scholarly journals Three-dimensional Acetabular Bone Defect Classification System Aided with Rapid Prototyping Model and Reliability and Validity Test

2021 ◽  
Author(s):  
Jingwei Zhang ◽  
Yi Hu ◽  
Hua Ying ◽  
Yuanqing Mao ◽  
Zhenan Zhu ◽  
...  
Keyword(s):  
Rapid Prototyping ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Bone Defect ◽  
Intraclass Correlation ◽  
Three Dimensional ◽  
Revision Arthroplasty ◽  
Reliability And Validity ◽  
Defect Classification ◽  
Observer Reliability

Abstract Background: Accurately assessing acetabular defects and designing precise and feasible surgical plans are important before hip revision arthroplasty. With the development of three-dimensional printing, rapid prototyping is a novel technique used to print isometric physical object models. We aimed to propose a three-dimensional acetabular bone defect classification system aided with rapid prototyping and evaluated its reliability and validity.Methods: We reviewed 104 consecutive patients who underwent hip revision arthroplasty in our department between January 2014 and December 2019. Forty five of them had rapid prototyping and were included for reliability and validity test. Three doctors retrospectively evaluated bone defects of these 45 patients with this classification and made surgical plans, and repeated it after 2 weeks. The intra- and inter-observer reliability and the validity to surgical records were assessed using intraclass correlation coefficient or Kappa correlation coefficient.Results: The reliability and validity for classification results were high. The mean initial intraclass correlation coefficient for inter-observer reliability was 0.947, which increased to 0.972 when texted second time. As for inter-observer reliability, it ranged from 0.958 to 0.980. The validity showed high Kappa correlation coefficient of 0.951 to 0.967. When considering detailed surgical plans, the reliability and validity were also high with intraclass correlation coefficient and Kappa correlation coefficient all over 0.9.Conclusions: This three-dimensional acetabulum defect classification was of high reliability and convincing validity. With this classification and objective rapid prototyping models, accurate bone defect assessment and reliable surgical plans were achieved. This classification aided with rapid prototyping could serve as a promising tool for surgeons for preoperative evaluation.

Reliability and Validity of the Thai Version of the Carolinas Comfort Scale

2021 ◽  
Vol 104 (11) ◽  
pp. 1784-1787
Keyword(s):  
Inguinal Hernia ◽  
Hernia Repair ◽  
Inguinal Hernia Repair ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Internal Consistency Reliability ◽  
Retest Reliability ◽  
Test Retest Reliability

Objective: To evaluate the reliability and validity of the Thai version of the Carolinas Comfort Scale (CCS) to measure health-related quality of life (HRQoL) in post-hernia repaired patients. Materials and Methods: Three hundred twenty-eight patients that underwent the inguinal hernia repair procedure in Vajira Hospital were recruited in the present study. The Thai version of CCS (TCCS) was performed entirely by the patient, and the test-retest reliability was conducted at a 2-week interval. Results: The TCCS’s internal consistency reliability was excellent (Cronbach’s alpha 0.89). The inter-rater reliability was found to agree with the intraclass correlation coefficient of 0.90. The test-retest reliability over two weeks was high, with an intraclass correlation coefficient of 0.92. Conclusion: The Thai version of CCS was found to have adequate reliability and validity and could be used to measure HRQoL in Thai patients that undergo inguinal hernia repair. Keywords: Reliability; Validity; Carolinas Comfort Scale; Thai version

scholarly journals 1183 Three-dimensional echocardiographic paramenters for mitral valve quantification: a feasibility and validation study

2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
E Tafciu ◽  
G Granata ◽  
F Ancona ◽  
S Stella ◽  
C Capogrosso ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Three Dimensional ◽  
Left Ventricular ◽  
Volumetric Method ◽  
Systolic Pulmonary Artery Pressure ◽  
Observer Variability ◽  
Vena Contracta ◽  
Valvular Surgery

Abstract Introduction Mitral regurgitation (MR) severity affects prognosis and a correct quantification is key for surgical indication. A multiparametric approach (MPA) is recommended, as singular parameters suffer pitfalls. Recently suggested three-dimensional echocardiographic (3DE) parameters lack clear reference values. No studies have assessed the feasibility of regurgitant volume (RV) and fraction (RF) using the 3D planimetric area of the mitral annulus (MAA) and of the left ventricular outflow tract (LVOTA). Purpose To assess the feasibility and reliability of 3DE, RV and RF obtained by doppler volumetric method using MAA and LVOTA, compare results with 2DE and 3D vena contracta area (VCA) and propose cut-offs for these parameters using MPA as gold standard. Methods Patients referred to our Department for MR assessment were enrolled from September 2018 to February 2019 without more than mild aortic regurgitation or severe stenosis, mitral stenosis and previous valvular surgery. Transthoracic 2DE was used to calculate a multiparametric index of MR severity including: jet area/left atrium (LA) area, CW characteristics, 2D vena contracta, PISA, pulmonary vein flow, LA volume and systolic pulmonary artery pressure. Transoesophageal 3DE was used to assess MAA and LVOTA from a 3D dataset. RV and RF were calculated by Doppler volumetric method using the planimetric areas instead of diameters. VCA 3D was calculated from a 3D color dataset as the cross-sectional area of the regurgitant jet. We compared the results between 2DE and 3DE and between functional and organic MR. ROC curves were analyzed to assess diagnostic performance and identify cut-offs for severity prediction. Intraclass correlation coefficient was calculated to assess variability in measurements. Results Population was composed by 87 patients (56 male, 65 ± 13 years), 72% organic MR. MAA was larger in 2DE (10.4 ± 3.2 vs 9.8 ± 2.9 cm2,) as was the RV (76.6 ± 36.1 vs 66.4 ± 31.9 ml) and RF (55.4 ± 12.4 vs 50.4 vs 10.9%, all p < 0.0001), while LVOTA was smaller (3.9 ± 0.98 vs 4.1 ± 1.0 cm2, p < 0.0001). RV 2D and RF 2D were larger in the organic MR group (p < 0.0001), meanwhile VCA 3D, RV 3D and RF 3D did not show a significant difference (all p > 0.1). VCA 3D had a good correlation with RV 3D (r = 0.593, p < 0.0001) and RF 3D (r = 0.576, p < 0.0001). We proposed a cut-off value of 41.5 mm2 for VCA 3D (94% sens, 96% spec, AUC 0.978), 52 ml for RV 3D (84% sens, 78% spec, AUC 0.901) and 47.6% for RF 3D (91% sens, 90% spec, AUC 0.966) to predict MR severity as assessed by MPA. Intraclass correlation coefficient was 0.980 for MAA and 0.985 for LVOTA for intra-observer variability, while for inter-observer variability it was 0.951 for MAA and 0.962 for LVOTA. Conclusion 2DE overestimates MA dimensions and underestimates LVOT dimensions thus overestimating RV and RF. 3DE measures are relatively simple and reproducible. Proposed cut-offs for RV, RF and VCA 3D have a good diagnostic power.

scholarly journals The reliability and validity of goniometric elbow measurements in adults: A systematic review of the literature

2018 ◽  
Vol 10 (4) ◽  
pp. 274-284 ◽  
Author(s):  
Suzanne F van Rijn ◽  
Elisa L Zwerus ◽  
Koen LM Koenraadt ◽  
Wilco CH Jacobs ◽  
Michel PJ van den Bekerom ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Interrater Reliability ◽  
Literature Search ◽  
Meta Analysis ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Diagnostic Reliability ◽  
Measuring Tool ◽  
Simple Measuring

Background The universal goniometer is a simple measuring tool. With this review we aimed to investigate the reliability and validity of the universal goniometer in measurements of the adults' elbow. Methods Preferred Reporting Items for Systematic reviews and Meta-Analysis guidelines were followed and our study protocol was published online at PROSPERO. A literature search was conducted on relevant studies. Methodological quality was assessed using the Quality Appraisal of Diagnostic Reliability (QAREL) scoring system. Results Out of 697 studies yielded from our literature search, 12 were included. Six studies were rated as high quality. The intrarater reliability intraclass correlation coefficient ranged from 0.45 to 0.99, the interrater reliability ranged from intraclass correlation coefficient 0.53–0.97. One study providing instructions on goniometric alignment did not find a difference in expert versus non-expert examiners. Another study in which examiners were not instructed found a higher interrater reliability in expert examiners. One study investigating the validity of the goniometer in elbow measurements found a maximum standard error of the mean of 11.5° for total range of motion. Discussion Overall, the studies showed high intra- and interrater reliability of the universal goniometer. The reliability of the universal goniometer in non-expert examiners can be increased by clear instructions on goniometric alignment.

Development and Validation of a Questionnaire to Measure Attitude change in Health Professionals after Completion of an Aboriginal Health and Cultural Safety Training Programme

2017 ◽  
Vol 48 (01) ◽  
pp. 24-38 ◽  
Author(s):  
Courtney Ryder ◽  
Tamara Mackean ◽  
Shahid Ullah ◽  
Heather Burton ◽  
Heather Halls ◽  
...  
Keyword(s):  
Health Professional ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Attitude Change ◽  
Focal Point ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Weighted Kappa ◽  
Aboriginal Health ◽  
Cultural Safety

Socially accountable health curricula, designed to decrease Aboriginal health inequities through the transformation of health professional students into culturally safe practitioners, has become a focal point for health professional programmes. Despite this inclusion in health curricula there remains the question of how to best assess students in this area in relation to the concept, of cultural safety and transformative unlearning, to facilitate attitudinal change. To address this question, this study developed a research questionnaire to measure thematic areas of transformative unlearning, cultural safety and critical thinking in Aboriginal Health for application on undergraduate and postgraduate students and faculty staff. The Likert-scale questionnaire was developed and validated through face and content validity. Test–retest methodology was utilised to determine stability and reliability of the questionnaire with 40 participants. The extent of agreement and reliability were determined through weighted kappa and intraclass correlation coefficient. Exploratory factor analysis was calculated to determine construct validity for questionnaire items. For the overall population subset the tool met good standards of reliability and validity, with 11 of the 15 items reaching moderate agreement (κ > 0.6) and an intraclass correlation coefficient of 0.72, suggesting substantial agreement. Cronbach's alpha was calculated above 0.7 for the thematic areas. The majority of items provided high factor loadings, low loading items will be reviewed to strengthen the tool, where validations of the revised tool with a larger cohort will allow future use to compare and determine effective teaching methodologies in Aboriginal health and cultural safety curricula.

The Neurologic and Adaptive Capacity Score Is Not a Reliable Method of Newborn Evaluation

2001 ◽  
Vol 94 (6) ◽  
pp. 958-962 ◽  
Author(s):  
Stephen H. Halpern ◽  
Judith A. Littleford ◽  
Nicole J. Brockhurst ◽  
Paul J. Youngs ◽  
Nariman Malik ◽  
...  
Keyword(s):  
Adaptive Capacity ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Obstetric Anesthesia ◽  
Measurement Scales ◽  
Health Measurement ◽  
Vertex Presentation ◽  
Test Retest Reliability

Background The Neurologic and Adaptive Capacity Score (NACS) is a multi-item scale that was published in 1982 to measure the effects of intrapartum drugs on the neonate. Although this scoring system has been widely used in obstetric anesthesia research, studies confirming its reliability have not been published. The purpose of this study was to assess the reliability of the NACS. Methods Two teams of observers were trained to perform the NACS on healthy, term neonates born in the vertex presentation. Two examinations were performed on each neonate within the first 2.5 h of life. Simultaneous (or "split-half") reliability was assessed using the alpha coefficient. Test-retest reliability was assessed using the intraclass correlation coefficient. The test was considered to be reliable if a was greater than 0.7 and the intraclass correlation coefficient was greater than 0.6. Results Two hundred babies were studied. The a was 0.47 and the intraclass correlation coefficient was 0.38 (95% confidence interval, 0.24-0.52). Conclusions The NACS had poor reliability both on simultaneous testing and in the test-retest situation when used to evaluate term, healthy neonates. The authors suggest that other measures need to be developed to evaluate the effect of intrapartum drug administration in the neonate. Health measurement scales should undergo rigorous assessment for reliability and validity before they are used in clinical practice or for research purposes.

scholarly journals Visual versus automatic ultrasound scoring of lung B-lines: reliability and consistency between systems

2019 ◽  
Vol 21 (1) ◽  
pp. 45 ◽  
Author(s):  
Jorge Short ◽  
Carlos Acebes ◽  
Guido Rodriguez-de-Lema ◽  
Giuliana Maria Concetta La Paglia ◽  
Maria Pavón ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Automatic System ◽  
Interobserver Reliability ◽  
Intraclass Correlation ◽  
Counting System ◽  
Observer Reliability ◽  
Automatic Counting ◽  
B Lines

Aims. To evaluate the agreement between a visual and an automatic counting system of lung B-lines by ultrasound (US) as well as to test the inter- and intra-observer reliability of both systems in patients with lung diseases.Material and methods. We included four patients with different lung conditions. Four ultrasonographers expert in lung US blindly, independently and consecutively performed, in two rounds, a US B-mode assessment of 8 lung intercostal spaces of each patient. Each US assessment consisted of a visual and an automatic counting of B-lines.Results. Agreement between visual and automatic counting of B-lines was good to excellent [intraclass correlation coefficient (ICC) 0.79-0.84, p<0.001]. Intra-observer reliability was good to excellent [ICC 0.62-0.99, p<0.001] except for one investigator in whom it was close to moderate for the automatic system [ICC 0.49, p<0.05]. Inter-observer reliability was excellent for both systems in both rounds [ICC 0.86-0.90, p<0.001].Conclusions. US automatic counting was consistent with US visual counting of lung B-lines, as performed by experts in the field. Both systems showed a high intra- and interobserver reliability.

Are Three-Dimensional–Printed Foot Orthoses Able to Cover the Podiatric Physician's Needs?

2021 ◽  
Vol 111 (5) ◽  
Author(s):  
Edem Allado ◽  
Mathias Poussel ◽  
Isabelle Chary-Valckenaere ◽  
Clément Potier ◽  
Damien Loeuille ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Thermoplastic Polyurethane ◽  
Intraclass Correlation ◽  
Three Dimensional ◽  
Strong Relationship ◽  
Foot Orthoses ◽  
The Relationship ◽  
Hardness Values

Background Current management of foot pain requires foot orthoses (FOs) with various design features (eg, wedging, height) and specific mechanical properties (eg, hardness, volume). Development of additive manufacturing (three-dimensional [3-D] printing) raises the question of applying its technology to FO manufacturing. Recent studies have demonstrated the physical benefits of FO parts with specific mechanical properties, but none have investigated the relationship between honeycomb architecture (HcA) infilling density and Shore A hardness of thermoplastic polyurethane (TPU) used to make FOs, which is the aim of this study. Methods Sixteen different FO samples were made with a 3-D printer using TPU (97 Shore A), with HcA infilling density ranging from 10 to 40. The mean of two Shore A hardness measurements was used in regression analysis. Results Interdurometer reproducibility was excellent (intraclass correlation coefficient, 0.91; 95% confidence interval [CI], 0.64–0.98; P &lt; .001) and interprinter reproducibility was excellent/good (intraclass correlation coefficient, 0.84; 95% CI, 0.43–0.96; P &lt; .001). Linear regression showed a positive significant relationship between Shore A hardness and HcA infilling density (R2 = 0.955; P &lt; .001). Concordance between evaluator and durometer was 86.7%. Conclusions This study revealed a strong relationship between Shore A hardness and HcA infilling density of TPU parts produced by 3-D printing and highlighted excellent concordance. These results are clinically relevant because 3-D printing can cover Shore A hardness values ranging from 40 to 70, representing most FO production needs. These results could provide important data for 3-D manufacturing of FOs to match the population needs.

Reliability and Validity of the Sit-to-Stand as a Muscular Power Measure in Older Adults

2020 ◽  
Vol 28 (3) ◽  
pp. 455-466 ◽  
Author(s):  
Jennifer J. Sherwood ◽  
Cathy Inouye ◽  
Shannon L. Webb ◽  
Jenny O
Keyword(s):  
Older Adults ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Handgrip Strength ◽  
Intraclass Correlation ◽  
Negative Relationship ◽  
Reliability And Validity ◽  
Sit To Stand ◽  
Relationship Of ◽  
The Relationship

The study aims were to analyze the reliability and validity of the GymAware™ linear position transducer’s velocity and power measures during the sit-to-stand, compared with the Dartfish 2D videography analysis, and to assess the relationship of age and handgrip strength with velocity and power in 48 older men and women (77.6 ± 11.1 years). The results showed excellent agreement between GymAware- and Dartfish-derived sit-to-stand velocity (intraclass correlation coefficient2-1 = .94 and power intraclass correlation coefficient2-1 = .98) measures. A moderate and negative relationship was found between age and velocity (r = −.62; p < .001) and age and power (r = −.63; p < .001). A moderate and positive relationship was found between handgrip strength and velocity (r = .43; p = .002) and handgrip strength and power (r = .54; p < .001). The results show the GymAware velocity and power measures during the sit-to-stand in older adults to be reliable and valid.

The Reliability and Validity of the Turkish Kaiser Physical Activity Survey for Pregnant Women

2019 ◽  
Vol 16 (11) ◽  
pp. 962-967
Author(s):  
Esra Uzelpasaci ◽  
Türkan Akbayrak ◽  
Serap Özgül ◽  
Ceren Orhan ◽  
Emine Baran ◽  
...  
Keyword(s):  
Physical Activity ◽  
Pregnant Women ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Retest Reliability ◽  
Test Retest Reliability ◽  
Activity Survey ◽  
Activity Questionnaire

Background: Evaluation of physical activity by condition-specific surveys provides more accurate results than generic physical activity questionnaires. The aim of this study was to investigate the reliability and validity of the Kaiser Physical Activity Survey (KPAS) in Turkish pregnant women. Methods: In the translation and cultural adaptation of the KPAS, the 6-phase guidelines recommended in the literature were followed. The study included a total of 151 pregnant women who were assessed using the Turkish version of KPAS, the Pregnancy Physical Activity Questionnaire, and the SenseWear Pro3 Armband. To determine the test–retest reliability, the KPAS was reapplied after 7 days. The psychometric properties of KPAS were analyzed with respect to internal consistency, test–retest reliability, and concurrent validity. Results: Cronbach α coefficient indicating the internal consistency of the Turkish KPAS was found to be .60 to .80, showing moderate reliability. The intraclass correlation coefficient for test–retest reliability was very strong (intraclass correlation coefficient: .96–.98). The total KPAS scores were found to be moderately correlated with the total Pregnancy Physical Activity Questionnaire score and the total energy expenditure value on the SenseWear Pro3 Armband. Conclusions: This study showed that KPAS is a valid and reliable instrument for evaluating physical activity in Turkish pregnant women in different aspects.

scholarly journals Reliability and Validity of the Belt-Stabilized Handheld Dynamometer in Hip- and Knee-Strength Tests

2017 ◽  
Vol 52 (9) ◽  
pp. 809-819 ◽  
Author(s):  
Jaqueline Martins ◽  
Janaina Rodrigues da Silva ◽  
Marcelo Rodrigues Barbosa da Silva; ◽  
Débora Bevilaqua-Grossi
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Minimal Detectable Change ◽  
Detectable Change ◽  
Isokinetic Dynamometer ◽  
Hip Muscle ◽  
Bland Altman Method ◽  
Muscle Groups

Context:  The belt-stabilized handheld dynamometer (HHD) has been used to assess the strength of knee- and hip-muscle groups. However, few researchers have examined its reliability and validity for assessing the strength of these muscles. Objective:  To evaluate the intra-examiner reliability of the belt-stabilized HHD and its validity and agreement with the isokinetic dynamometer for assessing the strength of knee- and hip-muscle groups. Design:  Cross-sectional study. Setting:  University laboratory. Patients or Other Participants:  We evaluated 26 healthy participants (13 men, 13 women; age = 23.5 ± 2.8 years, height = 1.7 ± 0.1 m, mass = 68.6 ± 12.4 kg) in 2 sessions using the belt-stabilized HHD and an isokinetic dynamometer for maximum strength of the hip adductors, abductors, flexors, extensors, internal rotators, and external rotators and the knee flexors and extensors. Main Outcome Measure(s):  We used reliability values provided by the intraclass correlation coefficient (2,3), standard error of measurement (SEM and percentage SEM), and minimal detectable change; correlation values comparing the belt-stabilized HHD and the isokinetic instrument using the Pearson correlation coefficient (r); and the mean difference in values comparing the 2 instruments using the Bland-Altman method. Results:  The intrarater HHD reliability was excellent for most measurements (range = 0.80–0.96; SEM = 1.3–5.3 kilograms of force or 4.8−18.9 Nm, percentage SEM = 7.0%–22.0%, minimal detectable change = 3.6–18.8 kilograms of force or 13.2−52.4 Nm) and was moderate only for bilateral knee flexion and left hip internal rotation (intraclass correlation coefficient [2,3] = 0.62–0.66 and 0.70, respectively). Correlation with the isokinetic dynamometer was moderate to high (r = 0.60–0.90), but the absolute values did not demonstrate concordance between results using the Bland-Altman method. Conclusions:  The belt-stabilized HHD measurements were reliable, and although they did not agree with those from the isokinetic dynamometer, the values were correlated for the hip- and knee-muscle groups.

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