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https://www.readbyqxmd.com/read/28819599/synovial-chondromatosis-a-rare-differential-diagnosis-of-hip-pain-in-a-child
#1
Manesh Chacko Philip, Sajeer Usman
INTRODUCTION: Primary synovial chondromatosis (SC) is a disease of the synovium occurring in the third to fifth decade of life with the peak incidence in the fifth decade and commonly involves the knee in 50% cases. The diagnosis of SC is primarily radiological and intraoperative. Primary SC of the hip is rare, and their prevalence is not known. CASE REPORT: A 7-year-old female child presented with pain and limp left hip for 6 weeks. She had a stiff hip gait. Clinical examination revealed a fixed abduction, flexion deformity, and restricted internal rotation with apparent lengthening of 2 cm...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28817210/varus-knee-osteoarthritis-elevated-synovial-cd15-counts-correlate-with-inferior-biomechanical-properties-of-lateral-compartment-cartilage
#2
Ulrich Koller, Wenzel Waldstein, Veit Krenn, Reinhard Windhager, Friedrich Boettner
The study analyzed the influence of synovitis on the histological and biomechanical properties of lateral-compartment cartilage. In a prospective cohort study, 84 patients (100 knees) with varus deformity of the knee were included. Osteochondral samples from the distal lateral femur underwent biomechanical and histologic analysis. Synovial tissue was sampled for histological (chronic synovitis score) and immunohistochemical evaluation of the degree of synovitis. CD15 (neutrophils), Ki-67 (dividing cells) and CD68 (macrophages) were tested in all synovial samples...
August 17, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28811353/the-omeract-rheumatoid-arthritis-magnetic-resonance-imaging-mri-scoring-system-updated-recommendations-by-the-omeract-mri-in-arthritis-working-group
#3
Mikkel Østergaard, Charles G Peterfy, Paul Bird, Frédérique Gandjbakhch, Daniel Glinatsi, Iris Eshed, Espen A Haavardsholm, Siri Lillegraven, Pernille Bøyesen, Bo Ejbjerg, Violaine Foltz, Paul Emery, Harry K Genant, Philip G Conaghan
OBJECTIVE: The Outcome Measures in Rheumatology (OMERACT) Rheumatoid Arthritis (RA) Magnetic Resonance Imaging (MRI) scoring system (RAMRIS), evaluating bone erosion, bone marrow edema/osteitis, and synovitis, was introduced in 2002, and is now the standard method of objectively quantifying inflammation and damage by MRI in RA trials. The objective of this paper was to identify subsequent advances and based on them, to provide updated recommendations for the RAMRIS. METHODS: MRI studies relevant for RAMRIS and technical and scientific advances were analyzed by the OMERACT MRI in Arthritis Working Group, which used these data to provide updated considerations on image acquisition, RAMRIS definitions, and scoring systems for the original and new RA pathologies...
August 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28806729/erk2-and-jnk1-contribute-to-tnf-%C3%AE-induced-il-8-expression-in-synovial-fibroblasts
#4
Shinichi Namba, Rei Nakano, Taku Kitanaka, Nanako Kitanaka, Tomohiro Nakayama, Hiroshi Sugiya
Tumor necrosis factor α (TNF-α) induces the expression and secretion of interleukin 8 (IL-8), which contributes to synovitis in rheumatoid arthritis (RA). To elucidate the mechanism of the onset of RA, we used synovial fibroblasts without autoimmune inflammatory diseases and investigated MAPK signaling pathways in TNF-α-induced IL-8 expression. Synovial fibroblasts isolated from healthy dogs were characterized by flow cytometry, which were positive for the fibroblast markers CD29, CD44, and CD90 but negative for the hematopoietic cell markers CD14, CD34, CD45, and HLA-DR...
2017: PloS One
https://www.readbyqxmd.com/read/28802679/impact-of-cell-wall-peptidoglycan-o-acetylation-on-the-pathogenesis-of-staphylococcus-aureus-in-septic-arthritis
#5
Gaurav Baranwal, Majd Mohammad, Anders Jarneborn, Bommana Raghunath Reddy, Archana Golla, Sumana Chakravarty, Lalitha Biswas, Friedrich Götz, Sahadev Shankarappa, Tao Jin, Raja Biswas
Staphylococcus aureus (S. aureus) is one of the most common pathogen causing septic arthritis. To colonize the joints and establish septic arthritis this bacterium needs to resist the host innate immune responses. Lysozyme secreted by neutrophils and macrophages is an important defense protein present in the joint synovial fluids. S. aureus is known to be resistant to lysozyme due to its peptidoglycan modification by O-acetylation of N-acetyl muramic acid. In this study we have investigated the role of O-acetylated peptidoglycan in septic arthritis...
August 7, 2017: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/28797238/with-a-biomechanical-treatment-in-knee-osteoarthritis-less-knee-pain-did-not-correlate-with-synovitis-reduction
#6
Vikram Swaminathan, Matthew J Parkes, Michael J Callaghan, Terence W O'Neill, Richard Hodgson, Andrew D Gait, David T Felson
BACKGROUND: Braces are used to treat pain in patellofemoral joint osteoarthritis (PFJOA). In a trial, we previously reported pain improvement after 6-weeks brace use. The pain reduction did not correlate with changes in Magnetic Resonance Imaging (MRI) assessed Bone Marrow Lesion volume or static synovial volume. Studies show that changes in the synovium on dynamic contrast enhanced (DCE) MRI are more closely associated with symptom change than static synovial volume changes. We hypothesised change in synovitis assessed using dynamic imaging could explain the reduction in pain...
August 10, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28793332/stromal-cell-markers-are-differentially-expressed-in-the-synovial-tissue-of-patients-with-early-arthritis
#7
Ivy Y Choi, Olga N Karpus, Jason D Turner, Debbie Hardie, Jennifer L Marshall, Maria J H de Hair, Karen I Maijer, Paul P Tak, Karim Raza, Jörg Hamann, Christopher D Buckley, Danielle M Gerlag, Andrew Filer
INTRODUCTION: Previous studies have shown increased expression of stromal markers in synovial tissue (ST) of patients with established rheumatoid arthritis (RA). Here, ST expression of stromal markers in early arthritis in relationship to diagnosis and prognostic outcome was studied. METHODS: ST from 56 patients included in two different early arthritis cohorts and 7 non-inflammatory controls was analysed using immunofluorescence to detect stromal markers CD55, CD248, fibroblast activation protein (FAP) and podoplanin...
2017: PloS One
https://www.readbyqxmd.com/read/28790485/bone-wasn-t-built-in-a-day-destruction-and-formation-of-bone-in-the-rheumatic-diseases
#8
Ellen M Gravallese
The hallmark of rheumatoid arthritis is synovitis, or inflammation of synovial tissues lining joints. Synovitis in rheumatoid arthritis promotes destruction of articular bone by inducing the differentiation and function of osteoclasts, leading to significant patient morbidity. The cell types and pathways mediating articular bone destruction have now been elucidated and the critical role of receptor activator of nuclear factor-kappa B ligand has been recognized, leading to the identification of new targets for the protection of articular bone...
2017: Transactions of the American Clinical and Climatological Association
https://www.readbyqxmd.com/read/28782470/novel-insights-into-the-pathogenesis-of-osteoarthritis
#9
Matthias Geyer, C Schönfeld
Osteoarthritis represents the most frequently diagnosed condition of the musculoskeletal system and accounts for a high amount of direct and indirect socioeconomic costs worldwide. While for rheumatoid arthritis much progress has been made in the past decades both in understanding its pathogenesis and in creating novel therapies, the pathophysiology of osteoarthritis still holds several secrets to be unraveled in the near future in order to also allow for the development of effective novel pharmacotherapeutical options...
August 7, 2017: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/28779958/efficacy-of-indocyanine-green-mediated-sonodynamic-therapy-on-rheumatoid-arthritis-fibroblast-like-synoviocytes
#10
Qin Tang, Shufang Chang, Zhonghua Tian, Jiangchuan Sun, Lan Hao, Zhigang Wang, Shenyin Zhu
Sonodynamic therapy (SDT) has become a new therapeutic method because of its activation of certain sensitizers by ultrasound. Some studies have reported that indocyanine green (ICG) has the characteristics of a sonosensitizer and favorable fluorescence imaging in synovitis of early inflammatory arthritis. In this study, we aimed to investigate the cytotoxic effect of ICG-mediated SDT on MH7A cells in vitro and the potential mechanisms involved. ICG was found to be taken up mainly in cytoplasm, with maximal uptake in 4 h...
August 2, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28777663/frondlike-synovitis-on-mri-and-correlation-with-polyethylene-surface-damage-of-total-knee-arthroplasty
#11
Angela E Li, Christine C Johnson, Darryl B Sneag, Chelsea N Koch, Kara Fields, Theodore T Miller, Timothy M Wright, Douglas E Padgett, Hollis G Potter
OBJECTIVE: The purpose of this study is to determine the association between polyethylene surface damage and the severity of frondlike hypertrophied synovitis, joint distention, capsular thickness, and osteolysis on MRI compared with other patient factors. Another goal of this study is to ascertain the interobserver reliability in MRI evaluation of synovitis. MATERIALS AND METHODS: MR images of 61 patients who had undergone revision total knee arthroplasty (TKA) were retrospectively reviewed...
August 4, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28776631/diffuse-pigmented-villonodular-synovitis-as-a-rare-cause-of-graft-failure-following-anterior-cruciate-ligament-reconstruction
#12
Rajiv Rajani, Liliana Ogden, Christopher J Matthews, C Parker Gibbs
This case report describes a 42-year-old woman who was diagnosed with pigmented villonodular synovitis (PVNS) in the knee. The patient had received a bone-patella tendon-bone autograft reconstruction of her anterior cruciate ligament (ACL) 22 years prior to her diagnosis of PVNS. After a traumatic event that tore her ACL graft, she underwent a second surgery to repair the initial reconstruction. However, her pain and joint instability remained unresolved. When radiolucent lesions in her tibia and femur were identified through a radiographic image, the patient was referred to the authors' orthopedic oncology clinic...
August 3, 2017: Orthopedics
https://www.readbyqxmd.com/read/28774249/non-tuberculous-mycobacterium-or-fungus-induced-chronic-tenosynovitis-with-rice-body-of-the-hand
#13
Daiki Yamamoto, Kaoru Tada, Seigo Suganuma, Kazuo Ikeda, Hiroyuki Tsuchiya
BACKGROUND: Chronic tenosynovitis of the wrist and hand is commonly seen by orthopedists, especially hand surgeons. However, cases with rice body formation are comparatively rare. Thus, we retrospectively reviewed the cases of chronic tenosynovitis in our department and evaluated the necessity of antibiotic therapy in the early post-surgical stage. METHODS: We analyzed the medical and surgical records of patients who had undergone surgery for chronic tenosynovitis with rice body formation in our department from 1997 to 2015...
September 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28771839/effect-of-arthroscopic-lavage-and-repeated-intra-articular-administrations-of-antibiotic-in-adult-horses-and-foals-with-septic-arthritis
#14
Matthieu Cousty, John David Stack, Cyril Tricaud, Florent David
OBJECTIVE: To evaluate the effect of arthroscopic lavage and repeated intra-articular administration of antibiotic in adult horses and foals with septic arthritis. STUDY DESIGN: Retrospective clinical study. ANIMALS: Adult horses and foals with septic arthritis (n = 62). METHODS: Age, sex, cause of septic synovitis, joint involved, hospitalization time, and outcome were recorded. Arthroscopic lavage was performed at day 0 (D 0)...
August 3, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28770509/it-s-time-to-change-perspective-new-diagnostic-tools-for-lateral-elbow-pain
#15
P Arrigoni, D Cucchi, A Menon, P Randelli
PURPOSE: The presence of intra-articular findings that may complement the extra-articular pathology in lateral epicondilytis has been suggested, and a role for minor instability of the elbow as part of the causative process of this disease has been postulated. This study was designed to describe two new clinical tests, aimed at detecting intra-articular pathology in patients affected by recalcitrant lateral epicondylitis and investigate their diagnostic performance. METHODS: Ten patients suffering of atraumatic lateral elbow pain unresponsive to conservative treatment were considered in this study...
August 2, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28767173/prevalence-presentation-and-treatment-of-lower-limb-pathologies-in-juvenile-idiopathic-arthritis-a-narrative-review
#16
REVIEW
Antoni Fellas, Fiona Hawke, Derek Santos, Andrea Coda
Juvenile idiopathic arthritis is a chronic, autoimmune, inflammatory joint disease. It is the most common arthritis in children and adolescents. This paper reviews the presentation and treatment of lower limb pathologies in juvenile idiopathic arthritis from an allied health perspective. Common lower limb pathologies include: synovitis causing swelling, tenderness and pain; persistent inflammation leading to flexion contractures; limb length discrepancies; muscle atrophy; enthesopathies such as plantar fasciitis and Achilles tendonitis; and tenosynovitis...
August 2, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28765183/a-case-of-bronchiolitis-obliterans-organising-pneumonia-associated-with-sapho-synovitis-acne-pustulosis-hyperostosis-osteitis-syndrome
#17
Fawad Hameed, Henry Steer
A 57-year-old woman with SAPHO (synovitis-acne-pustulosis-hyperostosis-osteitis) syndrome presented with recurrent episodes of pneumonia. She was treated with multiple courses of antibiotics with no success. The transbronchial biopsy undertaken via bronchoscopy revealed organising pneumonia (OP). She was treated with steroids and responded well with full clinical recovery and normalisation of her chest X-ray.To our knowledge, this is the first reported case of OP in association with SAPHO syndrome. This case report highlights the importance of considering OP in patients with SAPHO syndrome who present with chest infection...
August 1, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28764182/pigmented-villonodular-synovitis-of-thumb-a-cytological-diagnosis
#18
Kaneeka Bhatnagar, Akshdeep Singh Bawa, Vikram Narang, Pavneet Kaur
Pigmented Villonodular Synovitis (PVNS) is a unique benign proliferative process of unknown aetiology involving the synovial lined joints diffusely or focally. The entity remains a diagnostic challenge. This condition is attributed to an increased synovial proliferation causing villous or nodular changes of synovial lined joints leading to PVNS, Pigmented Villonodular Bursitis (PVNB) when arising from bursae or Pigmented Villonodular Tenosynovitis (PVNTS) originating from the tendon sheath. We present a case of a young female with nodular masses on right thumb with cytomorphological features on FNAC suggestive of PVNS which was finally confirmed by histopathology...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28762158/the-validity-and-accuracy-of-mri-arthrogram-in-the-assessment-of-painful-articular-disorders-of-the-hip
#19
Aysha Rajeev, Wim Tuinebreijer, Abdalla Mohamed, Mike Newby
The assessment of a patient with chronic hip pain can be challenging. The differential diagnosis of intra-articular pathology causing hip pain can be diverse. These includes conditions such as osteoarthritis, fracture, and avascular necrosis, synovitis, loose bodies, labral tears, articular pathology and, femoro-acetabular impingement. Magnetic resonance imaging (MRI) arthrography of the hip has been widely used now for diagnosis of articular pathology of the hip. A retrospective analysis of 113 patients who had MRI arthrogram and who underwent hip arthroscopy was included in the study...
July 31, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28758585/from-a-formal-training-program-in-musculoskeletal-ultrasound-msus-to-a-high-reproducibility-for-doppler-ultrasound-in-rheumatoid-arthritis
#20
Orlando Villota, Mario Diaz, Carmen Ceron, Ingrid Moller, Esperanza Naredo, Diego Luis Saaibi
OBJECTIVE: To assess the intra- and inter-observer reliability of ultrasound (US) in scoring B-mode, Doppler synovitis and combined B-mode and Doppler synovitis scores in different peripheral joints of rheumatoid arthritis (RA) patients. METHODS: Four rheumatologists with a formal training in musculoskeletal US (MSKUS) particularly focus on definitions and scoring synovitis on B-mode and Doppler mode participated in a patient-based reliability exercise on 16 active RA patients...
July 28, 2017: Current Rheumatology Reviews
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