present, hinged tumor prosthesis or biological reconstructions are the main methods following tumor resection in these patients. The aim of the present study was to assess different procedures for the treatment of osteosarcoma around knee joints in immature patients. A retrospective study of 56 patients (<15 years old, open physis) who had been treated for osteosarcoma around the knee joint between January 2007 and December 2015 was performed...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29112474/mri-evaluation-of-midtarsal-chopart-sprain-in-the-setting-of-acute-ankle-injury
#16
William R Walter, Anna Hirschmann, Erin F Alaia, Elisabeth R Garwood, Zehava S Rosenberg
OBJECTIVE: This study determined the frequency and MRI appearance of osseous and ligamentous injuries in midtarsal (Chopart) sprains and their association with ankle sprains after acute ankle injuries. Prospective diagnosis of and interobserver agreement regarding midtarsal injury among musculoskeletal radiologists were also assessed. SUBJECTS AND METHODS: Two cohorts with ankle MRIs were identified via a digital PACS search: patients who had undergone MRI within 8 weeks after ankle injury and control subjects who had not sustained ankle trauma...
November 7, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29106825/recurrent-de-novo-mutations-disturbing-the-gtp-gdp-binding-pocket-of-rab11b-cause-intellectual-disability-and-a-distinctive-brain-phenotype
#17
Ideke J C Lamers, Margot R F Reijnders, Hanka Venselaar, Alison Kraus, Sandra Jansen, Bert B A de Vries, Gunnar Houge, Gyri Aasland Gradek, Jieun Seo, Murim Choi, Jong-Hee Chae, Ineke van der Burgt, Rolph Pfundt, Stef J F Letteboer, Sylvia E C van Beersum, Simone Dusseljee, Han G Brunner, Dan Doherty, Tjitske Kleefstra, Ronald Roepman
The Rab GTPase family comprises ∼70 GTP-binding proteins, functioning in vesicle formation, transport and fusion. They are activated by a conformational change induced by GTP-binding, allowing interactions with downstream effectors. Here, we report five individuals with two recurrent de novo missense mutations in RAB11B; c.64G>A; p.Val22Met in three individuals and c.202G>A; p.Ala68Thr in two individuals. An overlapping neurodevelopmental phenotype, including severe intellectual disability with absent speech, epilepsy, and hypotonia was observed in all affected individuals...
October 23, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29101982/acr-appropriateness-criteria%C3%A2-imaging-after%C3%A2-total%C3%A2-knee-arthroplasty
#18
Mary G Hochman, Yulia V Melenevsky, Darlene F Metter, Catherine C Roberts, Jenny T Bencardino, R Carter Cassidy, Michael G Fox, Mark J Kransdorf, Douglas N Mintz, Nehal A Shah, Kirstin M Small, Stacy E Smith, Kathy M Tynus, Barbara N Weissman
Total knee arthroplasty (TKA) is the most commonly performed joint replacement procedure in the United States and annual demand for primary TKA is expected to grow by 673% by 2030. The first part provides an overview of imaging modalities (radiographs, CT, MRI, ultrasound, and various nuclear medicine studies) and discusses their usefulness in the imaging evaluation of TKA. The second part focuses on evidence-based imaging and imaging-guided intervention algorithms for the workup of TKA and its complications, including routine follow-up, component wear, periprosthetic infection, aseptic loosening, granulomas/osteolysis, conventional and rotational instability, periprosthetic fracture, patellar complications, and a variety of periprosthetic soft tissue abnormalities...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29092997/the-orthopaedic-manifestation-and-outcomes-of-methicillin-sensitive-staphylococcus-aureus-septicaemia
#19
D Makki, T Elgamal, P Evans, D Harvey, G Jackson, S Platt
AIMS: The aim of this paper was to present the clinical features of patients with musculoskeletal sources of methicillin-sensitive Staphylococcus aureus (MSSA) septicaemia. PATIENTS AND METHODS: A total of 137 patients presented with MSSA septicaemia between 2012 and 2015. The primary source of infection was musculoskeletal in 48 patients (35%). Musculoskeletal infection was considered the primary source of septicaemia when endocarditis and other obvious sources were excluded...
November 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/29081850/obstacles-to-reduction-in-infantile-developmental-dysplasia-of-the-hip
#20
K Studer, N Williams, P Studer, M Baker, A Glynn, B K Foster, P J Cundy
PURPOSE: Identification of anatomical structures that block -reduction in developmental dysplasia of the hip (DDH) is -important for the management of this challenging condition. Obstacles to reduction seen on arthrogram are well-known. However, despite the increasing use of MRI in the assessment of adequacy of reduction in DDH, the interpretation of MRI patho-anatomy is ill-defined with a lack of relevant literature to guide clinicians. METHOD: This is a retrospective analysis of the MRI of patients with DDH treated by closed reduction over a five-year period (between 2009 and 2014)...
October 1, 2017: Journal of Children's Orthopaedics
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