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SI Joint

Si Heng Sharon Tan, Mazen M Ibrahim, Zhaojie Joel Lee, Yen Kit Michael Chee, James H Hui
PURPOSE: To date, many radiographic parameters on patellar instability have their measurements taken statically, and have not been studied in various degrees of flexion according to the patellar tracking. There are also limited data regarding the use of these parameters in predicting recurrent patellar dislocation. The current study aims to review the radiographic parameters of the patellofemoral joint in different degrees of knee flexion and to correlate them with the presence of recurrent instability...
November 20, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Yu-Zhang Yang, Xiao-Feng Liu, Ru-Bo Zhang, Si-Ping Pang
Herein, binding of the β-cyclodextrin (β-CD) host to the unstable aryl pentazole guest has been confirmed experimentally and theoretically. After the confinement of aryl pentazole, electron density reorganization was studied by M06-2X dispersion-corrected DFT and further reflected in the characteristic shift in the NMR spectra. Among the host-guest complexes, the inclusion complex is favored with the phenyl ring expectedly encapsulated within the cavity through noncovalent interactions such as hydrogen bonding, C-Hπ, and the special Csp(2)-HH-Csp(3) bonding discovered by the NBO, QTAIM, and NCI-RDG theories...
November 16, 2017: Physical Chemistry Chemical Physics: PCCP
Jyoti Panwar, Pulukool Sandhya, Madhavi Kandagaddala, Aswin Nair, Visalakshi Jeyaseelan, Debashish Danda
Sacroiliitis is one of the criteria for classification as spondyloarthritis (SpA), though not unique to SpA. Other conditions including gout may be erroneously diagnosed as SpA due to sacroiliitis. The objective was to identify specific CT findings in sacroiliitis associated with SpA and gout. In this retrospective study, CT images of patients with sacroiliitis and clinical diagnosis of gout or SpA from 2010 to 2015 were independently reviewed by two radiologists, blinded to diagnosis. Axial and coronal oblique images were analyzed for characteristics of erosions...
November 8, 2017: Clinical Rheumatology
Žiga Lesjak, Alfiia Galimzianova, Aleš Koren, Matej Lukin, Franjo Pernuš, Boštjan Likar, Žiga Špiclin
Quantified volume and count of white-matter lesions based on magnetic resonance (MR) images are important biomarkers in several neurodegenerative diseases. For a routine extraction of these biomarkers an accurate and reliable automated lesion segmentation is required. To objectively and reliably determine a standard automated method, however, creation of standard validation datasets is of extremely high importance. Ideally, these datasets should be publicly available in conjunction with standardized evaluation methodology to enable objective validation of novel and existing methods...
November 4, 2017: Neuroinformatics
Ryan M Byrne, Yu Zhou, Liying Zheng, Suman K Chowdhury, Ameet Aiyangar, Xudong Zhang
The lumbar facet joint (FJ) is often associated with pathogenesis in the spine, but quantification of normal FJ motion remains limited to in vitro studies or static imaging of non-functional poses. The purpose of this study was to quantify lumbar FJ kinematics in healthy individuals during functional activity with dynamic stereo radiography (DSX) imaging. Ten asymptomatic participants lifted three known weights starting from a trunk-flexed (∼75°) position to an upright position while being imaged within the DSX system...
October 19, 2017: Journal of Biomechanics
D Zanuttini, I Blum, L Rigutti, F Vurpillot, J Douady, E Jacquet, P-M Anglade, B Gervais
The molecular electronic states of the SiO(2+) dication have been investigated in a joint theoretical and experimental analysis. The use of a tip-shaped sample for tomographic atom probe analysis offers the unique opportunity to produce and to analyze the lifetime of some excited states of this dication. The perturbation brought by the large electric field of the polarized tip along the ion trajectory is analyzed by means of molecular dynamics simulation. For the typical electric fields used in the experiment, the lowest energy triplet states spontaneously dissociate, while the lowest energy singlet states do not...
October 28, 2017: Journal of Chemical Physics
Ning Wang, Xiao-Ping Wu, Peng-Jie Sheng
OBJECTIVE: To observe the efficacy of double-needle winding and pulling combined with electroacupuncture in treating scapulohumeral periarthritis. METHODS: Sixty cases with scapulohumeral periarthritis were equally randomized into treatment group and control group (n=30 in each group). Jianliao (TE 14), Jianyu(LI 15), Naoshu(SI 10), Jianzhen(SI 9), Binao(LI 14), Quyuan(SI 13), Quchi(LI 11), Shousanli(LI 10) were selected in the two groups. In the treatment group,double-needles were inserted respectively into TE 14,LI 15 and SI 10, twirling till sticking,then the needles were pulled for 3 times...
June 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
Syahira Annuar, Reza Mahmoodian, Mohd Hamdi, King-Ning Tu
The high performance and downsizing technology of three-dimensional integrated circuits (3D-ICs) for mobile consumer electronic products have gained much attention in the microelectronics industry. This has been driven by the utilization of chip stacking by through-Si-via and solder microbumps. Pb-free solder microbumps are intended to replace conventional Pb-containing solder joints due to the rising awareness of environmental preservation. The use of low-volume solder microbumps has led to crucial constraints that cause several reliability issues, including excessive intermetallic compounds (IMCs) formation and solder microbump embrittlement due to IMCs growth...
2017: Science and Technology of Advanced Materials
Da-Peng Wu, Jun-Lei Zhang, Jing-Yu Wang, Ming-Xing Cui, Jin-Ling Jia, Xiang-Hua Liu, Qiu-Dong Liang
BACKGROUND/AIMS: Osteoarthritis (OA) is a common inflammatory joint disease. miRNAs are associated with OA and functionally implicated in the pathogenesis of the disease. In the present study, we investigated the role of miR-1246 in the lipopolysaccharide (LPS)-induced inflammatory injury of ATDC5 cells. METHODS: ATDC5 cells were cultured and treated with LPS in a series of concentration (0, 1, 5, and 10 µg/ml) for 5 h. The cells were transfected with miR-1246-mimic, inhibitor, si-HNF4γ or negative control, then were assessed for cell viability using CCK8 assay, apoptosis by flow-cytometry and expressions of miR-1246 and pro-inflammatory cytokines by qRT-PCR and western blot analysis...
October 20, 2017: Cellular Physiology and Biochemistry
Antoine Schneider, Salim Si-Mohamed, Robert A Magnussen, Sebastien Lustig, Philippe Neyret, Elvire Servien
PURPOSE: Previous research has demonstrated that women have a higher risk of anterior cruciate ligament (ACL) injury than men. Tibiofemoral articular geometry may play a role in the occurrence of ACL tears. The purpose of this study was to analyze the gender-specific geometric characteristics differences in tibiofemoral morphology in ACL-deficient patients. METHODS: Medial tibial slope (MTS), lateral tibial slope (LTS), medial tibial plateau concavity, medial and lateral femoral condyle convexity, and lateral plateau convexity were analyzed in 276 patients with complete ACL injuries (138 females and 138 males)...
October 20, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Xingkang He, Wenrui Wu, Zhenghua Lin, Yue Ding, Jianmin Si, Lei-Min Sun
BACKGROUND: Our aim was to validate the American Joint Committee on Cancer (AJCC) 8th edition stage system for gastric cancer in the Western world and to compare several modifications between the 7th and 8th edition systems. METHODS: Eligible patients having undergone surgical resection of gastric cancer during 2004-2011 from the Surveillance, Epidemiology, and End Results (SEER) database were included in the current study. Survival differences were assessed by Kaplan-Meier curve and log-rank tests...
October 20, 2017: Gastric Cancer
Laís Uyeda Aivazoglou, Orlando Rondan Zotti, Marcelo de Medeiros Pinheiro, Moacir Ribeiro de Castro Junior, Andrea Puchnick, Artur da Rocha Corrêa Fernandes, Eloy de Ávila Fernandes
OBJECTIVE: To evaluate the imaging features of spondyloarthritis in magnetic resonance imaging (MRI) of the sacroiliac (SI) joint and topography (in thirds) and affected margin, considering that this issue is rarely addressed in the literature. METHODS: A cross-sectional study evaluating MRI (1.5T) of SI in 16 patients with axial spondyloarthritis, for the presence of acute (subchondral bone edema, enthesitis, synovitis and capsulitis) and chronic (erosions, subchondral bone sclerosis, bony bridges, and fatty infiltration) changes, performed by two blinded radiologists...
September 2017: Revista Brasileira de Reumatologia
Sumin Lee, Sang-Wook Lee, Sunmin Park, Sang Min Yoon, Jin-Hong Park, Si Yeol Song, Seung Do Ahn, Jong Hoon Kim, Eun Kyung Choi, Su Ssan Kim, Jinhong Jung, Young Seok Kim
PURPOSE: To validate the 8th edition of the American Joint Committee on Cancer/Union for International Cancer Control (AJCC/UICC) TNM staging system for human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC) and investigate whether a modified classification better reflects the prognosis. MATERIALS AND METHODS: Medical records of patients diagnosed with non-metastatic HPV-related OPSCC between 2010 and 2016 at a single institution were retrospectively reviewed...
September 2017: Radiation Oncology Journal
Mojtaba Talaei-Khoei, Amin Mohamadi, Stefan F Fischerauer, David Ring, Ana-Maria Vranceanu
OBJECTIVE: Type D personality - the joint tendency toward negative affectivity (NA) and social inhibition (SI) - is associated with greater symptom perception and negative health outcomes among various patient populations. We investigated Type D personality among patients with upper extremity musculoskeletal illness. METHOD: In cross-sectional design, we estimated the prevalence of Type D personality in this population and explored the associations of two different Type D conceptualizations (i...
September 27, 2017: General Hospital Psychiatry
Julian Melchior, Yusef Azraq, Isabelle Chary-Valckenaere, Anne-Christine Rat, Marion Reignac, Pedro Texeira, Alain Blum, Damien Loeuille
OBJECTIVE: To assess the performance of pelvic plain radiograph (radiography), abdominal CT and sacroiliac joint MRI (MRI) compared with sacroiliac joints CT (SI joint CT) for the diagnosis of structural sacroiliitis in a population suffering from spondyloarthritis (SpA) meeting the New York or ASAS criteria. METHODS: All SpA patients eligible for biologic treatment who received a pre-therapeutic check-up including the four imaging techniques in the same year were selected from 2005 to 2012...
October 2017: European Journal of Radiology
Zhibiao Bai, Shichang Gao, Jia Liu, Anlin Liang, Weihua Yu
BACKGROUND: The iatrogenic injuries to the lumbar nerves during the fixation the sacroiliac (SI) joint fractures with anterior plates were often reported. No specific method had been reported to avoid it. This study was done to find a safer way of placing the anterior plates and screws for treating the sacroiliac (SI) joint fracture and/or dislocation. METHODS: The research was performed using 8 male and 7 female normal corpse pelvic specimens preserved by 10% formalin solution...
September 25, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
Ahmed Omar, Ismail Sari, Mohamed Bedaiwi, David Salonen, Nigil Haroon, Robert D Inman
Objective: To compare the antero-posterior (AP) pelvis view with the Ferguson view of the SI joint in order to resolve whether one modality has a clear advantage for grading of sacroiliitis. Methods: One hundred and nine patients fulfilling Assessment of SpondyloArthritis international Society (ASAS) criteria for axial spondyloarthritis who had AP pelvis and Ferguson views on the same day were identified from an axial spondyloarthritis clinic registry. Two rheumatologists independently scored the AP pelvis and Ferguson views according to modified New York (NY) criteria...
October 1, 2017: Rheumatology
Ke Lu, Yi-Xuan Li, Tian-Shu Shi, Fei Yu, Si-Cong Min, Liang Qiao, Lan Li, Hua-Jian Teng, Qing Jiang
The aim is to study how serum concentration of Dickkopf-1 (DKK1) and Sclerostin (SOST) varies in patients before and after undergoing total joint arthroplasty (TJA). A total of 104 patients undergoing TJA were included in this study. Serum DKK1 and SOST were measured at 1 day before and 1, 3, and 5 days after surgery. DKK1 levels were highest at 5 days' postoperation, increasing to 25.17% above preoperation levels (P < .01), while SOST levels were lowest at 3 days' postoperation, falling to 18.71% below preoperation levels (P < ...
September 2017: Medicine (Baltimore)
Si Wei Kheok, Keh Oon Ong
Benign periarticular, bone and joint lipomatous lesions are rare entities that are increasingly being identified using current imaging techniques. This pictorial review illustrates the wide range of imaging presentations of these lesions at various sites and their pathognomonic features. The main lesions reviewed include intraosseous lipoma, liposclerosing myxofibrous tumour, lipoma arborescens and intra-articular lipoma.
September 2017: Singapore Medical Journal
Sunghoon Park, Kyu-Sung Kwack, Young Ju Lee, Sung-Min Gho, Hyun Young Lee
OBJECTIVE: To assess the feasibility and accuracy of synthetic MRI compared to conventional T 1 weighted and multi-echo spin-echo (MESE) sequences for obtaining T 2 values in the knee joint at 3 Tesla. METHODS: This retrospective study included 19 patients with normal findings in the knee joint who underwent both synthetic MRI and MESE pulse sequences for T 2 quantification. T 2 values of the two sequences at the articular cartilage, bone marrow and muscle were measured...
November 16, 2017: British Journal of Radiology
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