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https://www.readbyqxmd.com/read/28629942/can-a-target-zone-safer-than-lewinnek-s-safe-zone-be-defined-to-prevent-instability-of-total-hip-arthroplasties-case-control-study-of-56-dislocated-tha-and-93-matched-controls
#1
N Reina, S Putman, R Desmarchelier, E Sari Ali, P Chiron, M Ollivier, J Y Jenny, D Waast, C Mabit, E de Thomasson, C Schwartz, P Oger, L E Gayet, H Migaud, N Ramdane, M H Fessy
BACKGROUND: Various factors contribute to instability of total hip arthroplasty (THA), with implant orientation being a major contributor. We performed a case-control study with computed tomography (CT) data to determine whether 1) orientation contributes to THA instability and 2) a safer target zone for stability than Lewinnek's classic safe zone can be defined. MATERIAL AND METHODS: We included prospectively 363 cases of THA dislocation that occurred during the calendar 2013 year in 24 participating hospitals...
June 16, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28625687/can-surgeons-reduce-the-risk-for-dislocation-after-primary-total-hip-arthroplasty-performed-using-the-posterolateral-approach
#2
Kurt G Seagrave, Anders Troelsen, Bjørn G Madsen, Henrik Husted, Thomas Kallemose, Kirill Gromov
BACKGROUND: Hip dislocation is one of the most common postoperative complications after total hip arthroplasty (THA). Potential contributors include patient- and surgical-related factors. We performed a retrospective cohort study to identify risk factors for postoperative dislocation in patients receiving THA via the posterolateral approach. METHODS: We assessed 1326 consecutive primary THAs performed between 2010 and 2015. Patient information was documented, and plain radiographic films were used to evaluate cup positioning, hip offset, and hip length change...
May 4, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28615124/blood-and-milk-polymorphonuclear-leukocyte-and-monocyte-macrophage-functions-in-naturally-caprine-arthritis-encephalitis-virus-infection-in-dairy-goats
#3
Bruna Parapinski Santos, Fernando Nogueira Souza, Maiara Garcia Blagitz, Camila Freitas Batista, Heloísa Godoi Bertagnon, Soraia Araújo Diniz, Marcos Xavier Silva, João Paulo Amaral Haddad, Alice Maria Melville Paiva Della Libera
The exact influence of caprine arthritis encephalitis virus (CAEV) infection on blood and milk polymorphonuclear leukocytes (PMNLs) and monocyte/macrophages of goats remains unclear. Thus, the present study sought to explore the blood and milk PMNL and monocyte/macrophage functions in naturally CAEV-infected goats. The present study used 18 healthy Saanen goats that were segregated according to sera test outcomes into serologically CAEV negative (n=8; 14 halves) and positive (n=10; 14 halves) groups. All milk samples from mammary halves with milk bacteriologically positive outcomes, somatic cell count ≥2×10(6)cellsmL(-1), and abnormal secretions in the strip cup test were excluded...
June 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28605001/determination-of-structural-femoral-head-allograft-viability-and-integrity-with-a-novel-diagnostic-tool-spect-ct-a-preliminary-study
#4
Kasım Kilicarslan, Nadir Yalcin, Vedat Bicici, Elif Ozdemir, Izzet Bingol, Seyda Turkolmez
OBJECTIVE: To evaluate the viability and integrity of fresh frozen bulk femoral head allografts obtained from the institutional bone bank that were used to reconstruct severe acetabular defects and to validate the SPECT/CT method which gives both anatomical and functional data for this purpose. METHODS: We retrospectively reviewed 9 patients (6 female, 3 male; mean age 63.6 years). Preoperative and postoperative leg lengths, existence of the Trendelenburg sign, range of motion of the hip, visual analogue score (VAS), Harris Hip Score (HHS) and any complication were assesed at each follow-up...
June 2, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28592072/-effects-of-trabecular-metal-augments-for-the-reconstruction-of-paprosky-type-%C3%A2-acetabulum-bone-defects
#5
Y Q Du, Y G Zhou, S Piao, W M Wu, H Y Ma, Z S Gao, J Y Sun, C Zheng, S Wang
Objective: To investigate the methods and short-time clinical results of reconstruction of Paprosky type Ⅲ acetabulum bone defects by using tantalum augments. Methods: A total of 17 patients (17 hips) with Paprosky type Ⅲ acetabulum bone defects, treated with tantalum augments in revision of total hip arthroplasty at Department of Orthopedics Surgery in General Hospital of Chinese People's Liberation Army were retrospectively analyzed from March 2014 to May 2016.There were 6 males and 11 females aged from 23 to 74 years with an average of (50...
June 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28589997/how-coffee-affects-metabolic-syndrome-and-its-components
#6
REVIEW
B Baspinar, G Eskici, A O Ozcelik
Metabolic syndrome, with its increasing prevalence, is becoming a major public health problem throughout the world. Many risk factors including nutrition play a role in the emergence of metabolic syndrome. Of the most-consumed beverages in the world, coffee contains more than 1000 components such as caffeine, chlorogenic acid, diterpenes and trigonelline. It has been proven in many studies that coffee consumption has a positive effect on chronic diseases. In this review, starting from the beneficial effects of coffee on health, the relationship between coffee consumption and metabolic syndrome and its components has been investigated...
June 7, 2017: Food & Function
https://www.readbyqxmd.com/read/28579788/primary-angle-closure-glaucomas-disturb-regional-spontaneous-brain-activity-in-the-visual-pathway-an-fmri-study
#7
Wei Chen, Li Zhang, Yong-Gen Xu, Kai Zhu, Man Luo
OBJECTIVE: To explore the underlying regional brain activity deficits in the visual cortex in patients with primary angle-closure glaucoma (PACG) relative to normal controls (NCs) using regional homogeneity (ReHo) method, and its relationship with behavioral performances. PATIENTS: Twenty PACG patients (10 females, 10 males; mean age ± standard deviation [SD]: 54.42±9.46 years) and 20 age-, and sex status-matched NCs (10 females, 10 males; mean age ± SD: 53.75±9...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28579018/does-using-a-polyethylene-rm-press-fit-cup-modify-the-preparation-of-the-acetabulum-and-acetabular-offset-in-primary-hip-arthroplasty
#8
Roger Erivan, Sylvain Aubret, Guillaume Villatte, Aurélien Mulliez, Stéphane Descamps, Stéphane Boisgard
INTRODUCTION: When performing total hip arthroplasty (THA), it is important to maintain the femoral and acetabular offsets to ensure good joint stability and to restore the function of the hip abductor muscles. In our practice, we mainly use a lateralized stem and hollow out the acetabulum to the quadrilateral plate to accommodate a press-fit polyethylene cup. However, the repercussions of this preparation method, which is driven by the cup's design, are not known. We carried out a retrospective study to assess 1) the changes in the femoral and acetabular offset, 2) the height of the center of rotation, and 3) the repercussions on wear...
June 1, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28578842/what-is-the-impact-of-a-spinal-fusion-on-acetabular-implant-orientation-in-functional-standing-and-sitting-positions
#9
Jean Y Lazennec, Ian C Clark, Dominique Folinais, Imen N Tahar, Aidin E Pour
BACKGROUND: This study used EOS imaging of primary total hip arthroplasty (THA) patients, with and without predating spinal fusion, to investigate (1) the impact of spinal fusion on acetabular implant anteversion and inclination, and (2) whether more extensive spinal fusion (fusion starting above the thoracolumbar junction or extension of fusion to the sacrum) affects acetabular implant orientation differently than lumbar only spinal fusion. METHODS: Ninety-three patients had spinal fusion (case group), and 150 patients were without spinal fusion (controls)...
May 5, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28577860/glaucoma
#10
REVIEW
Jost B Jonas, Tin Aung, Rupert R Bourne, Alain M Bron, Robert Ritch, Songhomitra Panda-Jonas
Glaucoma is a heterogeneous group of diseases characterised by cupping of the optic nerve head and visual-field damage. It is the most frequent cause of irreversible blindness worldwide. Progression usually stops if the intraocular pressure is lowered by 30-50% from baseline. Its worldwide age-standardised prevalence in the population aged 40 years or older is about 3·5%. Chronic forms of glaucoma are painless and symptomatic visual-field defects occur late. Early detection by ophthalmological examination is mandatory...
May 31, 2017: Lancet
https://www.readbyqxmd.com/read/28571575/active-case-finding-for-tuberculosis-by-mobile-teams-in-myanmar-yield-and-treatment-outcomes
#11
Ohnmar Myint, Saw Saw, Petros Isaakidis, Mohammed Khogali, Anthony Reid, Nguyen Binh Hoa, Thi Thi Kyaw, Ko Ko Zaw, Tin Mi Mi Khaing, Si Thu Aung
BACKGROUND: Since 2005, the Myanmar National Tuberculosis Programme (NTP) has been implementing active case finding (ACF) activities involving mobile teams in hard-to-reach areas. This study revealed the contribution of mobile team activities to total tuberculosis (TB) case detection, characteristics of TB patients detected by mobile teams and their treatment outcomes. METHODS: This was a descriptive study using routine programme data between October 2014 and December 2014...
June 2, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28567577/does-the-surgical-approach-influence-the-implant-alignment-in-total-hip-arthroplasty-comparative-study-between-the-direct-anterior-and-the-anterolateral-approaches-in-the-supine-position
#12
Yuya Kawarai, Satoshi Iida, Junichi Nakamura, Yoshiyuki Shinada, Chiho Suzuki, Seiji Ohtori
PURPOSE: The purpose of this study was to clarify the difference in implant alignment between the direct anterior approach (DAA) and the anterolateral approach in the supine position (ALS). METHODS: A retrospective comparative study consisted of 215 consecutive primary total hip arthroplasties using tapered polished and straight cemented-stems via two different minimally invasive approaches (DAA group in 106 hips and ALS group in 109 hips). RESULTS: The cup radiographic anteversion angle was significantly lower in the ALS group than in the DAA group (12...
May 31, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28559196/quantifying-pelvic-motion-during-total-hip-arthroplasty-using-a-new-surgical-navigation-device
#13
Ran Schwarzkopf, Jeffrey M Muir, Wayne G Paprosky, Scott Seymour, Michael B Cross, Jonathan M Vigdorchik
BACKGROUND: Accurate cup positioning is one of the most challenging aspects of total hip arthroplasty (THA). Undetected movement of the patient during THA surgery can lead to inaccuracies in cup anteversion and inclination, increasing the potential for dislocation and revision surgery. Investigations into the magnitude of patient motion during THA are not well represented in the literature. METHODS: We analyzed intraoperative pelvic motion using a novel navigation device used to assist surgeons with cup position, leg length, and offset during THA...
May 4, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28558114/three-dimensional-templating-for-acetabular-component-alignment-during-total-hip-arthroplasty
#14
Ameer M Elbuluk, Paul Wojack, Nima Eftekhary, Jonathan M Vigdorchik
Appropriate placement of the acetabular cup is an important determinant of implant stability and longevity. Malposition of acetabular cups negatively influences prosthesis survival and leads to an increased dislocation rate. The objective of the study was to determine the role of 3-dimensional templating in obtaining accurate acetabular component placement in total hip arthroplasty. In this computed tomography-based study, the authors identified 93 patients who underwent primary total hip arthroplasty with computer-assisted navigation...
May 30, 2017: Orthopedics
https://www.readbyqxmd.com/read/28557580/assessment-of-optic-nerve-head-pallor-in-primary-open-angle-glaucoma-patients-and-healthy-subjects
#15
Lisa Ramm, Birte Schwab, Richard Stodtmeister, Martin Hammer, Lydia Sauer, Eberhard Spörl, Lutz E Pillunat, Naim Terai
PURPOSE: To investigate optic nerve head (ONH) pallor quantitatively in patients with primary open-angle glaucoma (POAG) and in healthy subjects, and to examine the relationship to mean deviation in perimetry (MD), cup-disk ratio (CDR), and diameters of retinal vessels. METHODS: A total of 89 POAG patients (67.6 ± 11.1 years) and 48 healthy subjects (63.3 ± 14 years) were included. A dual-bandpass transmission filter was introduced in the illumination path of the fundus camera of the Dynamic Vessel Analyzer (Imedos Systems UG) and two monochromatic images at different wavelenghts (548 ± 10 and 610 ± 10 nm) were recorded simultaneously...
May 30, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28556582/precision-and-accuracy-of-imageless-navigation-versus-freehand-implantation-of-total-hip-arthroplasty-a-systematic-review-and-meta-analysis
#16
REVIEW
Thom Snijders, S M van Gaalen, A de Gast
BACKGROUND: Total hip arthroplasty (THA) is named the most successful surgical procedure of the twentieth century. To remain a success in the twenty-first century THA should meet the higher demands of patients and society with regard to technical and functional outcome, costs and implant survival. To meet these demands optimal acetabular cup positioning is necessary. An imageless navigation system (NAV) might prevent malpositioning of the acetabular cup in THA. The aim of this study has been to compare the precision and accuracy of the anteversion and inclination of the acetabular cup position after NAV implantation and after freehand implantation of THA...
May 29, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28552919/methods-for-acquiring-data-on-terrain-geomorphology-course-geometry-and-kinematics-of-competitors-runs-in-alpine-skiing-a-historical-review
#17
Włodzimierz S Erdmann, Vassilis Giovanis, Piotr Aschenbrenner, Vaios Kiriakis, Andrzej Suchanowski
PURPOSE: This paper aims at the description and comparison of methods of topographic analysis of racing courses at all disciplines of alpine skiing sports for the purposes of obtaining: terrain geomorphology (snowless and with snow), course geometry, and competitors' runs. METHODS: The review presents specific methods and instruments according to the order of their historical appearance as follows: (1) azimuth method with the use of a compass, tape and goniometer instruments; (2) optical method with geodetic theodolite, laser and photocells; (3) triangulation method with the aid of a tape and goniometer; (4) image method with the use of video cameras; (5) differential global positioning system and carrier phase global positioning system methods...
2017: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/28545734/cup-to-disc-ratio-asymmetry-in-u-s-adults-prevalence-and-association-with-glaucoma-in-the-2005-2008-national-health-and-nutrition-examination%C3%A2-survey
#18
Mary Qiu, Michael V Boland, Pradeep Y Ramulu
PURPOSE: To describe the prevalence of vertical cup-to-disc ratio (vCDR) asymmetry in U.S. adults and assess the utility of vCDR asymmetry in the diagnosis of glaucoma. DESIGN: Cross-sectional study. PARTICIPANTS: A total of 5359 subjects aged ≥40 years from the 2005-2008 National Health and Nutrition Examination Survey (NHANES). METHODS: Subjects completed retinal photography and had vCDR determined in both eyes, with vCDR asymmetry calculated as the absolute value of the difference between the 2 eyes...
May 22, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28542504/level-of-surgical-experience-is-associated-with-change-in-hip-center-of-rotation-following-cementless-total-hip-arthroplasty-a-radiographic-assessment
#19
Seung-Chan Kim, Young-Wook Lim, Soon-Yong Kwon, Woo-Lam Jo, Sung-Hun Ju, Chan-Joo Park, Choong-Woo Lee, Yong-Sik Kim
OBJECTIVES: After total hip arthroplasty (THA), restoration of hip center of rotation (COR) is essential to ensure stability of the prosthetic hip and longevity of the prosthesis. Our aim was to determine whether, and how, the COR changed postoperatively compared to the native COR following implantation of a cementless acetabular component in anatomical position and to compare the accuracy of cup placement between two surgeons with different levels of surgical experience. MATERIALS AND METHODS: We evaluated 145 patients (145 hips) who underwent unilateral primary THA, who had no distorted acetabulum on the affected hip and a normal contralateral hip...
2017: PloS One
https://www.readbyqxmd.com/read/28537348/a-cadaver-study-to-evaluate-the-accuracy-of-a-new-3d-mini-optical-navigation-tool-for-total-hip-arthroplasty
#20
Jonathan M Vigdorchik, Michael B Cross, Eric A Bogner, Theodore T Miller, Jeffrey M Muir, Ran Schwarzkopf
BACKGROUND: Accurate measurement of acetabular cup position (CP), changes in leg length (LL), and offset (OS) are paramount in ensuring proper sizing and implantation of components during total hip arthroplasty (THA). LL/OS inaccuracies can cause low back pain, neurological deficits, and patient dissatisfaction, while inaccurate positioning of the acetabular cup can lead to instability, dislocation, and, ultimately, revision surgery. The objective of this study was to evaluate the accuracy of a mini-navigation tool in measuring CP and LL/OS differential during THA...
May 24, 2017: Surgical Technology International
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