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Assessment of the reliability of a non-invasive elbow valgus laxity measurement device
PURPOSE: The purpose of this study was to assess the reliability of a new objective measurement tool to measure the valgus stress laxity of the ulnar collateral ligament (UCL) of the elbow, the “Elbow Tester”. The anterior oblique portion of the ulnar collateral ligament (UCL) of the elbow is the pr...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7522144/ https://www.ncbi.nlm.nih.gov/pubmed/32989568 http://dx.doi.org/10.1186/s40634-020-00290-2 |
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author | Seiber, Kenneth Bales, Chris Wörner, Elisabeth Lee, Thay Safran, Marc R. |
author_facet | Seiber, Kenneth Bales, Chris Wörner, Elisabeth Lee, Thay Safran, Marc R. |
author_sort | Seiber, Kenneth |
collection | PubMed |
description | PURPOSE: The purpose of this study was to assess the reliability of a new objective measurement tool to measure the valgus stress laxity of the ulnar collateral ligament (UCL) of the elbow, the “Elbow Tester”. The anterior oblique portion of the ulnar collateral ligament (UCL) of the elbow is the primary static restraint to valgus stress during the overhead throwing motion. The main research question was if the “Elbow Tester” that we have developed was reliable and reproducible for further use in research and daily practice. METHODS: Three different examiners tested both elbows of 11 volunteers for UCL laxity. Each elbow was tested 5 times using a standard 2 Nm valgus load, and 3 times using a manual maximum valgus load. One examiner tested the volunteers again 1 week later. The outcomes of elbow valgus laxity were compared between examiners. The intraobserver reliability was assessed using an intraclass correlation coefficient (ICC) and interobserver reliability was also assessed with a mixed model repeated ANOVA test. RESULTS: The device demonstrated a high level of intraobserver reliability with both the 2 Nm valgus force and manual maximum valgus force, using a minimum of three trials as determined by an ICC > 0.9 for all examiners. The interobserver reliability was moderate using the 2 Nm valgus load with an ICC value of 0.72 and significant different outcomes of elbow valgus laxity amongst examiners (p < 0.01). A high interobserver reliability (ICC value of 0.90) was observed using manual maximum valgus force and no differences between outcomes (p > 0.53). CONCLUSION: The noninvasive valgus elbow tester demonstrates high interobserver and intraobserver reliability using manual maximum valgus force and can be used for further research and daily practice. |
format | Online Article Text |
id | pubmed-7522144 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-75221442020-10-14 Assessment of the reliability of a non-invasive elbow valgus laxity measurement device Seiber, Kenneth Bales, Chris Wörner, Elisabeth Lee, Thay Safran, Marc R. J Exp Orthop Original Paper PURPOSE: The purpose of this study was to assess the reliability of a new objective measurement tool to measure the valgus stress laxity of the ulnar collateral ligament (UCL) of the elbow, the “Elbow Tester”. The anterior oblique portion of the ulnar collateral ligament (UCL) of the elbow is the primary static restraint to valgus stress during the overhead throwing motion. The main research question was if the “Elbow Tester” that we have developed was reliable and reproducible for further use in research and daily practice. METHODS: Three different examiners tested both elbows of 11 volunteers for UCL laxity. Each elbow was tested 5 times using a standard 2 Nm valgus load, and 3 times using a manual maximum valgus load. One examiner tested the volunteers again 1 week later. The outcomes of elbow valgus laxity were compared between examiners. The intraobserver reliability was assessed using an intraclass correlation coefficient (ICC) and interobserver reliability was also assessed with a mixed model repeated ANOVA test. RESULTS: The device demonstrated a high level of intraobserver reliability with both the 2 Nm valgus force and manual maximum valgus force, using a minimum of three trials as determined by an ICC > 0.9 for all examiners. The interobserver reliability was moderate using the 2 Nm valgus load with an ICC value of 0.72 and significant different outcomes of elbow valgus laxity amongst examiners (p < 0.01). A high interobserver reliability (ICC value of 0.90) was observed using manual maximum valgus force and no differences between outcomes (p > 0.53). CONCLUSION: The noninvasive valgus elbow tester demonstrates high interobserver and intraobserver reliability using manual maximum valgus force and can be used for further research and daily practice. Springer Berlin Heidelberg 2020-09-28 /pmc/articles/PMC7522144/ /pubmed/32989568 http://dx.doi.org/10.1186/s40634-020-00290-2 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Original Paper Seiber, Kenneth Bales, Chris Wörner, Elisabeth Lee, Thay Safran, Marc R. Assessment of the reliability of a non-invasive elbow valgus laxity measurement device |
title | Assessment of the reliability of a non-invasive elbow valgus laxity measurement device |
title_full | Assessment of the reliability of a non-invasive elbow valgus laxity measurement device |
title_fullStr | Assessment of the reliability of a non-invasive elbow valgus laxity measurement device |
title_full_unstemmed | Assessment of the reliability of a non-invasive elbow valgus laxity measurement device |
title_short | Assessment of the reliability of a non-invasive elbow valgus laxity measurement device |
title_sort | assessment of the reliability of a non-invasive elbow valgus laxity measurement device |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7522144/ https://www.ncbi.nlm.nih.gov/pubmed/32989568 http://dx.doi.org/10.1186/s40634-020-00290-2 |
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