Publications by authors named "Steven A Mazzuca"

Objectives: Regular exercise is associated with important benefits in patients with fibromyalgia (FM). Unfortunately, long-term maintenance of exercise after a structured program is rare. The present study tested the efficacy of Motivational Interviewing (MI) to promote exercise and improve symptoms in patients with FM.

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Background: Improving a patient's ability to self-monitor and manage changes in chronic obstructive pulmonary disease (COPD) symptoms may improve outcomes.

Objective: To determine the efficacy of a comprehensive care management program (CCMP) in reducing the risk for COPD hospitalization.

Design: A randomized, controlled trial comparing CCMP with guideline-based usual care.

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Objective: To explore whether the risk of incident tibiofemoral (TF) osteoarthritis (OA) in the radiographically normal contralateral knee of overweight/obese women with unilateral knee OA is mediated by malalignment and/or preceded by increased turnover of subchondral bone.

Methods: We used data of post hoc analyses from a randomized controlled trial. Cross-sectional analyses evaluated the baseline association between frontal plane alignment and bone turnover in the medial TF compartment in 78 radiographically normal contralateral knees.

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Objective: To define pain and physical function cutpoints that would, coupled with structural severity, define a surrogate measure of "need for joint replacement surgery," for use as an outcome measure for potential structure-modifying interventions for osteoarthritis (OA).

Methods: New scores were developed for pain and physical function in knee and hip OA. A cross-sectional international study in 1909 patients was conducted to define data-driven cutpoints corresponding to the orthopedic surgeons' indication for joint replacement.

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Unlabelled: The role of central sensitization (CS) in clinical pain reported by FMS patients is unclear. In this report, we sought to establish evidence of a prospective association between clinical pain and an objective measure of spinal nociception (nociceptive flexion reflex [NFR] threshold) and explore whether depression moderates this relationship. We collected measures that included the NFR threshold (in the range of 0-60 milliamperes (mA); a lower threshold represents greater nociceptive responsivity) and clinical variables (ie, Fibromyalgia Impact Questionnaire (FIQ)-total, FIQ-pain, depression and current pain intensity) at 3 time points (baseline, weeks 6 and 12).

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Objective: To use the collagenase cleavage site neoepitope, TIINE, a marker of type II collagen breakdown in cartilage, to analyze the mechanism underlying the slowing of joint space narrowing (JSN) in patients with knee osteoarthritis treated with doxycycline.

Methods: The creatinine-adjusted urinary TIINE concentration was determined at baseline and every 6 months thereafter in a subset of patients who completed a 30-month randomized, placebo-controlled study of the effect of doxycycline on radiographic progression of JSN. The subset was selected a priori to permit comparison of 60 radiographic progressors with 60 radiographic nonprogressors.

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Objective: : The objective of this study was to evaluate a nurse-directed self-management intervention for managed care patients with knee osteoarthritis (OA), emphasizing nonpharmacologic (NonPharm) management of pain and functional impairments and minimization of exposure to the risks and costs of nonsteroidal antiinflammatory drugs (NSAIDs).

Methods: : Subjects were 186 patients from a large health maintenance organization (HMO) who satisfied American College of Rheumatology clinical criteria for knee OA. Two of 4 HMO sites (and their patient cohorts) were randomly assigned to the education group; the other 2 served as a delayed-intervention control group.

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Objective: Quadriceps weakness is a risk factor for incident knee osteoarthritis (OA). We describe a randomized controlled trial of effects of lower-extremity strength training on incidence and progression of knee OA.

Methods: A total of 221 older adults (mean age 69 years) were stratified by sex, presence of radiographic knee OA, and severity of knee pain, and were randomized to strength training (ST) or range-of-motion (ROM) exercises.

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Objective: To evaluate the risk factors for early radiographic changes of knee osteoarthritis.

Subjects: (n = 114) with unilateral or bilateral grade 0-1 knee osteoarthritis underwent x ray examination of the knees (semiflexed anteroposterior view) and assessment with the Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index at baseline and 30 months later. Severity of joint space narrowing (JSN) and osteophytosis were graded in randomly ordered serial radiographs by two readers, blinded to the sequence of the films, using standard pictorial atlases.

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Objective: We examined whether plasma concentrations of biomarkers of the collagenase cleavage of type II collagen (C2C), types I and II collagens (C1,2C), type II collagen synthesis (CPII), proteoglycan aggrecan turnover (CS846), and the ratio C2C:CPII would distinguish subjects with progressive radiographic osteoarthritis (OA) from those with stable disease.

Methods: Subjects were 120 obese middle-aged women with unilateral knee OA who participated in a 30-month clinical trial of structure modification with doxycycline, in which a standardized semiflexed anteroposterior view of the knee was obtained at baseline, 16 months, and 30 months. Subjects were selected from a larger sample to permit a priori comparisons between 60 OA progressors and 60 nonprogressors, as defined by joint space narrowing (JSN) in the medial tibiofemoral compartment.

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Objective: To determine the extent to which treatment of patients with symptomatic knee osteoarthritis (OA) with non-steroidal anti-inflammatory drugs (NSAIDs) and acetaminophen (ACET) reduces total effusion volume and synovial tissue volume, as quantified by magnetic resonance imaging (MRI).

Methods: Sequential pilot studies used subjects whose knee OA was treated with NSAIDs (n=10) or with ACET or=15 of 25 on the Western Ontario and McMaster Universities' pain scale underwent l.

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Little effort has gone into the development of more effective analgesics for osteoarthritic pain. Efforts to improve symptomatic therapy for osteoarthritis have been deflected or diluted by a decision to pursue the development of disease-modifying OA drugs (DMOADs). These agents' main mechanism of action is directed not at the relief of joint pain but at slowing the progression of structural damage.

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Objective: To determine whether baseline or serial plasma concentrations of stromelysin (matrix metalloproteinase 3 [MMP-3]) protein might distinguish subjects with progressive radiographic knee osteoarthritis (OA) from those with stable disease.

Methods: Subjects were 120 women with unilateral knee OA who participated in a 30-month randomized, placebo-controlled trial of structure modification with doxycycline. Anteroposterior views of both knees in a semiflexed position were obtained at baseline, 16 months, and 30 months.

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Objective: To compare the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of a baseline late-phase bone scan and assessments of the radiographic and symptomatic severity of knee osteoarthritis (OA) at baseline as predictors of loss of articular cartilage thickness, as reflected in joint space narrowing (JSN) in the medial tibiofemoral compartment.

Methods: Subjects (174 obese women, 45-64 yrs of age, with unilateral knee OA) were a subset of a larger cohort who participated in a placebo controlled trial of a disease modifying OA drug. Uptake of technetium medronate (99mTc-MDP) in anteroposterior (AP) and lateral views of a late-phase bone scan was measured at baseline in a region of interest drawn around the medial tibia, and was adjusted for (i.

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Objective: To confirm preclinical data suggesting that doxycycline can slow the progression of osteoarthritis (OA). The primary outcome measure was joint space narrowing (JSN) in the medial tibiofemoral compartment.

Methods: In this placebo-controlled trial, obese women (n = 431) ages 45-64 years with unilateral radiographic knee OA were randomly assigned to receive 30 months of treatment with 100 mg doxycycline or placebo twice a day.

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Objective: To describe the methods by which remarkable levels of subject retention and adherence were achieved in a 30-month multicenter randomized placebo-controlled trial (RCT) of a disease-modifying osteoarthritis drug (DMOAD).

Methods: Subjects were obese 45-64-year-old women with unilateral knee osteoarthritis. Before randomization, each volunteer completed a 4-week "faintness-of-heart" (FOH) test, during which she was required to demonstrate reliable appointment keeping and > or =80% adherence to the dosing regimen.

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Objective: To identify changes in joint pain, stiffness, and functional ability in patients with knee osteoarthritis (OA) after use of a knee sleeve that prevents loss of body heat by the joint.

Methods: Subjects with symptomatic knee OA (n = 52) were randomized to 2 treatment groups: verum sleeve (specially fabricated to retain body heat) or placebo sleeve (standard cotton/elastane sleeve). Subjects wore the sleeve over the more painful OA knee for at least 12 hours daily for 4 weeks.

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Objective: Computerized measurement of changes in joint space width (JSW) on serial radiographs of the knee in the semiflexed, anteroposterior (SF-AP) view has been used recently as a primary outcome measure in clinical trials of disease-modifying osteoarthritis drugs (DMOADs). In the use of fluoroscopy to achieve reproducible alignment of the medial tibial plateau and x-ray beam, the SF-AP radiographic protocol affords greater sensitivity in the detection of joint space narrowing (JSN) than that achieved by conventional radiographic positioning techniques. However, the utility of the SF-AP view is compromised by the variation in x-ray penetration in each examination, which may confound the correction of the automated measurement of JSW for the radiographic magnification inherent in an AP view of the knee.

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Objective: To determine the predictive value of bone scintigraphy with respect to joint space narrowing (JSN) in patients with knee osteoarthritis (OA), based on quantitative estimates of uptake of a bone-seeking radiopharmaceutical and fluoroscopically standardized knee radiography.

Methods: Our study group included 86 obese women, 45-64 years of age, with unilateral knee OA. Uptake of technetium medronate (99mTc-MDP) in late-phase bone scans was measured at baseline in 5 regions of interest (ROI: lateral femur, lateral tibia, medial femur, medial tibia, and patellofemoral joint) and was adjusted for uptake (i.

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Recent research on the radiographic imaging of knee OA has helped clarify the features of imaging protocols that contribute to accurate representation of disease severity--specifically, the thickness of articular cartilage--and to sensitive detection of disease progression. The absence of standards for reproducible positioning of the knee in the conventional standing AP view obscures the true rate and variability of JSN in knee OA. Moreover, the standing AP view is susceptible to systematic bias insofar as longitudinal changes in knee pain might lead to over- or underestimation of radiographic JSW depending on the direction of change in pain.

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