Mouarbes Dany, Cavaignac Etienne, Chiron Philippe, Bérard Emilie, Murgier Jérôme
Department of Orthopedic and Traumatology, CHU Toulouse, Toulouse, France.
Epidemiology Department, CHU Toulouse, Toulouse, France.
J Orthop. 2018 Jan 30;15(1):94-98. doi: 10.1016/j.jor.2018.01.031. eCollection 2018 Mar.
There is a main concern about the usefulness and the accuracy of the different laximeters. The GnrB device is becoming more popular, but according to the literature it's not clear whether it is fully reliable.
GNRB laxity measurements are not reproducible for measurement of anterior translation of the tibia.
We analyzed the reproducibility of GNRB measurements in healthy subjects by the Test-Retest method in 2 sessions.
30 pairs of healthy knees were assessed. Test-Retest agreement was poor for both absolute values and for differentials at 134 and 200 N with an intra-class correlation ranging from 0.210 to 0.486. There was a significant differance in anterior tibial translation, in side-to-side difference, according to the patellar pressure.
The reproducibility is found to be poor under optimum conditions of comparability. The patellar pressure influences strongly thelaxity value.
人们主要关注不同松弛度测量仪的实用性和准确性。GnrB设备越来越受欢迎，但根据文献，尚不清楚它是否完全可靠。
GNRB松弛度测量对于胫骨前移测量不可重复。
我们通过重测法在两个阶段分析了健康受试者中GNRB测量的可重复性。
评估了30对健康膝关节。在134和200 N时，绝对值和差值的重测一致性均较差，组内相关性范围为0.210至0.486。根据髌股压力，胫骨前移的左右差异存在显著差异。
发现在最佳可比性条件下可重复性较差。髌股压力对松弛度值有强烈影响。
