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https://www.readbyqxmd.com/read/28735350/inflammatory-joint-disorders-and-neutrophilic-dermatoses-a-comprehensive-review
#1
REVIEW
Massimo Cugno, Roberta Gualtierotti, Pier Luigi Meroni, Angelo Valerio Marzano
Rheumatoid arthritis and spondyloarthritis are inflammatory joint disorders with an autoimmune pathogenesis and systemic involvement. The skin is one of the most frequently affected extraarticular sites with a number of manifestations or distinct diseases, including common conditions, such as rheumatoid nodules and psoriasis, and rare diseases like neutrophilic dermatoses. The latter are clinically characterised by polymorphic lesions, including pustules, bullae, abscesses, papules, nodules, plaques and ulcers, and histologically by neutrophil-rich inflammatory infiltrates...
July 22, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28734719/coronoid-reconstruction-using-osteochondral-grafts-a-biomechanical-study
#2
Enrico Bellato, Youngbok Kim, James S Fitzsimmons, Lawrence J Berglund, Alexander W Hooke, Daniel R Bachman, Shawn W O'Driscoll
HYPOTHESIS: The purposes of this study were to test the hypothesis that coronoid deficiency in the setting of posteromedial rotatory instability (PMRI) must be reconstructed to restore articular contact pressures to normal and to compare 3 different osteochondral grafts for this purpose. METHODS: After creation of a anteromedial fracture, six cadaveric elbows were tested under gravity varus stress using a custom-made machine designed to simulate muscle loads and to passively flex the elbow...
July 19, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28734536/evaluation-of-functional-outcome-after-nonsurgical-management-of-terrible-triad-injuries-of-the-elbow
#3
Farid Najd Mazhar, Davod Jafari, Alireza Mirzaei
BACKGROUND: Terrible triad (TT) is one of the severe injuries of the elbow that generally requires surgery. Nonsurgical treatment has recently been applied in selected cases of TT injury. Evaluation of the results of this treatment was the main aim of this study. METHODS: In a prospective cohort study, 10 patients with a mean follow-up of 30.6 months were evaluated. The inclusion criteria included a congruent joint after closed reduction, no indication for surgery of the coronoid and radial head fractures, no block in supination and pronation up to 60°, no intra-articular fragments, and a free and stable joint with ulnohumeral extension up to a minimum of 45°...
August 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28734534/elbow-vascularized-composite-allotransplantation-surgical-anatomy-and-technique
#4
Zvi Steinberger, Heng Xu, Nikolas H Kazmers, Stephanie Thibaudeau, Russel G Huffman, L Scott Levin
BACKGROUND: Elbow reconstruction with vascularized composite allotransplantation (VCA) may hold promise in treating end-stage arthritis as no current treatment is both functional and durable. We describe the vascular and gross anatomy of the elbow in the context of VCA procurement and propose a step-by-step surgical technique for human elbow VCA. METHODS: We injected latex in the arterial tree of 16 fresh adult cadaveric upper extremities. We identified and measured arteries and nerves and their branch points relative to the medial epicondyle...
August 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28731959/efficacy-of-intra-articular-botulinum-toxin-in-osteo-articular-joint-pain-a-meta-analysis-of-randomized-controlled-trials
#5
Mathilde Courseau, Pascale Vergne Salle, Danièle Ranoux, Anais de Pouilly Lachatre
OBJECTIVE: To evaluate the efficacy of intra-articular injections of botulinum toxin A (BT-A) into the painful joint diseases through a systematic review of the literature and a meta-analysis of controlled randomized trials. Indeed, intra articular therapies (corticosteroids, hyaluronic acid) have limited efficacy and run a risk of toxicity in patients with joint pain. New therapeutic options are needed to treat painful osteo-articular disease. METHODS: We searched via Pubmed, ACR and EULAR congresses and grey literature for the studies reported until June 2016 and addressing the issue of BT intra articular injections in patients with refractory joint pain...
July 20, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28730295/incarceration-of-the-medial-collateral-ligament-in-the-intercondylar-notch-following-proximal-avulsion
#6
Edward Walton, Martin Williams, James R Robinson
Intra-articular entrapment of the medial collateral ligament (MCL) is a rare but recognised complication of traumatic injury to the posteromedial corner (PMC) of the knee. Considering the MCL is the most commonly injured ligament of the knee this complication is extremely rare with only a handful of cases describing MCL entrapment following distal avulsion of the MCL. We present the first known case of MCL entrapment following proximal avulsion of the MCL and posterior oblique ligament (POL) with the mid-substance of the MCL becoming entrapped in the joint, lying on the superior surface of the medial meniscus and extending up into the intercondylar notch...
July 20, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28729762/combination-of-bone-marrow-mesenchymal-stem-cells-and-cartilage-fragments-contribute-to-enhanced-repair-of-osteochondral-defects
#7
Mohammed Abbas
Cartilage tissue engineering using stem cells and biomaterials is considered a promising approach despite poor outcomes. We hypothesise that articular cartilage fragments provides native environmental cues to enhance stem cell differentiation. As such we evaluated the chondrogenic differentiation and repair of critical size defect in a human explant osteochondral model (OD) using bone marrow derived mesenchymal stem cells (BM-MSCs) and homogenised cartilage. BM-MSCs were established from the bone-marrow plugs of patients undergoing total knee arthroplasty and characterized...
2017: Bioinformation
https://www.readbyqxmd.com/read/28729605/evaluating-the-effects-of-material-properties-of-artificial-meniscal-implant-in-the-human-knee-joint-using-finite-element-analysis
#8
Duraisamy Shriram, Gideon Praveen Kumar, Fangsen Cui, Yee Han Dave Lee, Karupppasamy Subburaj
Artificial meniscal implants may replace severely injured meniscus and restore the normal functionality of the knee joint. Implant material stiffness and shape influence the longevity of implantations. This study, using 3D finite element analysis, aimed to evaluate the effects of material stiffness variations of anatomically shaped artificial meniscal implant in the knee joint. Finite element simulations were conducted on five different cases including intact knee, medial meniscectomized knee, and the knee joint with the meniscal implant with three distinct material stiffness...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28729380/arthroscopic-excision-of-an-intra-articular-osteoid-osteoma-in-the-elbow-joint
#9
Sercan Akpinar, Esra Circi
An osteoid osteoma is a rare, small, benign and painful tumour occurring in the extra-articular portion of long bones seen most commonly in the lower extremities. This is a case report of a 23-year-old female patient who underwent arthroscopic resection of an intra-articular osteoid osteoma. The nidus was completely removed by arthroscopic excision. The diagnosis was confirmed by postoperative histopathological analysis. In the case presented we have shown that intra-articular arthroscopy can be successful in the surgical management of benign bony lesions involving the elbow joint...
July 19, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28728303/-enhancing-soft-tissue-reattachment-with-artificial-mesh-in-joint-endoprosthetic-reconstruction-for-bone-tumors
#10
J S Lin, R Chen, W Yan, D D Chen
Objective: To investigate the operative method and clinical application of the BARD(®) Mesh in enhancing joint stability and function of endoprosthetic reconstruction for bone tumors. Methods: From Jan 2013 to Jun 2015, the clinical data of 51 patients aged (44.75±23.18) years underwent wide resection of tumor and endoprosthetic reconstruction using the BARD(®) Mesh were collected. Among them, 27 were male and 24 were female. The surgical treatments received by these patients included 5 shoulder arthroplasties, 12 elbow replacements, 12 hip replacements and 32 knee replacements (including 24 femoral tumors and 8 tibial tumors)...
July 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28727714/3d-morphometric-analysis-of-normal-sacroiliac-joints-a-new-classification-of-surface-shape-variation-and-the-potential-implications-in-pain-syndromes
#11
Mary Kristen Jesse, Christopher Kleck, Adam Williams, Brian Petersen, Deborah Glueck, Kimberly Lind, Vikas Patel
BACKGROUND: Normal sacroiliac (SI) joints vary widely in shape, and it is unclear whether SI joint morphology plays a role in the development of pain. To answer this question, we used 3D-CT surface rendering to image healthy study participants and used the resulting images to develop a classification system for SI joint morphology. In a case-control study comparing health research participants to patients with SI pain, we assessed whether the classification of SI joint morphology was associated with pain...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28727417/oxygen-dependent-lipid-profiles-of-3d-cultured-human-chondrocytes-revealed-by-maldi-msi
#12
Brenda Bakker, Gert B Eijkel, Ron M A Heeren, Marcel Karperien, Janine N Post, Berta Cillero Pastor
Articular cartilage is exposed to a gradient of oxygen levels ranging from 5% at the surface to 1% in the deepest layers. While most cartilage research is performed in supraphysiological oxygen levels (19-21%), culturing chondrocytes under hypoxic oxygen levels (≤ 8%) promotes the chondrogenic phenotype. Exposure of cells to various oxygen levels alters their lipid metabolism, but detailed studies examining how hypoxia affects lipid metabolism in chondrocytes are lacking. To better understand the chondrocyte's behavior in response to oxygen we cultured 3D pellets of human primary chondrocytes in normoxia (20% oxygen) and hypoxia (2...
July 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28725955/biologics-in-juvenile-idiopathic-arthritis-a-narrative-review
#13
REVIEW
Federica Vanoni, Francesca Minoia, Clara Malattia
In the past years, pediatric rheumatology has seen a revolution in the treatments for rheumatic diseases, particularly juvenile idiopathic arthritis. Even if nonsteroidal anti-inflammatory drugs (NSAID), intra-articular corticosteroids (IAC) injections, and methotrexate remain the mainstay of the treatment for JIA patients, in aggressive disease, these treatments may be not sufficient to reach disease remission and to prevent long-term disability. Comprehension of immunological mechanisms involved in the pathogenesis of the diseases allowed to conceive new drugs targeting specific steps of the immune response...
July 20, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28725500/volar-plate-fixation-in-patients-older-than-70-years-with-ao-type-c-distal-radial-fractures-clinical-and-radiologic-outcomes
#14
Nicolas S Piuzzi, Ezequiel E Zaidenberg, Matias Pereira Duarte, Jorge G Boretto, Agustin Donndorff, Gerardo Gallucci, Pablo De Carli
Introduction  Treatment of unstable distal radial fractures (DRFs) in elderly patients is controversial, and considering the increasing life expectancy, their appropriate treatment is of growing importance. Our aim was to analyze the clinical and radiologic outcomes in the elderly patients with AO type C DRF treated with volar locking plate (VLP). Materials and Methods  Between 2007 and 2011, 572 DRFs were operated on in our hospital with open reduction and internal fixation with VLP. Of these, only 64 patients (66 DRFs) met the selection criteria (AO type C DRF, age > 70 years, minimum 12-month follow-up)...
August 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28725314/actions-of-the-biceps-brachii-at-the-shoulder-a-review
#15
REVIEW
Dennis Landin, Melissa Thompson, Meghan R Jackson
Bi-articular muscles cross more than one joint and contribute to motion at both joints, and the extremities of the human body contain several such muscles. Actions produced by all muscles are determined, to a large extent, by joint moment arms and muscle length. These are transient factors which change as joint angles are altered. Measuring muscle moments while manipulating both joints will produce a better understanding of the actions of bi-articular muscles. This review summarizes investigations which have explored the actions of the biceps brachii as shoulder and elbow joints are moved into various angle combinations...
August 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28724980/handheld-co-axial-bioprinting-application-to-in-situ-surgical-cartilage-repair
#16
Serena Duchi, Carmine Onofrillo, Cathal D O'Connell, Romane Blanchard, Cheryl Augustine, Anita F Quigley, Robert M I Kapsa, Peter Pivonka, Gordon Wallace, Claudia Di Bella, Peter F M Choong
Three-dimensional (3D) bioprinting is driving major innovations in the area of cartilage tissue engineering. Extrusion-based 3D bioprinting necessitates a phase change from a liquid bioink to a semi-solid crosslinked network achieved by a photo-initiated free radical polymerization reaction that is known to be cytotoxic. Therefore, the choice of the photocuring conditions has to be carefully addressed to generate a structure stiff enough to withstand the forces phisiologically applied on articular cartilage, while ensuring adequate cell survival for functional chondral repair...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724439/genetic-deficiency-of-wnt5a-diminishes-disease-severity-in-a-murine-model-of-rheumatoid-arthritis
#17
Susan MacLauchlan, Maria A Zuriaga, José J Fuster, Carla M Cuda, Jennifer Jonason, Fernanda Behzadi, Jennifer Parker Duffen, G Kenneth Haines, Tamar Aprahamian, Harris Perlman, Kenneth Walsh
BACKGROUND: Rheumatoid arthritis (RA) is a common autoimmune disease characterized by chronic inflammation of the joints, leading to bone erosion and joint dysfunction. Despite the recent successes of disease-modifying anti-rheumatic drugs (DMARDs), there is still clinical need for understanding the development and molecular etiology of RA. Wnts are developmental morphogens whose roles in adult pathology are poorly characterized. Wnt5a is a member of the non-canonical family of Wnts that modulates a wide range of cell processes, including differentiation, migration, and inflammation...
July 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28724217/chondroprotective-and-anti-nociceptive-effects-of-caffeoylquinic-acid-in-osteoarthritis-by-downregulating-catabolic-activity-and-oxidative-damage-in-chondrocytes
#18
Luping Liu, Yongmei Li
We evaluated the chondroprotective and anti-nociceptive effects of caffeoylquinic acid (CA) in a rat osteoarthritis (OA) model. Monosodium iodoacetate was injected intra-articularly in the rats to produce OA. The rats were divided into three groups: control, OA group, which received vehicle, and the CA-treated group, which received CA (50mg/kg, p.o.) for 14days. At the end of the protocol, pain was estimated by observing the paw withdrawal threshold and latency. Degeneration of cartilage was assessed through histomorphological and microscopical examination of joints...
July 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28723917/evidence-base-and-practice-variation-in-acute-care-processes-for-knee-and-hip-arthroplasty-surgeries
#19
Marcel Mayer, Justine Naylor, Ian Harris, Helen Badge, Sam Adie, Kathryn Mills, Joseph Descallar
BACKGROUND: Lack of evidence contributes to unnecessary variation in treatment costs and outcomes. This study aimed to identify from interventions historically used for total knee or hip arthroplasty (TKA, THA): i) if routine use is supported by high-level evidence; ii) whether surgeon use aligns with the evidence. METHODS: Part 1: Systematic search of electronic library databases for systematic reviews and practice guidelines concerning seven acute-care interventions...
2017: PloS One
https://www.readbyqxmd.com/read/28723772/anatomic-investigation-of-lumbar-transforaminal-fenestration-approach-and-its-clinical-application-in-far-lateral-disc-herniation
#20
Baoshan Xu, Haiwei Xu, Jean Destandau, Xinlong Ma, Jian He, Qun Xia, Ning Ji, Qiang Yang, Yue Liu, Hongfeng Jiang
Treating lumbar disease at the intervertebal foramina is controversial because we lack an approach providing sufficient exposure and preserving spinal stability. The primary objective of this study was to investigate the feasibility of the transforaminal fenestration (TFF) approach for treating lumbar disease involving the intervertebal foramina.In the anatomic study of 30 adult cadaveric lumbar spine specimens, the TFF approach was used from L1 to S1. The scope of resection was measured manually and on 3D CT images...
July 2017: Medicine (Baltimore)
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