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The interrater reliability of a pain mechanisms-based classification for patients with nonspecific neck pain.

ABSTRACT: OBJECTIVE:To examine the interrater reliability and agreement of a pain mechanisms-based classification for patients with nonspecific neck pain (NSNP). METHODS:Design - Observational, cross-sectional reliability study with a simultaneous examiner design. SETTING:University hospital-based outpatient physical therapy clinic. PARTICIPANTS:A random sample of 48 patients, aged between 18 and 75 years old, with a primary complaint of neck pain was included. INTERVENTIONS:Subjects underwent a standardized subjective and clinical examination, performed by 1 experienced physical therapist. Two assessors independently classified the participants' NSNP on 3 main outcome measures. MAIN OUTCOME MEASURES:The Cohen kappa, percent agreement, and 95% confidence intervals (CIs) were calculated to determine the interrater reliability for (1) the predominant pain mechanism; (2) the predominant pain pattern; and (3) the predominant dysfunction pattern (DP). RESULTS:There was almost perfect agreement between the 2 physical therapists' judgements on the predominant pain mechanism, kappa=.84 (95% CI, .65-1.00), p<.001. There was substantial agreement between the raters' judgements on the predominant pain pattern and predominant DP with respectively kappa=.61 (95% CI, .42-.80); and kappa=.62 (95% CI, .44-.79), p<.001. CONCLUSION(S):The proposed classification exhibits substantial to almost perfect interrater reliability. Further validity testing in larger neck pain populations is required before the information is used in clinical settings. CLINICAL TRIAL REGISTRATION NUMBER:NCT03147508 (https://clinicaltrials.gov/ct2/show/NCT03147508).

SUBMITTER: Dewitte V

PROVIDER: S-EPMC6823704 | biostudies-literature | 2019 Sep - Oct

REPOSITORIES: biostudies-literature

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The interrater reliability of a pain mechanisms-based classification for patients with nonspecific neck pain.

Dewitte Vincent V De Pauw Robby R Danneels Lieven L Bouche Katie K Roets Arne A Cagnie Barbara B

Brazilian journal of physical therapy 20181029 5

<h4>Objective</h4>To examine the interrater reliability and agreement of a pain mechanisms-based classification for patients with nonspecific neck pain (NSNP).<h4>Methods</h4>Design - Observational, cross-sectional reliability study with a simultaneous examiner design.<h4>Setting</h4>University hospital-based outpatient physical therapy clinic.<h4>Participants</h4>A random sample of 48 patients, aged between 18 and 75 years old, with a primary complaint of neck pain was included.<h4>Intervention ...[more]

PMID: 30389348

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Project description:ImportanceThe incidence rate of neck pain is increasing worldwide, and the disease is associated with a high social burden. Manual therapy has been widely applied in the treatment of neck pain, but a high-quality, pragmatic randomized clinical trial for this treatment has not been conducted to date.ObjectiveThis study aimed to compare the effectiveness of Chuna manual therapy with that of usual care for patients with chronic neck pain.Design, setting, and participantsA multicenter, assessor-blinded, pragmatic, randomized clinical trial was conducted between October 18, 2017, and June 28, 2019. This intention-to-treat analysis included 108 patients with chronic neck pain persisting for at least 3 months; patients were recruited from 5 hospitals in Korea.InterventionsTen sessions (2 sessions per week for 5 weeks) of Chuna manual therapy or usual care (electrotherapy and oral medication) were conducted.Main outcomes and measuresThe main outcome was the difference in visual analog scale (VAS) score for chronic neck pain between baseline and 5 weeks after randomization.ResultsThis randomized clinical trial recruited 108 patients (mean [SD] age, 38.4 [9.3] years; 73 women [67.6%]). Fifty-four patients were allocated to the Chuna therapy group, and 54 received usual care. At 5 weeks after randomization, manual therapy showed statistically superior results compared with usual care in terms of pain (difference in chronic neck pain VAS, 16.8 mm; 95% CI, 10.1-23.5 mm), function (difference in Neck Disability Index, 8.6%; 95% CI, 4.2%-13.1%), and quality of life (difference in the European Quality of Life-5 Dimension 5 Levels (EQ-5D-5L) scores, -0.07 points; 95% CI, -0.11 to -0.02 points). Regarding the 1-year cumulative values measured using area under the curve analyses, superior outcomes were attained in the manual therapy group in terms of the numerical rating scale for chronic neck pain (1.3 points; 95% CI, 0.5-2.0 points), Neck Disability Index (6.7%; 95% CI, 2.5%-10.9%), Neck Pain Questionnaire (7.4%; 95% CI, 2.3%-12.6%), and EQ-5D-5L scores (-0.03 points; -0.07 to 0.00 points).Conclusions and relevanceIn this randomized clinical trial, for patients with chronic neck pain, Chuna manual therapy was more effective than usual care in terms of pain and functional recovery at 5 weeks and 1 year after randomization. These results support the need to consider recommending manual therapies as primary care treatments for chronic neck pain.Trial registrationClinicalTrials.gov identifier: NCT03294785.

Project description:BackgroundIn elderly patients, displaced femoral neck fractures are mostly treated by arthroplasty; however for younger patients (<50 years), open reduction and internal fixation is considered the gold standard approach. Despite there being no consensus on the specific procedure, everyday clinical practice in a level I trauma center has shown that postoperative maltorsion after internal fixation of femoral neck fractures can have a significantly worse impact on mobilization and outcome. Different methods for measurement of malrotations are reported in literature. However, any reported method for the assessment of a shaft malrotation in the femur does not work here. In femoral neck fractures, the pointer function of the femoral neck, which is absolutely essential for these techniques, is lost and cannot be set in relation to the condylar plane. These circumstances are not addressed in literature thus far. Therefore, we propose here a novel method to fill this diagnostic gap.Methods and findingsThree investigators (1 orthopaedic surgeons and 2 radiologists) measured the torsion of 20 legs on 10 patients using the Jarret method and a new geometric technique. To determine the intraobserver reliability the torsional angles were calculated again after 3 months. We applied a new geometric technique, without the need to include the femoral condyles in the measurement, to directly measure the angulation. For torsional difference, the interrater reliability -ICC (interclass correlation) between all investigators was 0.887 (good) (significance level: 95%CI, 0.668-0.969; p<0.001), by using the method of Jarret et al. and 0.933 (good) for the novel technique (significance level: 95%CI, 0.802-0.982; p<0.001). If the examinations are classified according to the patient side, our data show that for established methods, an ICC between the examiners on the right lower extremity is 0.978 (good) (95%CI, 0.936-0.994; p<0.001) and that on the left extremity is 0.955 (good) (95%CI, 0.867-0.988; p<0.001). Comparing with the new method, the right side assumes an ICC of 0.971 (good) (95%CI, 0.914-0.992; p<0.001), while the left side assumes an ICC of 0.910 (good) (95%CI, 0,736-0.976; p<0.001). When it comes to the intraobserver reliability, the measured cohort shows a significant better ICC for the novel method compared to Jarrett et al, with 0.907 respectively 0.786 for comparison in torsional differences.ConclusionThe established methods may fail in assessing this special aspect of malrotation after femoral neck fractures. Here, the method presented results in a significant difference between the injured and uninjured side and shows significant differences in results compared to conventional measurement methods. The inter- and intraobserver reliability determined in this study is excellent and even higher in the assessment of torsional differences than the established method. We believe that the measurement method presented in this study is a useful tool to objectify the postoperative deformities in this area and making therapy recommendations in the future.

Project description:BACKGROUND:Medical coding is essential for standardized communication and integration of clinical data. The Unified Medical Language System by the National Library of Medicine is the largest clinical terminology system for medical coders and Natural Language Processing tools. However, the abundance of ambiguous codes leads to low rates of uniform coding among different coders. OBJECTIVE:The objective of our study was to measure uniform coding among different medical experts in terms of interrater reliability and analyze the effect on interrater reliability using an expert- and Web-based code suggestion system. METHODS:We conducted a quasi-experimental study in which 6 medical experts coded 602 medical items from structured quality assurance forms or free-text eligibility criteria of 20 different clinical trials. The medical item content was selected on the basis of mortality-leading diseases according to World Health Organization data. The intervention comprised using a semiautomatic code suggestion tool that is linked to a European information infrastructure providing a large medical text corpus of >300,000 medical form items with expert-assigned semantic codes. Krippendorff alpha (Kalpha) with bootstrap analysis was used for the interrater reliability analysis, and coding times were measured before and after the intervention. RESULTS:The intervention improved interrater reliability in structured quality assurance form items (from Kalpha=0.50, 95% CI 0.43-0.57 to Kalpha=0.62 95% CI 0.55-0.69) and free-text eligibility criteria (from Kalpha=0.19, 95% CI 0.14-0.24 to Kalpha=0.43, 95% CI 0.37-0.50) while preserving or slightly reducing the mean coding time per item for all 6 coders. Regardless of the intervention, precoordination and structured items were associated with significantly high interrater reliability, but the proportion of items that were precoordinated significantly increased after intervention (eligibility criteria: OR 4.92, 95% CI 2.78-8.72; quality assurance: OR 1.96, 95% CI 1.19-3.25). CONCLUSIONS:The Web-based code suggestion mechanism improved interrater reliability toward moderate or even substantial intercoder agreement. Precoordination and the use of structured versus free-text data elements are key drivers of higher interrater reliability.

Project description:BackgroundNonspecific chronic neck pain (cNP) is common in adult violinists and violists and is often treated with osteopathic medicine (OM), although the effectiveness of this treatment has not been determined to date. This study aimed to evaluate the effectiveness and safety of OM in adult violinists and violists with cNP.MethodsIn a two-armed randomized controlled single-center open trial, adult violinists and violists, including music students, with cNP (⩾12 weeks) were randomized to either five individualized OM sessions (OM group) or to no intervention (control group, CG) in the outpatient clinic for integrative medicine, Charité - Universitätsmedizin Berlin, Germany. All patients received a musicians' medicine consultation and paracetamol on demand. The primary outcome parameter was the neck pain intensity on a visual analog scale (VAS, 0-100 mm, 0 = no pain, 100 = worst imaginable pain) after 12 weeks. Secondary outcomes included neck pain disability (Neck Disability Index, NDI, 0-100%) after 12 weeks. The last follow-up visit was after 52 weeks. Statistical analysis included analysis of covariance adjusted for respective baseline value.ResultsAltogether, 62 outpatients were included [OM group (n = 28), CG (n = 34); 81% female; mean age, 41.6 ± 11.1 years; mean baseline neck pain, 55.9 ± 11.6 mm]. After 12 weeks, OM was associated with an improvement in the OM group versus the CG in neck pain on the VAS [14.6 mm (95% confidence interval 8.0; 21.2) versus 40.8 mm (34.7; 46.9), p < 0.001, Cohen's d = 1.4], and neck pain disability as determined by the NDI [8.8% (6.7; 10.8) versus 17.2% (15.3; 19.1), p < 0.001]. Some improvements were maintained until 52 weeks of follow-up. No serious adverse events were observed.ConclusionsThe results of this study suggest that OM might be effective in reducing pain intensity in adult violinists and violists with nonspecific cNP. Further studies should investigate the efficacy of OM in comparison with a sham procedure and with other effective therapy methods in high-quality multicenter trials.Trial registrationWHO Trial Registration https://apps.who.int/trialsearch/NoAccess.aspx?aspxerrorpath=/trialsearch/Trial2.aspx by German Clinical Trials Register DRKS00009258, Universal Trial Number (UTN): U1111-1173-5943.

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The interrater reliability of a pain mechanisms-based classification for patients with nonspecific neck pain.

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The interrater reliability of a pain mechanisms-based classification for patients with nonspecific neck pain.

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