Topic
Intra-rater reliability
About: Intra-rater reliability is a research topic. Over the lifetime, 2073 publications have been published within this topic receiving 140968 citations.
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TL;DR: The Soong classification is a reliable tool, both interrater and intrarater, for assessing distal radius volar locking plate placement and remained reliable despite a randomly selected, consecutive series of images and physician observers.
Abstract: Background: The purpose of this study was to analyze the intrarater and interrater reliability of the Soong classification for volar locking plate placement on a randomly selected, consecutive series of radiographs. Our hypothesis was that the classification would be reliable. Methods: Six physicians of differing levels of training (orthopedic surgery intern to fellowship-trained upper extremity staff) were asked to review 40 radiographs in a random order on 2 separate occasions, 4 weeks apart. All observers graded each image (0, 1, or 2) based on the corresponding Soong grade. A weighted κ was used to determine the intrarater agreement. The interrater agreement was determined using an intraclass coefficient: Results: The intrarater reliability using a weighted κ ranged from 0.229 (95% confidence interval [CI]: 0.048-0.411) to 0.946 (95% CI: 0.840-1.051). The interrater intraclass coefficient for Randomization 1 was 0.944 (95% 0.912-0.967) and Randomization 2 was 0.877 (95% CI: 0.797-0.930). Conclusion: The Soong classification is a reliable tool, both interrater and intrarater, for assessing distal radius volar locking plate placement. The classification system remained reliable despite a randomly selected, consecutive series of images and physician observers of varying levels of training.
5 citations
TL;DR: Tape measurement method has acceptable reliability and validity in healthy people, but it does not have acceptable validity in measuring obese people and patients with musculoskeletal disorders.
Abstract: Background: Leg length discrepancy measurement is an essential part of musculoskeletal clinical assessment, and tape measurement is a common clinical method. This study aimed to systematically review the results of the findings of studies on validity and reliability of the tape measurement method and the quality of reporting the literature on this topic. Methods: A search was performed in PubMed, EBSCO, Science Direct, Web of Knowledge, Scopus, Embase, and Google Scholar using selected keywords from inception to December 2017.This systematic review was based on the PRISMA guideline. After a systematic selection process, the quality of the included studies was assessed independently by 2 reviewers using the Brink and Louw Scale for quality assessment. Results: A total of 11 studies were finally considered for this systematic review. Two studies were about the validity of (a measurement tool) studies and 4 were reliability analysis only. Validity and reliability analyses were simultaneously applied to 5 studies. Also, 9 out of 11 studies were deemed to be of high quality based on Brink and Louw Scale. Studies showed high (ICC=0.7) to very high (ICC=0.9) levels of interrater and intrarater reliability. The validity of the methods ranged from low to very high depending on subjects. Conclusion: Tape measurement method has acceptable reliability and validity in healthy people, but it does not have acceptable validity in measuring obese people and patients with musculoskeletal disorders. Thus, using a suitable method for LLD leg length discrepancy measurement seems to be necessary for obese and individuals with leg length discrepancy.
5 citations
TL;DR: The use of real time ultrasound method for assessing upper and lower limb tendon thickness has moderate-to-good level reliability, which may have important implications for management of tendon disorders.
Abstract: Background Pathological tendons are known to increase their AP diameter. Ultrasound is an important complementary technique to MRI for assessment of musculoskeletal disorders. Although systematic reviews have confirmed its reliability for the measurement of muscle thickness, no such reviews exist to examine the reliability of US measures of tendon dimensions. Objective To systematically review the literature on the reliability of Real-time ultrasound to assess tendon dimensions including thickness and cross sectional area in human limbs. Design A comprehensive review of electronic databases was performed by two reviewers using agreed range of keywords. Randomised clinical trials which investigated inter or intra rater reliability of real time ultrasound was included in this review. The Quality Appraisal of Reliability Studies (QAREL) checklist was used to assess risk of bias. Setting Included studies performed ultrasound analysis in a range of clinical settings. Participants 698 Symptomatic and asymptomatic participants, mean age range: 17.5–73 years. Interventions Tendon thickness of a range of upper and lower limb tendons was assessed using real time ultrasound in both transverse and longitudinal planes by physiotherapists, sonographers and other unspecified investigators. Main outcome measurements Inter and Intra rater reliability of tendon thickness measures using estimates of both reliability and precision using intraclass correlation coefficients (ICC9s) and coefficients of variation (CVs), coefficient of variation (CV%) limits of agreement (LOA), pearsons correlation coefficient (r2) and 95% confidence intervals (95% CI). Results Assessment of the risks of bias indicated 15/16 chosen studies was of high quality. ICC values for inter and intra rater reliability ranged from (0.55–0.99), LOA ranged from (0.35–3.50 mm), r2 ranged from (0.43–0.92), 95% CI ranged from (0.43–0.98), CV% ranged from (0–14.44%). Conclusion The use of real time ultrasound method for assessing upper and lower limb tendon thickness has moderate-to-good level reliability. The findings of which may have important implications for management of tendon disorders.
5 citations
TL;DR: Practical surgeons measuring tibial rotation were internally consistent, but failed to demonstrate satisfactory precision and interobserver agreement, which support the adoption of standardized criteria for the measurement of tibIAL component rotation on CT scans.
Abstract: Background Component rotation likely plays a greater role on the survivorship and outcomes of total knee arthroplasties than is currently known. Our goal was to evaluate the precision, interobserver reliability, and intrarater reliability of tibial component rotation as measured by computed tomography (CT) scan, regardless of measurement technique. Methods Three fellowship-trained, academic arthroplasty surgeons independently measured tibial component rotation on CT scans of 62 total knee arthroplasties using their methods of choice. Measurements were repeated at least 2 weeks after the initial measurement. The precision of the measurements was assessed using a formal 8-step protocol as the gold standard. Intraclass correlation coefficients (ICCs) were calculated to evaluate precision, interobserver agreement, and intrarater reliability Results The interobserver agreement between the 3 surgeons for tibial component rotation was also moderate (ICC = 0.52). The intrarater reliability of tibial rotation was excellent (ICC = 0.81). Comparison of surgeons' measurement to a validated gold standard revealed only moderate precision for tibial component rotation (ICC = 0.64). Conclusion Practicing surgeons measuring tibial rotation were internally consistent, but failed to demonstrate satisfactory precision and interobserver agreement. We support the adoption of standardized criteria for the measurement of tibial component rotation on CT scans.
5 citations
TL;DR: Current methods used to quantify PST have good reliability but are primarily limited to measures of horizontal adduction of the glenohumeral joint with scapular stabilization,Limitations in using a single measurement technique exist particularly as there may be multiple contributing factors to PST.
5 citations