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https://www.readbyqxmd.com/read/28818007/kiwi-omnicup-handheld-vs-mityvac-m-style-conventional-vacuum-system-a-retrospective-observational-study
#1
Tal Weissbach, Nasreen Hag-Yahia, Michal Ovadia, Keren Tzadikevitch Geffen, Omer Weitzner, Tal Biron-Shental
INTRODUCTION: To improve choice of vacuum-assisted delivery (VAD) system, we compared outcomes of Kiwi handheld system and Mityvac M-style conventional system (both use disposable plastic cups). MATERIALS AND METHODS: Retrospective observational study with data collection from electronic medical records. The study was conducted at a tertiary medical center, with approximately 7000 deliveries annually. Categorical and continuous variables were analyzed using chi-square test and t-test, respectively...
August 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28809634/-wear-and-roughness-of-bearing-surface-in-retrieved-polyethylene-bicon-plus-cups
#2
M Ranuša, J Gallo, M Hobza, M Vrbka, D Nečas, M Hartl
PURPOSE OF THE STUDY By 7th December 2016, 4,755 Bicon-Plus cups in total were implanted in the Czech Republic. Some of them have been continuously re-operated, while the most frequent reason of failure is polyethylene wear and aseptic loosening. The present study is focused on surface analysis of retrieved polyethylene Bicon-Plus cups and the determination of the roughness of their bearing surfaces. MATERIAL AND METHODS In this study, we had 13 high molecular weight polyethylene cups with the average time in situ of 8...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28803815/patient-specific-contact-stress-does-not-predict-polyethylene-wear-rate-in-a-specific-pressfit-cup
#3
Georg Matziolis, Linda Krakow, Frank Layher, Klaus Sander, Joerg Bossert, Steffen Brodt
BACKGROUND: The most common reason for revision total hip arthroplasty remains polyethylene wear. Development dysplasia of the hip and revision situations requires a conscious compromise of implant position. The surgeon should know about the consequence on wear via a possible change in hip contact force. The objective of this study is to investigate whether annual wear is dependent on hip contact force. METHODS: Forty-five inserts (DuraLoc, DePuy) that were explanted in our department were included...
July 25, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28797550/optical-coherence-tomography-angiography-of-the-peripapillary-retina-in-primary-angle-closure-glaucoma
#4
Shunhua Zhang, Chan Wu, Liang Liu, Yali Jia, Yao Zhang, Yang Zhang, Hua Zhang, Yong Zhong, David Huang
PURPOSE: To measure the change of peripapillary retinal vessel density (VD) in eyes with a history of acute primary angle closure glaucoma (PACG). DESIGN: Case-control study. METHODS: Twenty-one consecutive Chinese patients with history of unilateral acute PACG were enrolled. Eyes with acute PACG constituted the case group, while the contralateral eyes without attack constituted the control. All patients underwent ophthalmic examinations including best-corrected visual acuity, intraocular pressure, and visual field (VF)...
August 7, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28794584/changes-in-spinopelvic-indices-after-hip-arthroplasty-and-its-influence-on-acetabular-component-orientation
#5
Siddharth Mahesh Shah, Selin Munir, William Lindsay Walter
OBJECTIVE: To evaluate spinopelvic changes after hip arthroplasty in standing and ready-to-rise positions. METHODS: We compared pelvic tilt, sacral slope, cobb's angle, and hip flexion on pre and postoperative spinopelvic radiographs. RESULTS: Standing: All postoperative indices were similar to preoperative ones except sacral slope (mean difference:1.6°, p = 0.046). Ready-to-rise: All postoperative indices were similar to preoperative ones except pelvic tilt which was significantly greater postoperatively (mean difference: 5...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28793827/kiwi-omnicup-handheld-vs-mityvac-m-style-conventional-vacuum-system-a-retrospective-observational-study
#6
Tal Weissbach, Nasreen Hag-Yahia, Michal Ovadia, Keren Tzadikevitch Geffen, Omer Weitzner, Tal Biron-Shental
INTRODUCTION: To improve choice of vacuum-assisted delivery (VAD) system, we compared outcomes of Kiwi handheld system and Mityvac M-style conventional system (both use disposable plastic cups). MATERIALS AND METHODS: Retrospective observational study with data collection from electronic medical records. The study was conducted at a tertiary medical center, with approximately 7000 deliveries annually. Categorical and continuous variables were analyzed using chi-square test and t-test, respectively...
August 9, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28790467/current-concepts-in-acetabular-positioning-in-total-hip-arthroplasty
#7
Deepu Bhaskar, Asim Rajpura, Tim Board
Being one of the most successful surgeries in the history of medicine, the indications for total hip arthroplasty have widened and are increasingly being offered to younger and fitter patients. This has also led to high expectations for longevity and outcomes. Acetabular cup position has a significant impact on the results of hip arthroplasty as it affects dislocation, abductor muscle strength, gait, limb lengths, impingement, noise generation, range of motion (ROM), wear, loosening, and cup failure. The variables in cup position are depth, height, and angular position (anteversion and inclination)...
July 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28782077/a-retrospective-study-on-the-relationship-between-altered-native-acetabular-angle-and-vertical-implant-malpositioning
#8
Jorge Rojas, Maria Bautista, Guillermo Bonilla, Omar Amado, Elina Huerfano, Daniel Monsalvo, Adolfo Llinás, José Navas
PURPOSE: Acetabular cup positioning in extreme angles of vertical position affects both stability and long-term survivorship of total hip arthroplasty. The purpose of this study is to determine whether native Sharp's angle is associated with an increased abduction angle of the acetabular component. METHODS: Consecutive patients who underwent primary total hip replacement between February 2012 and August 2015 were included. Vertical positioning of acetabular implant in the antero-posterior post-operative radiographs were measured...
August 7, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28781016/blood-metal-ion-levels-have-limited-utility-in-the-surveillance-of-asymptomatic-large-head-metal-on-metal-total-hip-arthroplasties
#9
Manish Kiran, Deepak Shivarathre, Viju K Peter
BACKGROUND: Blood cobalt (Co) and chromium (Cr) ion levels have been used as surveillance tools for adverse reaction to metal debris (ARMD) in metal-on-metal (MoM) articulations with varying thresholds in different countries. The aim of our study is to present the serial 12-year blood Co and Cr levels in a cohort of MoM total hip arthroplasties (THAs) with femoral head size ≥36 mm and analyze their utility in asymptomatic patients at current thresholds. METHODS: A total of 256 patients with unilateral MoM THA with femoral head size ≥36 mm were included in this study with data collected prospectively...
July 20, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28768299/a-prospective-investigation-of-coffee-drinking-and-bladder-cancer-incidence-in-the-united-states
#10
Erikka Loftfield, Neal D Freedman, Maki Inoue-Choi, Barry I Graubard, Rashmi Sinha
BACKGROUND: In 1991, coffee was classified as a group 2B carcinogen, possibly carcinogenic to humans, based on limited epidemiologic evidence of a positive association with bladder cancer. In 2016, the International Agency for Research on Cancer downgraded this classification due to lack of evidence from prospective studies particularly for never smokers. METHODS: Baseline coffee drinking was assessed with a food frequency questionnaire in the NIH-AARP prospective cohort study...
September 2017: Epidemiology
https://www.readbyqxmd.com/read/28764697/femur-first-surgical-technique-a-smart-non-computer-based-procedure-to-achieve-the-combined-anteversion-in-primary-total-hip-arthroplasty
#11
Mattia Loppini, Umile Giuseppe Longo, Emanuele Caldarella, Antonello Della Rocca, Vincenzo Denaro, Guido Grappiolo
BACKGROUND: The relevance of prosthetic component orientation to prevent dislocation and impingement following total hip arthroplasty (THA) has been widely accepted. We investigated the use of a non-computer-based surgery to address the reciprocal orientation of the acetabular and femoral components. METHODS: In the femur first technique, the cup is positioned relative to the stem. When the definitive antetorsion of femoral component is fixed, the cup is positioned in a compliant anteversion to the stem...
August 1, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28751477/associations-of-coffee-drinking-and-cancer-mortality-in-the-cancer-prevention-study-ii
#12
Susan M Gapstur, Rebecca L Anderson, Peter T Campbell, Eric J Jacobs, Terryl J Hartman, Janet S Hildebrand, Ying Wang, Marjorie L McCullough
BACKGROUND: Associations of coffee consumption with cancer mortality are inconsistent for many types of cancer, and confounding by smoking is an important concern. METHODS: Cox proportional hazards regression was used to estimate multivariable-adjusted hazard ratios (HR) for coffee consumption associated with death from all cancers combined and from specific cancer types among 922,896 Cancer Prevention Study-II participants aged 28-94 years who completed a four-page questionnaire and were cancer free at baseline in 1982...
July 27, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28739100/movement-of-retinal-vessels-toward-the-optic-nerve-head-after-increasing-intraocular-pressure-in-monkey-eyes-with-experimental-glaucoma
#13
Atsumi Kuroda, Nobuko Enomoto, Kyoko Ishida, Masamitsu Shimazawa, Tetsuro Noguchi, Naoto Horai, Hirotaka Onoe, Hideaki Hara, Goji Tomita
A shift or displacement of the retinal blood vessels (RBVs) with neuroretinal rim thinning indicates the progression of glaucomatous optic neuropathy. In chronic open angle glaucoma, individuals with RBV positional shifts exhibit more rapid visual field loss than those without RBV shifts. The retinal vessels reportedly move onto the optic nerve head (ONH) in response to glaucoma damage, suggesting that RBVs are pulled toward the ONH in response to increased cupping. Whether this phenomenon only applies to RVBs located in the vicinity or inside the ONH or, more generally, to RBVs also located far from the ONH, however, is unclear...
September 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28734546/whole-breast-radiotherapy-in-the-lateral-isocentric-lateral-decubitus-position-long-term-efficacy-and-toxicity-results
#14
Estelle Bronsart, Sylvain Dureau, Hao Ping Xu, Louis Bazire, Anne Chilles, Emilie Costa, Christelle Logerot, Marie-Christine Falcou, Francois Campana, Frédérique Berger, Alain Fourquet, Youlia M Kirova
PURPOSE: To evaluate previously published whole breast radiotherapy (WBRT) using ILD (isocentring lateral decubitus) technique in terms of toxicity and efficacy. MATERIALS AND METHODS: From 2006 to 2010, 832 female patients with early-stage breast cancer (BC) treated by conservative surgery underwent 3D-conformal WBRT-ILD at Institut Curie. The acute toxicity of treatment was evaluated weekly and the late toxicity (6months and later after the treatment) was evaluated every 6months till the 5th year after the end of the radiotherapy using NCI CTC v3...
July 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28731487/intraoperative-fluoroscopy-with-a-direct-anterior-approach-reduces-variation-in-acetabular-cup-abduction-angle
#15
Gens P Goodman, Nitin Goyal, Nancy L Parks, Robert H Hopper, William G Hamilton
INTRODUCTION: The purpose of this study was to compare acetabular cup position for 2 cohorts of total hip arthroplasty (THA) patients who had a direct anterior approach. METHODS: 100 THA cases were performed with an anterior approach using intraoperative fluoroscopy (IF) to aid in cup positioning. Another group of 100 cases underwent THA with an anterior approach without the use of any fluoroscopy. Postoperative abduction and anteversion angles were measured using Martell's hip analysis software...
July 19, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28712802/efficacy-of-a-pelvic-lateral-positioner-with-a-mechanical-cup-navigator-based-on-the-anatomical-pelvic-plane-in-total-hip-arthroplasty
#16
Kentaro Iwakiri, Akio Kobayashi, Yoichi Ohta, Yukihide Minoda, Kunio Takaoka, Hiroaki Nakamura
BACKGROUND: The acetabular component orientation in total hip arthroplasty (THA) is of critical importance to the good clinical results. However, traditional widely used cup alignment guides for cup placement are reported to be relatively unreliable. The present study aims at comparing a novel cup alignment guide, which can be attached to our anatomical pelvic plane (APP) pelvic lateral positioner for reducing discrepancies in sagittal pelvic tilt and indicate a targeted cup angle based on the APP, with a conventional cup alignment guide...
June 27, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28705707/gata3-as-a-valuable-marker-to-distinguish-clear-cell-papillary-renal-cell-carcinomas-from-morphologic-mimics
#17
Jose G Mantilla, Tatjana Antic, Maria Tretiakova
Clear cell papillary renal cell carcinoma (CCPRCC) is a low-grade, indolent neoplasm, with no reported cases of death from disease or metastasis. These lesions can show clinical, morphologic and immunophenotypic overlap with several aggressive forms of renal cell carcinoma (RCC), including clear cell (CCRCC), translocation RCC and papillary RCC (PRCC) with cytoplasmic clearing. Given the difference in behavior, it is important to reliably separate these entities. We retrospectively reviewed 47 tumors from 45 patients with morphologic features of CCPRCC...
July 10, 2017: Human Pathology
https://www.readbyqxmd.com/read/28702908/water-quality-and-health-in-northern-canada-stored-drinking-water-and-acute-gastrointestinal-illness-in-labrador-inuit
#18
Carlee J Wright, Jan M Sargeant, Victoria L Edge, James D Ford, Khosrow Farahbakhsh, Inez Shiwak, Charlie Flowers, Sherilee L Harper
One of the highest self-reported incidence rates of acute gastrointestinal illness (AGI) in the global peer-reviewed literature occurs in Inuit communities in the Canadian Arctic. This high incidence of illness could be due, in part, to the consumption of contaminated water, as many northern communities face challenges related to the quality of municipal drinking water. Furthermore, many Inuit store drinking water in containers in the home, which could increase the risk of contamination between source and point-of-use (i...
July 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28702750/function-and-activity-after-minimally-invasive-total-hip-arthroplasty-compared-to-a-healthy-population
#19
Eberhard von Rottkay, Lars Rackwitz, Maximilian Rudert, Ulrich Nöth, Johannes Christian Reichert
PURPOSE: The aim of the present study was to compare the daily activity and functionality in a patient cohort 12 months after total hip arthroplasty (THA) using a direct anterior approach with a healthy non-operated control population. METHODS: Sixty-four patients who underwent THA and 59 healthy individuals (control) were assessed regarding their daily activity and joint functionality utilizing the Harris hip score (HHS), the extra short musculoskeletal functional assessment questionnaire (XSFMA), the Short Form 36 (SF-36) health survey and a Stepwatch™ Activity Monitor (SAM)...
July 12, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28700125/optical-assessment-of-mammographic-breast-density-by-a-12-wavelength-versus-a-continuous-spectrum-optical-spectroscopy-device
#20
E Jane Walter, Lothar Lilge
A 12-laser-wavelength, fixed source-detector position, cup-based optical breast spectroscopy (OBS) device was developed for use in large-scale, multi-center trials as a mammographic breast density (MBD) quantification and breast cancer risk pre-screening tool. In this study, the device was evaluated in comparison with a spectrometer-based device used in previous studies. The devices were compared on their ability to predict mammographic percent density (MPD) and to identify women with high MBD from optical spectra...
July 12, 2017: Journal of Biophotonics
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