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Skeletal review

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https://www.readbyqxmd.com/read/28323791/obesity-is-associated-with-high-peri-operative-complications-among-surgically-treated-intertrochanteric-fracture-of-the-femur
#1
Harish Kempegowda, Raveesh Richard, Amrut Borade, Akhil Tawari, Graham Jove, Michael Suk, Abby Howenstein, Erik N Kubiak, Vanessa Rojas Sotomayor, Kenneth Koval, Frank A Liporace, Nirmal Tejwani, Daniel S Horwitz
OBJECTIVES: The purpose of this study was to document the complications among obese patients who underwent surgical fixation for intertrochanteric femur fractures and to compare with non-obese patients. DESIGN: Retrospective cohort study SETTING:: Four level I trauma centers. PATIENTS: 1078 intertrochanteric femur fracture patients INTERVENTIONS:: None MAIN OUTCOME MEASURES:: Patient and fracture characteristics, surgical duration, surgical delay intra-operative and post-operative complications, inpatient mortality and length of stay...
March 8, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28317080/the-critical-role-of-imaging-in-the-management-of-multiple-myeloma
#2
REVIEW
Shahzad Raza, Siyang Leng, Suzanne Lentzsch
Multiple myeloma (MM) is characterized by abnormal proliferation of plasma cells in the bone marrow leading to symptoms of anemia, renal failure, hypercalcemia, and bone lesions. Bone imaging is critical for the diagnosis, staging, assessment for the presence and extent of bone lesions, and initial treatment of MM. Skeletal survey is the preferred initial imaging modality due to its availability and low cost. However, it has poor sensitivity and patients with occult myeloma may escape detection, delaying their diagnosis and treatment...
March 20, 2017: Current Hematologic Malignancy Reports
https://www.readbyqxmd.com/read/28302360/consistent-screening-of-admitted-infants-with-head-injuries-reveals-high-rate-of-nonaccidental-trauma
#3
Paul T Kim, Jillian McCagg, Ashley Dundon, Zach Ziesler, Suzanne Moody, Richard A Falcone
PURPOSE: Implementation of a nonaccidental trauma (NAT) screening guideline for the evaluation of infants admitted with an unwitnessed head injury has eliminated screening disparities. This study sought to determine the overall NAT rate and key predictive factors using this guideline. METHODS: All infants screened via the guideline from 2008 to 2015 were retrospectively reviewed. The overall rate of NAT as determined by our child abuse team was determined. In addition, a logistic regression model was developed to evaluate potential predictors of increased risk of NAT...
March 11, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28301584/diagnostic-accuracy-and-added-value-of-dual-energy-subtraction-radiography-compared-to-standard-conventional-radiography-using-computed-tomography-as-standard-of-reference
#4
Katharina Martini, Marco Baessler, Stephan Baumueller, Thomas Frauenfelder
PURPOSE: To retrospectively evaluate diagnostic performance of dual-energy subtraction radiography (DESR) for interpretation of chest radiographs compared to conventional radiography (CR) using computed tomography (CT) as standard of reference. MATERIAL AND METHODS: A total of 199 patients (75 female, median age 67) were included in this institutional review board (IRB)-approved clinical trial. All patients were scanned in posteroanterior and lateral direction with dual-shot DE-technique...
2017: PloS One
https://www.readbyqxmd.com/read/28299386/high-rate-of-recurrent-patellar-dislocation-in-skeletally-immature-patients-a-long-term-population-based-study
#5
Thomas L Sanders, Ayoosh Pareek, Timothy E Hewett, Michael J Stuart, Diane L Dahm, Aaron J Krych
PURPOSE: Patellar dislocation can occur in isolation or be associated with chronic instability. The goals of this study are to describe the rate and factors associated with additional patellar instability events (ipsilateral recurrence and contralateral dislocation), as well as the development of patellofemoral arthritis in patients who are skeletally immature at the time of first patellar dislocation. METHODS: The study included a population-based cohort of 232 skeletally immature patients who experienced a first-time lateral patellar dislocation between 1990 and 2010...
March 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28299324/micrornas-and-cardiovascular-disease-in-diabetes-mellitus
#6
REVIEW
Yue Ding, Xue Sun, Peng-Fei Shan
Cardiovascular disease (CVD) is the major macrovascular complication of diabetes mellitus. Recently, although CVD morbidity and mortality have decreased as a result of comprehensive control of CVD risk factors, CVD remains the leading cause of death of patients with diabetes in many countries, indicating the potential underlying pathophysiological mechanisms. MicroRNAs are a class of noncoding, single-stranded RNA molecules that are involved in β-cell function, insulin secretion, insulin resistance, skeletal muscle, and adipose tissue and which play an important role in glucose homeostasis and the pathogenesis of diabetic complications...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28297312/anatomy-based-definition-of-point-a-utilizing-three-dimensional-volumetric-imaging-approach-for-high-dose-rate-hdr-intracavitary-brachytherapy-dose-prescription-when-treating-cervical-cancer-using-limited-resources
#7
Manish K Goyal, D V Rai, Than S Kehwar, Jayanand Manjhi, Bret H Heintz, Kathleen L Shide, Jerry L Barker
This study was designed to determine whether volumetric imaging could identify consistent alternative prescription methods to Manchester/point A when prescribing radiation dose in the treatment of cervical cancer using HDR intracavitary brachytherapy (ICBT). One hundred and twenty-five treatment plans of 25 patients treated for carcinoma of the cervix were reviewed retrospectively. Each patient received 5 fractions of HDR ICBT following initial cisplatin-based pelvic chemoradiation, and radiation dose was originally prescribed to point A (ICRU-38)...
November 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28294593/effect-of-vitamin-d-replacement-in-primary-hyperparathyroidism-with-concurrent-vitamin-d-deficiency-a-systematic-review-and-meta-analysis
#8
Huai Heng Loh, Lee Ling Lim, Anne Yee, Huai Seng Loh, Shireene R Vethakkan
INTRODUCTION: We conducted a meta-analysis to assess the effects of vitamin D replacement on biochemical and skeletal parameters in subjects with mild primary hyperparathyroidism (PHPT) and coexistent vitamin D deficiency. EVIDENCE ACQUISITION: A systematic search of all English-language medical literature published from 1980 till May 2016 using Pubmed, Embase and Ovid was performed. Nine observational studies were evaluated after fulfilling the inclusion and exclusion criteria...
March 14, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28294170/exploring-inter-organ-crosstalk-to-uncover-mechanisms-that-regulate-%C3%AE-cell-function-and-mass
#9
REVIEW
J Shirakawa, D F De Jesus, R N Kulkarni
Impaired β-cell function and insufficient β-cell mass compensation are twin pathogenic features that underlie type 2 diabetes (T2D). Current therapeutic strategies continue to evolve to improve treatment outcomes in different ethnic populations and include approaches to counter insulin resistance and improve β-cell function. Although the effects of insulin secretion on metabolic organs such as liver, skeletal muscle and adipose is directly relevant for improving glucose uptake and reduce hyperglycemia, the ability of pancreatic β-cells to crosstalk with multiple non-metabolic tissues is providing novel insights into potential opportunities for improving β-cell function and/or mass that could have beneficial effects in patients with diabetes...
March 15, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28293466/cadasil-ultrastructural-insights-into-the-morphology-of-granular-osmiophilic-material
#10
Teresa Lorenzi, Michele Ragno, Francesca Paolinelli, Clara Castellucci, Marina Scarpelli, Manrico Morroni
INTRODUCTION: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a hereditary systemic vascular disorder. Granular osmiophilic material (GOM) is its ultrastructural marker. We reviewed tissue biopsies from CADASIL patients to establish whether ultrastructural observations help clarify the pathogenic mechanism of CADASIL. Given the resemblance of the GOM deposits to the immunoglobulin deposits seen in glomerulonephritis and focal segmental glomerulosclerosis (FSGS), their morphologies were investigated and compared...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28293171/the-role-of-semaphorin-3a-in-bone-remodeling
#11
REVIEW
Zhenxia Li, Jin Hao, Xin Duan, Nan Wu, Zongke Zhou, Fan Yang, Juan Li, Zhihe Zhao, Shishu Huang
Bone remodeling occurs at the bone surface throughout adult life and associates bony quantity and quality. This process is a balance between the osteoblastic bone formation and osteoclastic bone resorption, which cross-talks together. Semaphorin 3A is a membrane-associated secreted protein and regarded as a diffusible axonal chemorepellent, which has been identified in the involvement of bone resorption and formation synchronously. However, the role of Semaphorin 3A in bone homeostasis and diseases remains elusive, in particular the association to osteoblasts and osteoclasts...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28290981/case-report-of-clinical-vignette-osteopetrosis
#12
John B Moore, Thanh D Hoang, Alfred F Shwayhat
INTRODUCTION: Osteopetrosis is a connective tissue disorder resulting from abnormally dense bone predisposing patients to fracture. The clinical pattern of fractures across time and space as well as suggestive radiographic findings usually raises diagnostic suspicion. Multiple genetic mutations resulting in dysfunctional osteoclasts have been implicated in the pathogenesis of osteopetrosis with variable inheritance patterns. In severe cases, usually inherited in an autosomal recessive pattern, the medullary cavity important in the production of normal blood cell progenitors is replaced by defective endochondral bone, leading to pancytopenia and consequential extramedullary hematopoiesis...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28290972/malignant-hyperthermia-susceptibility-and-fitness-for-duty
#13
Michael A Lee, Erin B McGlinch, Maria C McGlinch, John F Capacchione
INTRODUCTION: Malignant hyperthermia (MH) is an inherited hypermetabolic condition characterized by uncontrolled calcium release from the sarcoplasmic reticulum of skeletal muscle, usually from exposure to inhaled general anesthetics and/or the depolarizing neuromuscular blocking agent succinylcholine. Multiple case reports now reveal that crises may be precipitated by environmental factors such as exercise or high ambient temperatures. Common signs of an MH crisis include life-threatening hyperthermia, metabolic acidosis, muscle rigidity, and tachycardia...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28288674/cytochrome%C3%A2-p450-oxidoreductase-deficiency-caused-by-r457h-mutation-in-por-gene-in-chinese-case-report-and-literature-review
#14
Yang Bai, Jinhui Li, Xiaoli Wang
BACKGROUND: Cytochrome P450 oxidoreductase deficiency (PORD) is a rare disease exhibiting a variety of clinical manifestations. It can be difficult to differentiate with other diseases such as 21-hydroxylase deficiency (21-OHD), polycystic ovary syndrome (PCOS) and Antley-Bixler syndrome (ABS). Nearly 100 cases of PORD have been reported worldwide. However, the genetic characters and clinical management are still unclear, especially in China. CASE PRESENTATION: In this study, we report a 27-year-old female Chinese patient who first presented with amenorrhea and recurrence of large ovary cyst...
March 14, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28288078/idiopathic-genu-valgum-and-its-association-with-obesity-in-children-and-adolescents
#15
Janet L Walker, Pooya Hosseinzadeh, Hank White, Kevin Murr, Todd A Milbrandt, Vishwas J Talwalkar, Henry Iwinski, Ryan Muchow
BACKGROUND: Obesity as a cause of lower extremity deformity in children has been well established. This deformity is most often seen as tibia vara, however, at our institution we have observed more obese children and adolescents over age 7 years with excessive or progressive idiopathic genu valgum. Our hypothesis is that children with idiopathic genu valgum have high rates of obesity which impact the severity of their disease. METHODS: Retrospective review of existing data was performed on 66 consecutive children/112 limbs over age 7 years with idiopathic genu valgum, seen from 2010 to 2013...
March 10, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28287247/trunk-neural-crest-cells-formation-migration-and-beyond
#16
Guillermo A Vega-Lopez, Santiago Cerrizuela, Manuel J Aybar
Neural crest cells (NCCs) are a multipotent, migratory cell population that generates an astonishingly diverse array of cell types during vertebrate development. The trunk neural crest has long been considered of particular significance. First, it has been held that the trunk neural crest has a morphogenetic role, acting to coordinate the development of the peripheral nervous system, secretory cells of the endocrine system and pigment cells of the skin. Second, the trunk neural crest additionally has skeletal potential...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28286625/radiographic-evaluation-of-common-pediatric-elbow-injuries
#17
REVIEW
Steven F DeFroda, Heather Hansen, Joseph A Gil, Ashraf H Hawari, Aristides I Cruz
Normal variations in anatomy in the skeletally immature patient may be mistaken for fracture or injury due to the presence of secondary centers of ossification. Variations in imaging exist from patient to patient based on sex, age, and may even vary from one extremity to the other on the same patient. Despite differences in the appearance of the bony anatomy of the elbow there are certain landmarks and relationships, which can help, distinguish normal from abnormal. We review common radiographic parameters and pitfalls associated in the evaluation of pediatric elbow imaging...
February 20, 2017: Orthopedic Reviews
https://www.readbyqxmd.com/read/28286298/the-effects-of-parathyroid-hormone-peptides-on-the-peripheral-skeleton-of-postmenopausal-women-a-systematic-review
#18
REVIEW
Louis M Metcalf, Terry J Aspray, Eugene V McCloskey
Given current developments in anabolic therapy for bone, we wished to document the effects of the only currently available anabolic therapy, parathyroid hormone (PTH) peptides, on the peripheral skeleton of postmenopausal women. We undertook a systematic review of English articles using MEDLINE, Scopus and the Cochrane Controlled Trials Register (final update 28th March 2016). Additional studies were identified through searches of bibliographies. Studies included those comparing PTH peptides with placebo, with anti-osteoporotic treatments and in combination therapies...
March 9, 2017: Bone
https://www.readbyqxmd.com/read/28286114/mechanism-of-deoxynivalenol-effects-on-the-reproductive-system-and-fetus-malformation-current-status-and-future-challenges
#19
REVIEW
Miao Yu, Liangkai Chen, Zhao Peng, Andreas K Nüssler, Qinghua Wu, Liegang Liu, Wei Yang
Deoxynivalenol (DON) is a toxic fungal secondary metabolite produced by molds of the Fusarium genus, and it is known to cause a spectrum of diseases both in humans and animals, such as emesis, diarrhea, anorexia, immunotoxicity, hematological disorders, impairment of maternal reproduction, and fetal development. The recently revealed teratogenic potential of DON has received much attention. In various animal models, it has been shown that DON led to skeletal deformities of the fetus. However, the underlying mechanisms are not yet fully understood, and toxicological data are also scarce...
March 7, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28284391/neuromuscular-manifestations-in-mitochondrial-diseases-in-children
#20
Andrés Nascimento, Carlos Ortez, Cristina Jou, Mar O'Callaghan, Federico Ramos, Àngels Garcia-Cazorla
Mitochondrial diseases exhibit significant clinical and genetic heterogeneity. Mitochondria are highly dynamic organelles that are the major contributor of adenosine triphosphate, through oxidative phosphorylation. These disorders may be developed at any age, with isolated or multiple system involvement, and in any pattern of inheritance. Defects in the mitochondrial respiratory chain impair energy production and almost invariably involve skeletal muscle and peripheral nerves, causing exercise intolerance, cramps, recurrent myoglobinuria, or fixed weakness, which often affects extraocular muscles and results in droopy eyelids (ptosis), progressive external ophthalmoplegia, peripheral ataxia, and peripheral polyneuropathy...
November 2016: Seminars in Pediatric Neurology
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