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作 者:Theo Cojean Cecile Batailler Henri Robert Laurence Cheze
机构地区:[1]Univ Lyon,Univ Gustave Eiffel,Univ Claude Bernard Lyon 1,LBMC UMR_T 9406,F-69622,Lyon,France [2]Hopital de La Croix-Rousse,Lyon,France [3]Centre Hospitalier Du Haut Anjou,Chateau-Gontier,Sur-Mayenne,France [4]Universite Gustave Eiffel-Campus de Bron,Laboratoire de Biomecanique et Mecanique des Chocs,25 Avenue François Mitterrand,69,500 Bron,France
出 处:《Medicine in Novel Technology and Devices》2023年第3期61-69,共9页医学中新技术与新装备(英文)
基 金:The ethics committee of our institution approved our study protocol and amendments(n°22.04729.000226).
摘 要:Sagittal knee laxity is often quantified using arthrometers. Adding rotational laxity and compliance measurementsis relatively new and could bring new information for anterior cruciate ligament (ACL) injury diagnosis. TheDYNEELAX® is a new knee arthrometer able to evaluate simultaneously tibial translation and rotation. Thepurpose is to assess the sensitivity, reproducibility and repeatability of the DYNEELAX® with a prototype leg toprovide accurate instructions before using it in clinical practice. Sensitivity is studied by varying 7 parameters(positioning and sensors), and reproducibility by repeating measurement series with a group of two experiencedoperators and a group of two non-experienced operators. Repeatability is assessed throughout the study. Theresults showed that DYNEELAX® is poorly sensitive to the angle and the position of the displacement sensor, andthe angle of the rotation sensor. It is a bit sensitive to positioning of patella and ankle supports. It is very sensitiveto the tightening of the patella and ankle supports. It exists a significant difference only between groups (p <0.001), but there is no significant difference between the two experienced operators (p > 0.215), or between thetwo non-experienced operators (p > 0.229). Variation coefficients for intra-series are on average inferior to 5% fortranslation and rotation tests. Then, the DYNEELAX® presented encouraging results with a good accuracy and agood reliability but operators must be careful about positioning.
关 键 词:DYNEELAX® Arthrometer Anterior cruciate ligament LAXITY REPEATABILITY REPRODUCIBILITY Sensitivity
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