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Osteomyelitis, septic arthritis

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https://www.readbyqxmd.com/read/27904045/puerarin-prevents-lps-induced-osteoclast-formation-and-bone-loss-via-inhibition-of-akt-activation
#1
Yun Zhang, Ming Yan, Qing-Feng Yu, Pei-Fan Yang, Hai-Dong Zhang, Yong-Hong Sun, Zhi-Fen Zhang, Yun-Feng Gao
Osteolysis induced by chronic Gram-negative bacterial infection underlies many bone diseases such as osteomyelitis, septic arthritis, and periodontitis. Drugs that inhibit lipopolysaccharide (LPS)-induced osteolysis are critically needed for the prevention of bone destruction in infective bone diseases. In this study, we assessed the effect of puerarin, a natural isoflavone isolated from Pueraria lobata OHWI root, on LPS-induced osteoclastogenesis and bone loss. Our in vitro study showed that puerarin significantly inhibited LPS-induced osteoclast differentiation from osteoclast precursor RAW264...
2016: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27901071/staphylococcus-aureus-dependent-septic-arthritis-in-murine-knee-joints-local-immune-response-and-beneficial-effects-of-vaccination
#2
Alessia Corrado, Paolo Donato, Silvia Maccari, Raffaella Cecchi, Tiziana Spadafina, Letizia Arcidiacono, Simona Tavarini, Chiara Sammicheli, Donatello Laera, Andrea Guido Oreste Manetti, Paolo Ruggiero, Bruno Galletti, Sandra Nuti, Ennio De Gregorio, Sylvie Bertholet, Anja Seubert, Fabio Bagnoli, Giuliano Bensi, Emiliano Chiarot
Staphylococcus aureus is the major cause of human septic arthritis and osteomyelitis, which deserve special attention due to their rapid evolution and resistance to treatment. The progression of the disease depends on both bacterial presence in situ and uncontrolled disruptive immune response, which is responsible for chronic disease. Articular and bone infections are often the result of blood bacteremia, with the knees and hips being the most frequently infected joints showing the worst clinical outcome. We report the development of a hematogenous model of septic arthritis in murine knees, which progresses from an acute to a chronic phase, similarly to what occurs in humans...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27888847/mr-imaging-of-the-diabetic-foot
#3
REVIEW
Eoghan McCarthy, William B Morrison, Adam C Zoga
Abnormalities of the peripheral nervous, vascular, and immune systems contribute to the development of numerous foot and ankle pathologies in the diabetic population. Although radiographs remain the most practical first-line imaging tool, magnetic resonance (MR) is the tertiary imaging modality of choice, allowing for optimal assessment of bone and soft tissue abnormalities. MR allows for the accurate distinction between osteomyelitis/septic arthritis and neuropathic osteoarthropathy. Furthermore, it provides an excellent presurgical anatomic road map of involved tissues and devitalized skin to ensure successful limited amputations when required...
February 2017: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/27870814/the-contemporary-microbiology-and-rates-of-concomitant-osteomyelitis-in-acute-septic-arthritis
#4
Jessica Branson, Jesus G Vallejo, Anthony R Flores, Kristina G Hulten, Edward O Mason, Sheldon L Kaplan, J Chase McNeil
BACKGROUND: Septic arthritis (SA) and acute osteomyelitis (AO) are among the most common serious bacterial infections of childhood. Knowledge of the microbiology of SA is critical to treatment. Awareness of the presence of attendant AO is also important to guide clinical management. We sought to describe the current microbiology of SA in children as well as describe clinical features associated with coexisting AO. MATERIALS AND METHODS: Patients with SA were identified from the infectious diseases consult service records from 2010-2014...
November 18, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27867536/life-threatening-mrsa-sepsis-with-bilateral-pneumonia-osteomyelitis-and-septic-arthritis-of-the-knee-in-a-previously-healthy-13-year-old-boy-a-case-report
#5
Nina Hardgrib, Michala Wang, Anne Grethe Jurik, Klaus K Petersen
The incidence and severity of methicillin resistant Staphylococcus aureus (MRSA) infections are increasing and cause high mortality and morbidity. We describe the first pediatric case in Scandinavia with Panton-Valentine leucocidin (PVL) positive MRSA septicemia who developed bilateral pneumonia, arthritis of the knee, and osteomyelitis of the tibia. Radiological investigation and interpretation directed the treatment, especially the surgical debridement, and combined with clinical and biochemical findings lead to close interdisciplinary treatment with frequent surgical interventions and antimicrobial combination therapy...
October 2016: Acta Radiologica Open
https://www.readbyqxmd.com/read/27865316/soft-tissue-reconstruction-pyramid-for-the-diabetic-charcot-foot
#6
REVIEW
Claire M Capobianco, Thomas Zgonis
Foot and ankle ulcerations in patients with diabetic Charcot neuroarthropathy (DCN) occur frequently and can be challenging to address surgically when conservative care fails. Patients with acute or chronic diabetic foot ulcers (DFU) are at continued risk for development of osteomyelitis, septic arthritis, gas gangrene, and potential lower extremity amputation. Concurrent vasculopathy and peripheral neuropathy as well as uncontrolled medical comorbidities complicate the treatment approach. In addition, pathomechanical forces left untreated may contribute to DFU recurrence in this patient population...
January 2017: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/27768833/the-tale-of-two-thumbs-a-dog-and-a-wooden-table
#7
Sumeja Zahirovic, Faizah Siddique
A 55 year-old African American man presented to the Emergency Room with acute-onset fevers, chills, and bilateral thumb pain, swelling, and redness. MRI revealed extensive cellulitis involving bilateral hands and wrists, along with fluid collection and carpal bone erosion on the left. Given concerns for septic arthritis and osteomyelitis, patient underwent surgical debridement revealing an abscess in the wrist without osteomyelitis. Blood cultures grew Pasteurella multocida. Subsequently, patient noted two pet dogs at home, but no history of bites...
October 21, 2016: Arthritis Care & Research
https://www.readbyqxmd.com/read/27753184/spinal-infections-in-older-people-an-analysis-of-demographics-presenting-features-microbiology-and-outcomes
#8
Sanka Amadoru, Kwang Lim, Mark Tacey, Craig Aboltins
AIMS: To explore differences in presentation and outcomes between younger and older patients with bacterial spinal infections. METHODS: Clinical, microbiological and radiological information was collected for patients at a single metropolitan hospital with spinal infections (spondylodiscitis, vertebral osteomyelitis, septic discitis, facet joint septic arthritis, and spinal epidural abscess) between January 2008 and January 2015. Patients were excluded if under 18 years of age, or if clinical and imaging findings were inconsistent with the diagnosis...
October 18, 2016: Internal Medicine Journal
https://www.readbyqxmd.com/read/27714987/in-vitro-characterization-of-biofilms-formed-by-kingella-kingae
#9
Jeffrey B Kaplan, Vandana Sampathkumar, Meriem Bendaoud, Alexander K Giannakakis, Edward T Lally, Nataliya V Balashova
The Gram-negative bacterium Kingella kingae is part of the normal oropharyngeal mucosal flora of children under four years old. K. kingae can enter the submucosa and cause infections of the skeletal system in children including septic arthritis and osteomyelitis. The organism is also associated with infective endocarditis in children and adults. Although biofilm formation has been coupled with pharyngeal colonization, osteoarticular infections, and infective endocarditis, no studies have investigated biofilm formation in K...
October 7, 2016: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/27703934/a-case-of-septic-arthritis-of-shoulder-presenting-as-stiffness-of-the-shoulder
#10
Senthil Nathan Sambandam, Mukesh Atturu
INTRODUCTION: Septic arthritis of the shoulder is uncommon in adults. It is a surgical emergency as joint destruction occurs rapidly and can lead to significant morbidity and mortality. Accurate diagnosis can be particularly challenging in patients with underlying liver disease. MRI is a useful adjunct in early detection of atypical causes of shoulder pain. CASE REPORT: A 43 years old male came to our outpatient department with complaints of pain and stiffness of his left shoulder...
April 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/27663465/eikenella-corrodens-bone-and-hip-joint-infection-a-case-report-and-literature-review
#11
T Tricard, L Bund, A Alhefzi, J-P Lemoine, L Schneider, C Karger, J-M Clavert, P Gicquel
: Eikenella corrodens (EC) is a human commensal microorganism of the mouth flora. This bacterium is rarely reported in bone and joint infections in children, but the consequences on the joint function can be devastating and irreversible. We report the case of septic arthritis of the hip following an oral wound in a 12-year-old boy. The progression of the condition was favorable with no complications or pain observed after antibiotic treatment. Clinical and radiological examinations showed a satisfactory outcome at 6 months with no sign of recurrence or complication (growth disorder)...
September 20, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27639784/unusual-case-of-paediatric-septic-arthritis-of-the-lumbar-facet-joints-due-to-kingella-kingae
#12
M Le Hanneur, C Vidal, C Mallet, K Mazda, B Ilharreborde
A 32-month-old boy presented with febrile limping that had developed over 6days, associated with right lumbosacral inflammatory swelling. Magnetic resonance imaging (MRI) showed joint effusion of the right L5-S1 zygapophyseal joint, complicated by destructive osteomyelitis of the L5 articular process and paraspinal abscess. Surgery was decided to evacuate the fluid accumulation and rule out differential diagnoses. The diagnosis of septic arthritis of the facet joint was confirmed intraoperatively; real-time quantitative PCR analysis identified Kingella kingae...
September 14, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27629994/clinical-features-and-treatment-outcomes-of-septic-arthritis-due-to-mycobacterium-massiliense-associated-with-intra-articular-injection-a-case-report
#13
Haekyung Lee, Dohui Hwang, Minchul Jeon, Eunjung Lee, Taehyong Kim, Shi Nae Yu, Yongbeom Kim, Byung-Ill Lee
BACKGROUND: There are increasing reports on nosocomial Mycobacterium massiliense infection, but septic arthritis and osteomyelitis because of that microorganism is rare. This report focuses on the clinical aspects of M. massiliense arthritis outbreak concurrent with soft tissue infection. CASE PRESENTATION: An outbreak of septic arthritis among patients who had been injected at a single clinic occurred in South Korea between April and September 2012. This may be associated with repeated injection of triamcinolone contaminated with M...
2016: BMC Research Notes
https://www.readbyqxmd.com/read/27603195/femoral-neck-aspiration-aids-in-the-diagnosis-of-osteomyelitis-in-children-with-septic-hip
#14
Jedidiah E Schlung, Tracey P Bastrom, Joanna H Roocroft, Peter O Newton, Scott J Mubarak, Vidyadhar V Upasani
BACKGROUND: The role of femoral aspiration (FA) in the treatment of septic arthritis of the hip is controversial. The purpose of this study was to determine if FA conducted concomitantly with irrigation and debridement (I&D) of the septic hip aids in microorganism and osteomyelitis identification and alters the treatment plan, or if the risks of the procedure outweigh its potential benefit. We also compare preoperative magnetic resonance imaging (MRI) with FA for diagnosis of osteomyelitis cooccurring with septic arthritis...
September 3, 2016: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/27602916/septic-shoulder-presenting-as-a-shoulder-dislocation-in-the-pediatric-patient-a-case-report
#15
Kathleen J Maguire, Norman Y Otsuka
: Shoulder dislocation is relatively uncommon in the younger pediatric population. Because of the relative strength of the surrounding soft tissue structures of the shoulder compared with the proximal humeral physis, subluxation or dislocation resulting from a traumatic event or application of force is rare and instead a proximal humeral physeal injury occurs. Case presentation - We present a 5-year-old male who presented to the office with post-traumatic left shoulder pain for about 1 week...
September 3, 2016: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/27587534/single-stage-treatment-of-chronic-osteomyelitis-with-a-new-absorbable-gentamicin-loaded-calcium-sulphate-hydroxyapatite-biocomposite-a-prospective-series-of-100-cases
#16
M A McNally, J Y Ferguson, A C K Lau, M Diefenbeck, M Scarborough, A J Ramsden, B L Atkins
AIMS: Chronic osteomyelitis may recur if dead space management, after excision of infected bone, is inadequate. This study describes the results of a strategy for the management of deep bone infection and evaluates a new antibiotic-loaded biocomposite in the eradication of infection from bone defects. PATIENTS AND METHODS: We report a prospective study of 100 patients with chronic osteomyelitis, in 105 bones. Osteomyelitis followed injury or surgery in 81 patients...
September 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27517024/septic-arthritis-and-arthropathy-of-the-rotator-cuff-remember-this-association
#17
Danilo Sobreira, Neydson de Souza, José Inácio de Almeida, Alberto de Castro Pochini, Carlos Vicente Andreoli, Benno Ejnisman
OBJECTIVE: To describe occurrences of septic glenohumeral arthritis among patients with arthropathy of the rotator cuff, and to highlight the importance of correct diagnosis and surgical procedures. METHODOLOGY: Eight surgical drains were installed in seven patients with glenohumeral pyoarthritis. All the patients presented arthropathy of the rotator cuff (four males and three females). Six patients presented pyoarthritis in the dominant shoulder. The age range was from 53 to 93 years (mean: 74 years)...
July 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/27492554/icariine-restores-lps-induced-bone-loss-by-downregulating-mir-34c-level
#18
Jian Liu, Danqing Li, Xuying Sun, Yuting Wang, Qiangbing Xiao, Anmin Chen
Bacteria-induced inflammatory responses cause excessive bone resorption in chronic inflammatory diseases such as septic arthritis, osteomyelitis, and orthopedic implant failure. Icariine has been reported to facilitate the bone healing and reduce the occurrence of osteoporosis in clinical, moreover, laboratory studies which have proved that Icariine promotes the proliferation and differentiation of osteoblasts in vitro. The present study aimed to evaluate the effects of Icariine on lipopolysaccharide (LPS)-induced bone loss via an osteogenic-in vitro model and to elucidate the underlying molecular mechanisms...
October 2016: Inflammation
https://www.readbyqxmd.com/read/27466008/update-in-pediatric-musculoskeletal-infections-when-it-is-when-it-isn-t-and-what-to-do
#19
Alexandre Arkader, Christopher Brusalis, William C Warner, James H Conway, Kenneth Noonan
Musculoskeletal infections, including osteomyelitis, septic arthritis, and pyomyositis, are a substantial cause of morbidity in children and adolescents. The increased virulence of infectious agents and the increased prevalence of antimicrobial-resistant pathogens, particularly methicillin-resistant Staphylococcus aureus, have resulted in a more complicated clinical course for diagnosis and management, which is evidenced by an increased length of hospital stays, incidence of complications, and number of surgical interventions...
September 2016: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/27455444/epidemiology-and-management-of-acute-uncomplicated-septic-arthritis-and-osteomyelitis-spanish-multicenter-study
#20
Cristina Calvo, Esmeralda Núñez, Marisol Camacho, Daniel Clemente, Elisa Fernández-Cooke, Rosa Alcobendas, Luis Mayol, Pere Soler, Miren Oscoz, Jesús Saavedra-Lozano
BACKGROUND: Acute osteoarticular infection (OAI) is a potentially severe disease. The aim of this study was to evaluate the etiology, clinical characteristics and therapeutic approach of OAI in children in Spain. METHODS: Medical records from children <14 years with OAI from 25 hospitals between 2008-2012, were reviewed. Confirmed osteomyelitis (OM) and septic arthritis (SA) required a positive bacterial isolate; otherwise, they were considered probable. Probable SA with <40,000 cells/mm3 in joint fluid were not included...
July 22, 2016: Pediatric Infectious Disease Journal
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