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https://www.readbyqxmd.com/read/28110243/a-biomechanical-testing-system-to-determine-micromotion-between-hip-implant-and-femur-accounting-for-deformation-of-the-hip-implant-assessment-of-the-influence-of-rigid-body-assumptions-on-micromotions-measurements
#1
Steven Leuridan, Quentin Goossens, Jorg Roosen, Leonard Pastrav, Kathleen Denis, Michiel Mulier, Wim Desmet, Jos Vander Sloten
BACKGROUND: Accurate pre-clinical evaluation of the initial stability of new cementless hip stems using in vitro micromotion measurements is an important step in the design process to assess the new stem's potential. Several measuring systems, linear variable displacement transducer-based and other, require assuming bone or implant to be rigid to obtain micromotion values or to calculate derived quantities such as relative implant tilting. METHODS: An alternative linear variable displacement transducer-based measuring system not requiring a rigid body assumption was developed in this study...
January 16, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28109993/epilepsy-associated-levels-of-perceived-stigma-their-associations-with-treatment-and-related-factors-a-cross-sectional-study-in-urban-and%C3%A2-rural-areas-in-ecuador
#2
Jaime Luna, Mandy Nizard, Danielle Becker, Daniel Gerard, Alejandro Cruz, Voa Ratsimbazafy, Michel Dumas, Marcelo Cruz, Pierre-Marie Preux
BACKGROUND: Epilepsy is felt to be a stigmatizing condition. Stigma has been considered one of the major factors contributing to the burden of epilepsy and to the treatment gap. Stigma has a negative effect on the management of people with epilepsy (PWE). Furthermore, lack of information and inappropriate beliefs are still the factors that most contribute to stigma and discrimination. In this study, we assessed the level of perceived stigma in urban and rural areas and we report their association with in antiepileptic drug (AED) use, effects on seeking medical care, and stigma-associated factors...
January 18, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28109902/deriving-freshwater-safety-thresholds-for-hexabromocyclododecane-and-comparison-of-toxicity-of-brominated-flame-retardants
#3
Liang Dong, Lei Zheng, Suwen Yang, Zhenguang Yan, Weidong Jin, Yuhong Yan
Hexabromocyclododecane (HBCD) is a brominated flame retardant used throughout the world. It has been detected in various environmental media and has been shown toxic to aquatic life. The toxic effects of HBCD to aquatic organisms in Chinese freshwater ecosystems are discussed here. Experiments were conducted with nine types of acute toxicity testing and three types of chronic toxicity testing. After comparing a range of species sensitivity distribution models, the optimal model of Bull III was used to derive the safety thresholds for HBCD...
January 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28109860/revision-surgery-for-primary-spinal-tumor-too-little-too-late
#4
Fabio Torregrossa, Alessandro Landi, Giovanni Grasso
No abstract text is available yet for this article.
January 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28109762/higher-modified-charlson-index-scores-are-associated-with-increased-incidence-of-complications-transfusion-events-and-length-of-stay-following-revision-hip-arthroplasty
#5
Nikita Lakomkin, Vadim Goz, Claudette M Lajam, Richard Iorio, Joseph A Bosco
BACKGROUND: Revision total hip arthroplasty (RHA) has been associated with greater morbidity and length of stay (LOS) compared to primary total hip arthroplasty. Despite this, few validated metrics exist for risk stratification in RHA cohorts. The Charlson Comorbidity Index (CCI) has been associated with complications in total hip arthroplasty, but its utility in revision surgery remains unexplored. The purpose of this study was to examine the relationship between preoperative CCI and a variety of outcome metrics following RHA...
November 17, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28109761/survivorship-of-metaphyseal-sleeves-in-revision-total-knee-arthroplasty
#6
Brian P Chalmers, Nicholas M Desy, Mark W Pagnano, Robert T Trousdale, Michael J Taunton
BACKGROUND: Metaphyseal fixation has promising early results in providing component stability and fixation in revision total knee arthroplasty (TKA). However, there are limited studies on midterm results of metaphyseal sleeves. We analyzed complications, rerevisions, and survivorship free of revision for aseptic loosening of metaphyseal sleeves in revision TKA. METHODS: Two hundred eighty patients with 393 metaphyseal sleeves (144 femoral, 249 tibial) implanted during revision TKA from 2006-2014 were reviewed...
December 14, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28109760/effectiveness-of-constrained-liner-use-during-harrington-hip-reconstruction-in-oncology-patient
#7
Deren T Bagsby, L Daniel Wurtz
BACKGROUND: Patients with destructive acetabular lesions are at high risk for morbidity. Harrington described reinforcing acetabular diseased bone with methylmethacrylate, supplemented by metal fixation, to allow total hip reconstruction. However, all published studies using this technique report dislocations. We believe that initial use of constrained liners would help alleviate dislocation risk, without increasing component loosening or polyethylene wear. METHODS: Sixty-eight patients who underwent Harrington hip arthroplasties for metastatic cancer from August 2005 to March 2015 were identified...
November 27, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28109672/optimizing-follow-up-after-anatomic-total-shoulder-arthroplasty
#8
Bradley Schoch, Jean David Werthel, Cathy D Schleck, William S Harmsen, John Sperling, Joaquín Sánchez-Sotelo, Robert H Cofield
BACKGROUND: With increases in both total shoulder arthroplasty (TSA) volumes and patient life expectancies, the number of patients requiring follow-up after shoulder arthroplasty continues to grow exponentially. The purpose of this study is to establish a data-based follow-up schedule minimizing unnecessary patient and health care system costs without sacrificing patient care. METHODS: Between January 1975 and January 2013, 2786 consecutive anatomic TSAs were performed at our institution...
January 19, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28109647/post-traumatic-stress-disorder-and-cancer
#9
REVIEW
Matthew J Cordova, Michelle B Riba, David Spiegel
Being diagnosed with and treated for cancer is highly stressful and potentially traumatic. An extensive literature has evaluated the prevalence, predictors, and correlates of cancer-related post-traumatic stress disorder (PTSD) symptoms and diagnoses. In this qualitative review of cancer-related PTSD literature, we highlight conceptual, methodological, and diagnostic issues, and identify clinical implications and areas for future research. Cancer-related PTSD has been documented in a minority of patients with cancer and their family members, is positively associated with other indices of distress and reduced quality of life, and has several correlates and risk factors (eg, prior trauma history, pre-existing psychiatric conditions, poor social support)...
January 18, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28109562/primary-cesarean-delivery-patterns-among-women-with-physical-sensory-or-intellectual-disabilities
#10
Blair G Darney, Frances M Biel, Brian P Quigley, Aaron B Caughey, Willi Horner-Johnson
BACKGROUND: Little is known about the relationship between disability and mode of delivery. Prior research has indicated elevated risk of cesarean delivery among women with certain disabilities, but has not examined patterns across multiple types of disability or by parity. OBJECTIVE: This study sought to determine whether physical, sensory, or intellectual and developmental disabilities are independently associated with primary cesarean delivery. METHODS: We conducted a retrospective cohort study of all deliveries in California from 2000 to 2010 using linked birth certificate and hospital discharge data...
January 18, 2017: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/28109560/etiologies-trends-and-predictors-of-30-day-readmission-in-patients-with-heart-failure
#11
Shilpkumar Arora, Prashant Patel, Sopan Lahewala, Nilay Patel, Nileshkumar J Patel, Kosha Thakore, Aditi Amin, Byomesh Tripathi, Varun Kumar, Harshil Shah, Mahek Shah, Sidakpal Panaich, Abhishek Deshmukh, Apurva Badheka, Umesh Gidwani, Radha Gopalan
Heart failure (HF) is the most common discharge diagnosis across the United States, and these patients are particularly vulnerable to readmissions, increasing attention to potential ways to address the problem. The study cohort was derived from the Healthcare Cost and Utilization Project's National Readmission Data 2013, sponsored by the Agency for Healthcare Research and Quality. HF was identified using appropriate International Classification of Diseases, Ninth Revision, Clinical Modification codes. Readmission was defined as a subsequent hospital admission within 30 days after discharge day of index admission...
December 14, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/28109470/the-fate-of-the-free-flap-pedicle-after-free-tissue-transfer-to-the-head-and-neck-area
#12
Maarten L V Van Genechten, Martin D Batstone
OBJECTIVES: Little is understood about what happens to the vascular pedicle following free tissue transfer in the head and neck region. The viability of a free flap completely depends on the vascular supply by its vascular pedicle until neovascularization occurs from surrounding tissues. The aim of this study is to find out how long a vascular pedicle lasts following free tissue transfer in the head and neck region. MATERIALS AND METHODS: Patients were recruited from the Maxillofacial Unit at the Royal Brisbane & Women's Hospital...
February 2017: Oral Oncology
https://www.readbyqxmd.com/read/28109423/moving-beyond-the-debate-over-restricting-sugary-drinks-in-the-supplemental-nutrition-assistance-program
#13
EDITORIAL
Marlene B Schwartz
To address the dual problem of food insecurity and poor nutrition, the U.S. Department of Agriculture has recently revised the nutrition standards for nearly all of its federal food programs to align with the Dietary Guidelines for Americans. One notable exception is the Supplemental Nutrition Assistance Program (SNAP). Policy proposals to restrict SNAP benefits based on nutrition quality (e.g., excluding sugary drinks) have generated controversy and have polarized previous research and advocacy allies. This essay presents many of the issues that have emerged, which include challenges about the feasibility, justification, and effectiveness of restricting benefits; the risk of a slippery slope; concerns about participant dignity; and finally, distrust about the motives behind promoting and opposing a policy change...
February 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28109385/scimitar-syndrome-complex-surgical-revision-3-decades-after-repair
#14
Maher N Abadeer, Eckehard A E Stuth, Peter C Kouretas, Salil Ginde, Roni Jacobsen, Ronald K Woods
We present a case of a 39-year-old woman with scimitar syndrome who had a 2-patch repair 3 decades previously and presented with a right-to-left shunt of the inferior vena cava (IVC) to the left atrium resulting from baffle dehiscence. We discuss details of our reoperative repair.
February 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28108993/experience-from-a-multi-country-initiative-to-improve-the-monitoring-of-selected-reproductive-health-indicators-in-africa
#15
Maria Barreix, Özge Tunçalp, Namuunda Mutombo, Ayotunde A Adegboyega, Lale Say
Universal access to sexual and reproductive health remains part of the unfinished business of global development in the Africa. To achieve it, health interventions should be monitored using programmatic indicators. WHO's Strengthening Measurement of Reproductive Health Indicators in Africa initiative, implemented in Ghana, Nigeria, Kenya, Uganda, and Zimbabwe, aimed to improve national information systems for routine monitoring of reproductive health indicators. Participating countries developed action plans employing a two-pronged strategy: (1) revising, standardizing, and harmonizing existing information-system reproductive health indicators; and (2) building data-collection capacity through training and supervision at select pilot sites...
January 21, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28108969/long-term-outcomes-of-roux-en-y-gastric-bypass-conversion-of-failed-laparoscopic-gastric-band
#16
Hanaa N Dakour Aridi, Mohammad-Rachad Wehbe, Ghassan Shamseddine, Ramzi S Alami, Bassem Y Safadi
BACKGROUND: Laparoscopic adjustable gastric band (LAGB) carries a high rate of failure and reoperation. Laparoscopic conversion of failed LAGB to Roux-en-Y gastric bypass (RYGB) has been shown to be safe and feasible, but long-term follow-up data is still limited. OBJECTIVES: The aim of this study is to evaluate the safety and effectiveness of RYGB after failed LAGB in our patient population. SETTING: The setting was the University Hospital, Beirut, Lebanon...
January 20, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28108823/which-clinical-and-patient-factors-influence-the-national-economic-burden-of-hospital-readmissions-after-total-joint-arthroplasty
#17
Steven M Kurtz, Edmund C Lau, Kevin L Ong, Edward M Adler, Frank R Kolisek, Michael T Manley
BACKGROUND: The Affordable Care Act of 2010 advanced the economic model of bundled payments for total joint arthroplasty (TJA), in which hospitals will be financially responsible for readmissions, typically at 90 days after surgery. However, little is known about the financial burden of readmissions and what patient, clinical, and hospital factors drive readmission costs. QUESTIONS/PURPOSES: (1) What is the incidence, payer mix, and demographics of THA and TKA readmissions in the United States? (2) What patient, clinical, and hospital factors are associated with the cost of 30- and 90-day readmissions after primary THA and TKA? (3) Are there any differences in the economic burden of THA and TKA readmissions between payers? (4) What types of THA and TKA readmissions are most costly to the US hospital system? METHODS: The recently developed Nationwide Readmissions Database from the Healthcare Cost and Utilization Project (2006 hospitals from 21 states) was used to identify 719,394 primary TJAs and 62,493 90-day readmissions in the first 9 months of 2013 based on International Classification of Diseases, 9th Revision, Clinical Modification codes...
January 20, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28108798/augmented-perineal-urethrostomy-using-a-dorsal-buccal-mucosal-graft-bi-institutional-study
#18
Jessica DeLong, Kurt McCammon, Leandro Capiel, Augustín Rovegno, Jeremy B Tonkin, Gerald Jordan, Ramón Virasoro
PURPOSE: To present our technique and outcomes for perineal urethrostomy augmented with a dorsal onlay buccal mucosa graft (BMG). Results from initial series and collaboration from an international center are included. METHODS: A retrospective chart review of all adult patients who underwent urethral reconstruction with perineal urethrostomy utilizing a buccal mucosal graft between January 1, 2002 and January 1, 2013 was performed. All surgeries were performed by three surgeons using the same technique (GHJ, KAM, and RV)...
January 20, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28108774/-hip-dislocation-after-revision-arthroplasty-risk-assessment-and-treatment-strategies
#19
P M Prodinger, J Schauwecker, H Mühlhofer, N Harrasser, F Pohlig, C Suren, R von Eisenhart-Rothe
With a dislocation rate of up to 35% after revision total hip arthroplasty (THA), instability is one of the major causes why this procedure fails. Independent factors for patients at risk are age, sex, and the type of revision needed. The surgical approach, implant choice, and positioning of the components are factors that the surgeon can influence to keep the dislocation rate low. Large femoral heads or double mobility (DM) cups can increase the stability of the joint. After detailed failure analysis, targeted use of different technical innovations enhances stability in revision THA and prevents further revisions...
January 20, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28108481/clinically-insignificant-trunnionosis-in-large-diameter-metal-on-polyethylene-total-hip-arthroplasty
#20
H S Hothi, D Kendoff, C Lausmann, J Henckel, T Gehrke, J Skinner, A Hart
OBJECTIVES: Mechanical wear and corrosion at the head-stem junction of total hip arthroplasties (THAs) (trunnionosis) have been implicated in their early revision, most commonly in metal-on-metal (MOM) hips. We can isolate the role of the head-stem junction as the predominant source of metal release by investigating non-MOM hips; this can help to identify clinically significant volumes of material loss and corrosion from these surfaces. METHODS: In this study we examined a series of 94 retrieved metal-on-polyethylene (MOP) hips for evidence of corrosion and material loss at the taper junction using a well published visual grading method and an established roundness-measuring machine protocol...
January 2017: Bone & Joint Research
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