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SI Joint

Jun Young Choi, Si Jung Song, Sung Jung Kim, Sang Hee Kim, Ji Soo Park, Jin Soo Suh
BACKGROUND: We aimed to determine the change in hindfoot alignment after high (HTO) or low tibial osteotomy (LTO), which is commonly performed to prevent the progression of arthritis of the knee or ankle. METHODS: We retrospectively reviewed the radiographic findings of patients who underwent HTO or LTO for arthritis with varus deformity of the knee or ankle joint. The hindfoot alignment view angle (HAVA), hindfoot alignment ratio (HAR), and hindfoot moment arm (HMA) were measured using the hindfoot alignment radiographs...
May 1, 2018: Foot & Ankle International
Walter P Maksymowych, Désirée van der Heijde, Xenofon Baraliakos, Atul Deodhar, Sarah P Sherlock, David Li, Dona Fleishaker, Thijs Hendrikx, Keith S Kanik
Objectives: Minimally important changes (MICs) for SPondyloArthritis Research Consortium of Canada (SPARCC) MRI scores are ⩾2.5 for SI joint and ⩾5 for spine. This post hoc analysis assessed achievement of MIC in SPARCC scores in biologic-naïve patients with AS treated with tofacitinib or placebo, and correlation with clinical responses. Methods: Adult AS patients in a 12-week phase 2 study (n = 207) were randomized 1: 1: 1: 1 to tofacitinib 2, 5 or 10 mg twice daily (BID) or placebo...
April 26, 2018: Rheumatology
Michel P Bonnin, Jean-Charles Rollier, Jean-Christophe Chatelet, Tarik Ait-Si-Selmi, Julien Chouteau, Laurent Jacquot, Gerjon Hannink, Mo Saffarini, Michel-Henri Fessy
Background: Patients are often concerned about returning to sports after total hip arthroplasty (THA). Purpose: To (1) evaluate sports participation and motivation rates in a large cohort of patients who underwent uncemented THA with ceramic-on-ceramic bearings and (2) determine whether patients' participation was associated with their motivation for each sport, preoperative demographics, or patient-reported outcomes. Study Design: Case-control study; Level of evidence, 3...
April 2018: Orthopaedic Journal of Sports Medicine
Yonghui Zhang, Lin Zhang, Min Lu
OBJECTIVE: To observe the therapeutic effects on the postoperative analgesia after total knee arthroplasty (TKA) and functional rehabilitation with acupuncture at the distal points along the affected meridians and femoral nerve block. METHODS: A total of 60 patients with knee prosthesis were collected and randomized into an observation group and a control group, 30 cases in each one. All of the patients received the femoral nerve block before operation. The analgesia pump was used for analgesia after operation and TKA postoperative rehabilitation was adopted...
March 12, 2018: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
Wei Qin Yin, Hao Qi Jing, Ya Bo Wang, Si Yu Wei, Yue Sun, Sheng Sen Wang, Xuai Zhi Wang
The elevated concentration of tropospheric ozone (O3 ) is an important global climate change driver, with adverse impacts on soil ecological environment and crop growth. In this study, a pot experiment was carried out in an open top chamber (OTC), to investigate the effects of elevated ozone concentration on soil enzyme activities (catalase, polyphenol oxidase, dehydrogenase and invertase), organic acids contents (oxalic acid, citric acid and malic acid) at different growth stages (tillering, jointing, heading and ripening stages) of wheat, and combined with the rhizospheric soil physicochemical properties and plant root characteristics to analyze the underlying reasons...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Emily Darr, S Craig Meyer, Peter G Whang, Don Kovalsky, Clay Frank, Harry Lockstadt, Robert Limoni, Andy Redmond, Philip Ploska, Michael Y Oh, Daniel Cher, Abhineet Chowdhary
Background: Minimally invasive sacroiliac joint fusion (SIJF) has become an increasingly accepted surgical option for chronic sacroiliac (SI) joint dysfunction, a prevalent cause of unremitting low back/buttock pain. Objective: The objective of this study was to report clinical and functional outcomes of SIJF using triangular titanium implants (TTI) in the treatment of chronic SI joint dysfunction due to degenerative sacroiliitis or sacroiliac joint (SIJ) disruption at 3 years postoperatively...
2018: Medical Devices: Evidence and Research
Matthew V Abola, Jason R Teplensky, Daniel R Cooperman, Jennifer M Bauer, Raymond W Liu
STUDY DESIGN: Cross-sectional anatomical study in dry cadaveric specimens OBJECTIVE.: This study evaluates how the sacroiliac (SI) joint angulation, midsagittal sacral curvature, and sacral ala width relate to pelvic incidence (PI). SUMMARY OF BACKGROUND DATA: Numerous spinopelvic pathologies have been linked with pelvic incidence; however, the manner in which sacral morphology fits into this association is largely unknown. METHODS: A total of 120 cadaveric sacra and corresponding innominate bones were obtained from an osteological collection...
April 12, 2018: Spine
Xiang Pan, Jingning Jiang, Si Li, Zhenping Ding, Chen Pan, Xianyi Gong
A coherent-noncoherent joint processing framework is proposed for active sonar to combine diversity gain and beamforming gain for detection of a small target in shallow water environments. Sonar utilizes widely-spaced arrays to sense environments and illuminate a target of interest from multiple angles. Meanwhile, it exploits spatial diversity for time-reversal focusing to suppress reverberation, mainly strong bottom reverberation. For enhancement of robustness of time-reversal focusing, an adaptive iterative strategy is utilized in the processing framework...
April 10, 2018: Sensors
Dong Huang, Jianmin Chen, Cuiyu Yang, Minzhen Wang
Ovarian cancer, with its high morbidity, has one of the highest mortality rates among gynecological malignant tumors. Overexpression of targeting protein for Xklp2 (TPX2) has been identified in numerous malignant tumors. The present study sought to determine whether TPX2 silencing inhibited the growth and metastasis of ovarian cancer cells, and whether microvesicles‑ and ultrasonic radiation‑mediated small interfering (si)RNA‑TPX2 transfection may improve the therapeutic effect. The SKOV3 cell line, derived from papillary serous cytadenocarcinoma of the human ovary, was selected as a cell model...
March 28, 2018: Molecular Medicine Reports
Chunyang Zhang, Lingzhi Chen, Yingjie Zhu, Zisheng Guan
This paper reports inverted pyramid microstructure-based single-crystalline silicon (sc-Si) solar cell with a conversion efficiency up to 20.19% in standard size of 156.75 × 156.75 mm2 . The inverted pyramid microstructures were fabricated jointly by metal-assisted chemical etching process (MACE) with ultra-low concentration of silver ions and optimized alkaline anisotropic texturing process. And the inverted pyramid sizes were controlled by changing the parameters in both MACE and alkaline anisotropic texturing...
April 3, 2018: Nanoscale Research Letters
Martin D Hoffman, Vikram Agnish
OBJECTIVES: Examine the effectiveness of sacroiliac (SI) joint prolotherapy for SI joint instability, and characterize the patients most likely to benefit from this treatment. DESIGN: Retrospective cohort study. SETTING: Department of Veterans Affairs outpatient physical medicine clinic. INTERVENTIONS: Patients referred for low back pain and diagnosed with SI joint instability received a series of three SI joint prolotherapy injections (15% dextrose in lidocaine) at approximately a one-month interval...
April 2018: Complementary Therapies in Medicine
Shi-Wei Gu, Ke Yang, Si-Qiao Zhao, Zhan-Ao Gao, Shun-Qian Ma, Wen-Qing Zhang
OBJECTIVE: To explore clinical effect of minimally corrective osteotomy for the treatment of hallux valgus with deformity of little toe varus through small incision. METHODS: From January 2013 to June 2016, 168 hallux valgus patients with deformity of little toe varus were treated by minimally corrective osteotomy through small incision. Among them, 7 males and 161 females were aged from 22 to 75 years old with an average of(59.3±3.5) years old. Preoperative clinical manifestation mainly focus on red and swollen of bunion, pain around with metatarsal bones, and diagnosed as hallux valgus with deformity of little toe varus through small incision...
March 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
Ryo Takagi, Riki Ogasawara, Junya Takegaki, Yuki Tamura, Arata Tsutaki, Koichi Nakazato, Naokata Ishii
Past contraction-induced skeletal muscle injury reduces the degree of subsequent injury; this phenomenon is called the "repeated bout effect (RBE)." This study addresses the mechanisms underlying the RBE, focusing on primary calcium-dependent injury pathways. Wistar rats were subdivided into single injury (SI) and repeated injury (RI) groups. At age 10 weeks, the right gastrocnemius muscle in each rat in the RI group was subjected to strenuous eccentric contractions (ECs). Subsequently, mild ECs were imposed on the same muscle of each rat at 14 weeks of age in both groups...
March 2018: Physiological Reports
Pauline A Bakker, Rosaline van den Berg, Manouk de Hooge, Miranda van Lunteren, Zineb Ez-Zaitouni, Karen M Fagerli, Robert Landewé, Maikel van Oosterhout, Roberta Ramonda, Monique Reijnierse, Floris A van Gaalen, Désirée van der Heijde
Objectives: To investigate in patients with chronic back pain of a short duration, the utility of adding structural MRI lesions of the SI joints to the imaging criterion of the Assessment of SpondyloArthritis International Society (ASAS) axial SpA (axSpA) criteria and the utility of replacement of radiographic sacroiliitis by structural MRI lesions. Methods: MRI STIR (inflammation, MRI-SI), MRI T1-weighted images (structural lesions, MRI-SI-s) and radiographs of the SI joints of patients in the SPondyloArthritis Caught Early-cohort (chronic back pain: ⩾3 months, ⩽2 years; onset <45 years) were scored by two well-calibrated readers...
March 23, 2018: Rheumatology
Zhipeng Zhang, Di Shi, Qiang Zhang, Si Wang, Kai Liu, Qingtao Meng, Xiaoping Chen
Prehypertension (defined by The Seventh Report of the Joint National Committee on the Prevention, Detection, Evaluation, and Treatment of High Blood Pressure, JNC-7) is relevant to a higher cardiovascular risk than normotensives. Early intervention in this particular population is essential to avoid progression into hypertension (HTN). This study is to explore whether visceral adiposity index (VAI) can strongly predict the incidence of HTN in community-based prehypertensives. A prospective observational cohort study was conducted from September 2011 to June 2012 in urban communities of Chengdu, Sichuan Province, China...
March 22, 2018: Internal and Emergency Medicine
C M Dzialo, P H Pedersen, C W Simonsen, K K Jensen, M de Zee, M S Andersen
The aims of this study were to introduce and validate a novel computationally-efficient subject-specific tibiofemoral joint model. Subjects performed a quasi-static lunge while micro-dose radiation bi-planar X-rays (EOS Imaging, Paris, France) were captured at roughly 0°, 20°, 45°, 60°, and 90° of tibiofemoral flexion. Joint translations and rotations were extracted from this experimental data through 2D-to-3D bone reconstructions, using an iterative closest point optimization technique, and employed during model calibration and validation...
March 10, 2018: Journal of Biomechanics
Ji-An Luo, Si-Wei Pan, Dong-Liang Peng, Zhi Wang, Yan-Jun Li
A constrained least-squares (CLS) 3D source localization method is presented for acoustic sensor networks with sensor position errors. The proposed approach uses angles of arrivals (AOAs) and gain ratios of arrival (GROAs) measured simultaneously at each node to estimate the source position jointly. Compared to AOA-only localization methods, the GROAs can be used in conjunction with AOA measurements so as to get more accurate results by exploiting the geometrical relationship between these two measurements...
March 22, 2018: Sensors
Derek P Lindsey, Ali Kiapour, Scott A Yerby, Vijay K Goel
AIM: To analyze how various implants placement variables affect sacroiliac (SI) joint range of motion. METHODS: An experimentally validated finite element model of the lumbar spine and pelvis was used to simulate a fusion of the SI joint using various placement configurations of triangular implants (iFuse Implant System® ). Placement configurations were varied by changing implant orientation, superior implant length, and number of implants. The range of motion of the SI joint was calculated using a constant moment of 10 N-m with a follower load of 400 N...
March 18, 2018: World Journal of Orthopedics
Qiaojie Chen, Shaokun Wu, Yaojun Wu, Liang Chen, Qingjiang Pang
BACKGROUND: Osteoarthritis (OA) is a degenerative joint disease that with the complication of disability, while inflammation is the important response of OA. MiR-149 was down-regulated in the OA tissues, while the potential mechanism of miR-149 in OA is unclear. METHODS: A total of 20 OA patients and 20 healthy persons were enrolled in the present study. Real-time PCR was used to detect miR-149 and the mRNA expression of TAK1, western blot was used to detect the protein expression of TAK1...
March 7, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Janneke de Winter, Manouk de Hooge, Marleen van de Sande, Henriëtte de Jong, Lonneke van Hoeven, Anoek de Koning, Inger Jorid Berg, Roberta Ramonda, Dominique Baeten, Désirée van der Heijde, Angelique Weel, Robert Landewé
OBJECTIVE: To compare MRI of the sacroiliac joints (MRI-SI) of healthy, symptomless individuals and those with known mechanical strain acting upon SI joints to axial spondyloarthritis (axSpA) and chronic back pain (CBP) patients. METHODS: Three trained, calibrated and blinded readers randomly scored MRI-SI of 172 subjects: 47 healthy individuals without current/past back pain; 47 axSpA patients from the SPondyloArthritis Caught Early (SPACE) cohort (with a previously confirmed positive MRI-SI); 47 CBP controls (irrespective of MRI-SI results) from the SPACE cohort; 7 women with postpartum back pain; and 24 frequent runners...
March 7, 2018: Arthritis & Rheumatology
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