BACKGROUND CONTEXT: The North American Spine Society's (NASS) Evidence Based Clinical Guideline for the Diagnosis and Treatment of Low Back Pain features evidence-based recommendations for diagnosing and treating adult patients with nonspecific low back pain. The guideline is intended to reflect contemporary treatment concepts for nonspecific low back pain as reflected in the highest quality clinical literature available on this subject as of February 2016. PURPOSE: The purpose of the guideline is to provide an evidence-based educational tool to assist spine specialists when making clinical decisions for adult patients with nonspecific low back pain. This article provides a brief summary of the evidence-based guideline recommendations for diagnosing and treating patients with this condition. STUDY DESIGN: This is a guideline summary review. METHODS: This guideline is the product of the Low Back Pain Work Group of NASS' Evidence-Based Clinical Guideline Development Committee. The methods used to develop this guideline are detailed in the complete guideline and technical report available on the NASS website. In brief, a multidisciplinary work group of spine care specialists convened to identify clinical questions to address in the guideline. The literature search strategy was developed in consultation with medical librarians. Upon completion of the systematic literature search, evidence relevant to the clinical questions posed in the guideline was reviewed. Work group members utilized NASS evidentiary table templates to summarize study conclusions, identify study strengths and weaknesses, and assign levels of evidence. Work group members participated in webcasts and in-person rate expert opinion when necessary. The draft guideline was submitted to an internal and external peer review process and ultimately approved by the NASS Board of Directors. RESULTS: Eighty-two clinical questions were addressed, and the answers are summarized in this article. The respective recommendations were graded according to the levels of evidence of the supporting literature. CONCLUSIONS: The evidence-based clinical guideline has been created using techniques of evidence-based medicine and best available evidence to aid practitioners in the diagnosis and treatment of adult patients with nonspecific low back pain. The entire guideline document, including the evidentiary tables, literature search parameters, literature attrition flowchart, suggestions for future research, and all of the references,
The evidence relating obesity measured with body mass index (BMI) in the elderly to late onset Alzheimer’ disease (LOAD) is conflicting. Central obesity in middle age is related to a higher risk of LOAD, but data in the elderly are lacking. We explored whether measures of central obesity, waist circumference (WC), and waist to hip ratio (WHR) were better predictors of LOAD compared to BMI in the elderly. Participants were 1459 persons aged 65 years and older without dementia at baseline, with follow-up, and with anthropometric data from a longitudinal study of aging in New York City. Proportional Hazards regression was used for multivariable analyses relating BMI, WC, and WHR to LOAD. There were 145 cases of AD in 5,734 person-years of follow-up. Only WHR was related to higher LOAD risk (HR of the 4th quartile compared to the first =2.5; 95% CI = 1.3, 4.7) after adjustment for age, sex, education, ethnic group, APOE-ε4, type 2 diabetes, hypertension, non-HDL cholesterol, HDL cholesterol and stroke. Measures of central obesity, particularly WHR, are better predictors of cardiovascular outcomes compared to BMI. Our results support the notion that central obesity is related to a higher risk of LOAD.
Background/Aims: To confirm in a cohort recruited in 1999–2001 our finding in a cohort recruited in 1992–1994 relating type 2 diabetes (T2D) to late-onset Alzheimer’s disease (LOAD). Methods: Participants were 1,488 persons aged 65 years and older without dementia at baseline from New York City. T2D was ascertained by self-report. Dementia and LOAD were ascertained by standard research procedures. Proportional hazard regression was used for analyses relating T2D and LOAD. Results: The prevalence of T2D was 17%. There were 161 cases of dementia and 149 cases of LOAD. T2D was related to dementia (hazard ratio = 1.7; 95% confidence interval = 1.4–2.9) and LOAD (1.6; 1.0–2.6) after adjustment for age, sex, education, ethnic group and apolipoprotein E Ε4. This association was weaker when only AD – excluding cases of mixed dementia – was considered (hazard ratio = 1.3; 95% confidence interval = 0.8–2.2). Conclusion: T2D is associated with LOAD. Cerebrovascular disease may be an important mediator.
There are a variety of oral and topical pharmaceutical agents for the treatment of osteoarthritis. To date there is no pharmacologic agent proved to prevent disease progression. This article focuses primarily on the medications used for symptomatic relief and palliation of pain. The article reviews the medications' mechanisms of action and the available efficacy literature, as well as indications, contraindications, and common adverse effects.
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