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https://www.readbyqxmd.com/read/28631607/one-year-in-review-2017-ultrasound-in-crystal-arthritis
#1
Esperanza Naredo, Annamaria Iagnocco
Musculoskeletal ultrasound (MSUS) has become a relevant part of rheumatology practice and research. This imaging modality substantially allows us to optimise the management of inflammatory, degenerative and crystal-related musculoskeletal diseases. MSUS is a valuable point-of-care tool to accurately assess intra-articular and periarticular abnormalities involved in rheumatic diseases. Furthermore, MSUS is a bedside aid for guiding accurate and safe musculoskeletal diagnostic aspirations and therapeutic injections...
May 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28628411/sports-and-the-growing-musculoskeletal-system-sports-imaging-series
#2
Jie C Nguyen, Scott E Sheehan, Kirkland W Davis, Kara G Gill
Increased youth participation in sports has resulted in increased injury tolls due to shifts toward participation in competitive sports at earlier ages, increased training intensity and competition schedules, as well as specialization into one sport. The physiology of the growing musculoskeletal system makes the growing athlete particularly vulnerable to specific types of injuries. Radiologists must understand the differences between pediatric and adult athletes to recognize the particular injuries to which these young athletes are prone...
July 2017: Radiology
https://www.readbyqxmd.com/read/28623421/comparison-of-dual-energy-ct-ultrasound-and-surface-measurement-for-assessing-tophus-dissolution-during-rapid-urate-debulking
#3
Dodji V Modjinou, Svetlana Krasnokutsky, Soterios Gyftopoulos, Virginia C Pike, Elaine Karis, Robert T Keenan, Kristen Lee, Daria B Crittenden, Jonathan Samuels, Michael H Pillinger
Tophaceous gout is painful and impairs quality of life. The optimal modality for assessing tophus resolution in response to urate-lowering treatment remains poorly defined. Using pegloticase as a model system for resolving tophi, we compared multiple imaging and physical diagnostic strategies for assessing tophus resolution. A 32-year-old subject with chronic refractory tophaceous gout was enrolled and received 6 months of pegloticase treatment. Measurements of tophi using vernier calipers (monthly), photographs and musculoskeletal ultrasound (MSK-US; every 3 months), and dual-energy CT (DECT) were compared...
June 16, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28621254/use-of-microcomputed-tomography-to-measure-the-relaxin-induced-expansion-of-intrapubic-ligaments-in-mice
#4
Heather A Zimmerman, Richard P Kennan, Chunlian Zhang, Kashmira Shah, Douglas G Johns, Joseph J Lynch, Maya Dajee
Relaxin is a 6-kDa peptide in the insulin superfamily of hormones. In addition to its effects on reproductive and musculoskeletal ligaments, relaxin has demonstrated beneficial effects on cardiac, renal, and vascular systems in preclinical models. The mouse intrapubic ligament ex vivo bioassay is the current standard for measuring in vivo relaxin bioactivity. However, this bioassay necessitates euthanasia and dissection of large cohorts to measure the intrapubic ligament at specified time points. We hypothesized that μCT imaging could be used to reduce the number of animals necessary for the intrapubic ligament bioassay by enabling a single animal to be followed longitudinally throughout the study rather than euthanizing different cohorts at established time points...
June 15, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28616021/mri-analysis-and-clinical-significance-of-lower-extremity-muscle-cross-sectional-area-after-spinal-cord-injury
#5
REVIEW
Robert M Lester, Kori Johnson, Refka E Khalil, Rehan Khan, Ashraf S Gorgey
Shortly after spinal cord injury (SCI), the musculoskeletal system undergoes detrimental changes in size and composition, predominantly below the level of injury. The loss of muscle size and strength, along with increased immobility, predisposes persons with SCI to rapid and severe loss in bone mineral density and other health related consequences. Previous studies have highlighted the significance of measuring thigh muscle cross-sectional area, however, measuring the size and composition of muscles of the lower leg may provide insights on how to decrease the risk of various comorbidities...
May 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28609182/infrared-thermography-reveals-effect-of-working-posture-on-skin-temperature-in-office-workers
#6
Roope Lasanen, Markus K H Malo, Olavi Airaksinen, Jari Karhu, Juha Töyräs, Petro Julkunen
INTRODUCTION: Musculoskeletal symptoms related to using traditional computer workstations are common. To improve ergonomics of workstations quantitative methods for measuring muscle stress and strain are needed. We hypothesize that infrared thermography (IRT) is suited for this purpose. METHODS: This hypothesis was evaluated by estimating muscle activity in upright and traditional working postures with IRT and surface electromyography (sEMG). IRT and sEMG measurements were conducted in 14 female participants with both working postures...
June 13, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28608002/value-of-ultrasonographic-evaluation-for-soft-tissue-lesions-focus-on-incidentally-detected-lesions-on-ct-mri
#7
REVIEW
Sung Bin Park, Byeong Seong Kang
Soft-tissue lesions of the musculoskeletal system are commonly encountered in clinical practice and often manifest as palpable lesions. Moreover, the increasing use of cross-sectional imaging such as CT or MRI has resulted in the incidental detection of many soft-tissue lesions. Ultrasonography remains the primary imaging investigation for soft-tissue lesions. It has been shown to be helpful in depicting processes involving the soft-tissue lesions on cross-sectional imaging. This article describes the ultrasonographic findings of the most frequently incidentally detected benign and malignant soft-tissue lesions on cross-sectional imaging and suggests the characteristics of such diseases, focusing on the ultrasonographic features that allow accurate diagnosis...
June 12, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28607814/chiari-i-malformation-and-syringomyelia-in-mucopolysaccharidosis-type-i-hurler-syndrome-treated-with-posterior-fossa-decompression-case-report-and-review-of-the-literature
#8
Vyacheslav Makler, Christina L Goldstein, Daniel Hoernschemeyer, Tomoko Tanaka
BACKGROUND: Hurler Syndrome is the most severe phenotype of mucopolysaccharidosis type I. With bone marrow transplant and enzyme replacement therapy, the life expectancy of a child with Hurler syndrome has been extended, predisposing them to multiple musculoskeletal issues most commonly involving the spine. CASE DESCRIPTION: This is the case report of a 6-year-old male with Hurler syndrome who was diagnosed with Chiari I malformation and cervicothoracic syringomyelia on a preoperative magnetic resonance imaging (MRI) for his thoracolumbar kyphosis...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28601180/musculoskeletal-traumatic-injuries-in-children-characteristic-imaging-findings-and-mimickers
#9
REVIEW
Victor M Ho-Fung, Matthew A Zapala, Edward Y Lee
Musculoskeletal traumatic injuries in children demonstrate characteristic imaging findings. The physis is the most susceptible structure to traumatic injury. The periosteum in children plays a key role in rapid bone healing and stability. The main complications of fractures in children are premature physeal closure, potential limb length discrepancy, and angular deformities. Understanding the normal bone growth, healing, and complications of pediatric fractures is crucial for appropriate imaging diagnosis. This article discusses currently available imaging modalities with up-to-date techniques, underlying mechanisms, and characteristic imaging findings of musculoskeletal traumatic injuries and mimickers encountered in daily clinical practice...
July 2017: Radiologic Clinics of North America
https://www.readbyqxmd.com/read/28596974/magnetic-resonance-imaging-appearance-of-the-hip-musculature-after-arthroscopic-labral-level-iliopsoas-tenotomies
#10
Brian E Walczak, Donna G Blankenbaker, Michael R Tuite, James S Keene
BACKGROUND: Iliopsoas (IP) muscle atrophy is a known consequence of open IP tenotomy, but the severity of IP muscle atrophy that occurs after arthroscopic labral-level IP tenotomies has not been documented. PURPOSE: To document the severity of muscle atrophy that occurs in the iliacus, psoas, and adjacent hip musculature after arthroscopic labral-level IP tenotomy. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Twenty-eight patients who had magnetic resonance arthrograms (MRAs) obtained prior to and 3 months to 5 years after arthroscopic labral-level IP tenotomies are the basis of this report...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28593101/dry-needling-increases-muscle-thickness-in-a-subject-with-persistent-muscle-dysfunction-a-case-report
#11
Kevin M Cross, Michael McMurray
BACKGROUND AND PURPOSE: Muscle dysfunction is very common following musculoskeletal injury. There is very little evidence to suggest that muscle function may be positively impacted by soft tissue interventions, such as dry needling. The purpose of this case report is to describe the immediate effect of dry needling on muscle thickness in a subject after shoulder surgery. CASE DESCRIPTION: A 22 year-old competitive gymnast presented seven months post shoulder surgery with significant impairments and functional limitations...
June 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28590821/t2-mapping-of-the-sacroiliac-joints-with-3-t-mri-a-preliminary-study
#12
Guillaume Lefebvre, Antonin Bergère, Mazen El Rafei, Alain Duhamel, Pedro Teixeira, Anne Cotten
OBJECTIVE: The objective of this study was to assess the feasibility of T2 relaxation time measurements of the sacroiliac joints. SUBJECTS AND METHODS: The sacroiliac joints of 40 patients were imaged by 3-T MRI using an oblique axial multislice multiecho spin-echo T2-weighted sequence. Manual plotting and automatic subdivision of ROIs allowed us to obtain T2 values for up to 48 different areas per patient (posterior and anterior parts, sacral, intermediate, and iliac parts)...
June 7, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28585058/pictorial-review-of-18-f-fdg-pet-ct-findings-in-musculoskeletal-lesions
#13
Mana Ishibashi, Yoshio Tanabe, Shinya Fujii, Toshihide Ogawa
We herein reviewed (18)F-fluoro-2-deoxyglucose ((18)F-FDG) positron emission tomography (PET)/computed tomography (CT) findings in a number of musculoskeletal lesions including malignant tumors, benign tumors, and tumor-like lesions with correlations to other radiographic imaging modalities, and described the diversity of the (18)F-FDG PET/CT findings of this entity. Malignant primary musculoskeletal tumors are typically (18)F-FDG avid, whereas low-grade malignant tumors show mild uptake. Benign musculoskeletal tumors generally show a faint uptake of (18)F-FDG, and tumor-like conditions also display various uptake patterns of (18)F-FDG...
June 5, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28583640/the-role-of-ultrasound-guided-fine-needle-aspiration-biopsy-in-musculoskeletal-diseases
#14
REVIEW
Marco Sperandeo, Francesca Maria Trovato, Nadia Melillo, Lucia Dimitri, Giuseppe Musumeci, Giuseppe Guglielmi
Ultrasonography (US) is a readily available non-invasive tool useful for the detection of musculoskeletal and soft tissue masses. Although X-Ray is often the first imaging study for evaluating both bone and soft tissue lesions, and magnetic resonance imaging and computed tomography are mandatory in lesions staging, US is increasingly used for the early assessment of musculoskeletal and soft-tissue masses and for guiding procedures and biopsies. Surgical biopsy or fine needle aspiration biopsy (FNAB) is needed to ascertain the nature of any lesion...
May 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28583277/dual-time-point-18-f-fdg-pet-and-pet-ct-for-differentiating-benign-from-malignant-musculoskeletal-lesions-opportunities-and-limitations
#15
REVIEW
Rahul V Parghane, Sandip Basu
In this review, we summarize the false-positive and false-negative results of standard (18)F-FDG-PET/CT in characterizing musculoskeletal lesions and discussed the added value and limitations of dual-time point imaging (DTPI) and delayed imaging in differentiating malignant from benign musculoskeletal lesions, based on review of the peer-reviewed literature. The quantitative and semiquantitative parameters adopted for DTPI are standardized uptake value (mainly maximum standardized uptake value [SUVmax]) and retention index (RI), calculated as RI (%) = 100% × (SUV [maxD-Delayed] - SUV [maxE-Early])/SUV [maxE-Early], although the criteria and cutoff for diagnosing malignancy in studies have varied considerably...
July 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28582272/ultrasound-guided-steroid-injection-of-the-pisotriquetral-joint-a-multidisciplinary-effort
#16
Steven W Brose, Janel Montfort, Kenneth J Gustafson, Ionica Mittebrun, Samantha Gauriloff, Mary Mosher, Dennis J Bourbeau
From the perspective of a multidisciplinary team, the authors describe the first reported use of ultrasound guidance for steroid injection into the pisotriquetral joint to relieve wrist pain of a person with spinal cord injury undergoing acute inpatient rehabilitation. Musculoskeletal ultrasound guidance was used to improve the accuracy of a corticosteroid injection of the pisotriquetral joint and the basal thumb in a 70-year-old man with paraplegia experiencing multifocal degenerative wrist pain. There was no bleeding or bruising after the injections, and the patient reported complete pain resolution 1 wk after the injections, which continued for over 1 yr...
June 2, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28580838/a-diagnostic-pathologist-s-guide-to-carpal-disease-in-racehorses
#17
Julie B Engiles, Holly Stewart, Jennifer Janes, Laura A Kennedy
As a pathologist, postmortem examination of the equine carpus can be daunting. The anatomy is complex and oftentimes, small or subtle lesions have significant impact on lameness and secondary lesions such as catastrophic musculoskeletal fractures and other injuries. In performance horses, particularly racehorses, the carpus is a common site of injury and source of lameness. Given the predisposition of racehorses to developing carpal disease, familiarity with clinically relevant anatomy and common developmental, degenerative, traumatic, and inflammatory processes are imperative for thorough postmortem examination...
June 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28580400/replacement-of-daily-load-attenuates-but-does-not-prevent-changes-to-the-musculoskeletal-system-during-bed-rest
#18
Peter R Cavanagh, Andrea J Rice, Sara C Novotny, Kerim O Genc, Ricki K Englehaupt, Tammy M Owings, Bryan Comstock, Tamre Cardoso, Hakan Ilaslan, Scott M Smith, Angelo A Licata
The dose-response effects of exercise in reduced gravity on musculoskeletal health have not been well documented. It is not known whether or not individualized exercise prescriptions can be effective in preventing the substantial loss in bone mineral density and muscle function that have been observed in space flight and in bed rest. In this study, typical daily loads to the lower extremities were quantified in free-living subjects who were then randomly assigned to control or exercise groups. Subjects were confined to 6-degree head-down bed rest for 84 days...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28573034/a-technical-note-on-variable-inter-frame-interval-as-a-cause-of-non-physiological-experimental-artefacts-in-ultrasound
#19
D Miguez, E F Hodson-Tole, I Loram, P J Harding
Ultrasound (US) imaging is a well-recognized technique for the study of static tissues but its suitability for studying tissue dynamics depends upon accurate frame time information, which may not always be available to users. Here we present methods to quantify the inter-frame interval (IFI) variability, and evaluate different procedures for collecting temporal information from two US-imaging devices. The devices tested exhibited variable IFIs that could only be confirmed by direct measures of timing signals, available by means of electrical signals (triggers) and/or temporal information contained in the software used for the US data collection...
May 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28572462/development-and-reliability-of-a-preliminary-foot-osteoarthritis-magnetic-resonance-imaging-score
#20
Jill Halstead, Carmen Martín-Hervás, Elizabeth M A Hensor, Dennis McGonagle, Anne-Maree Keenan, Anthony C Redmond, Philip G Conaghan
OBJECTIVE: Foot osteoarthritis (OA) is very common but underinvestigated musculoskeletal condition and there is little consensus as to common magnetic resonance imaging (MRI) features. The aim of this study was to develop a preliminary foot OA MRI score (FOAMRIS) and evaluate its reliability. METHODS: This preliminary semiquantitative score included the hindfoot, midfoot, and metatarsophalangeal joints. Joints were scored for joint space narrowing (JSN; 0-3), osteophytes (0-3), joint effusion/synovitis, and bone cysts (present/absent)...
June 1, 2017: Journal of Rheumatology
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