Knee Noise

Charalambous, Charalambos Panayiotou

doi:10.1007/978-3-030-54506-2_19

Cited by 1 publication

(1 citation statement)

References 8 publications

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“…These can be assessed during physical examination; however, this one is of a highly subjective nature [ 2 , 14 , 15 , 16 ]. As mentioned before—crepitations are regarded as a manifestation of degenerative changes or abnormalities in joints [ 2 , 17 , 18 , 19 , 20 , 21 ]. The use of VAG can be considered a more sensitive and accurate diagnostic method [ 2 , 17 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Using Nonlinear Vibroartrographic Parameters for Age-Related Changes Assessment in Knee Arthrokinematics

Kręcisz

Bączkowicz

Kawala-Sterniuk

2022

Sensors

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Changes in articular surfaces can be associated with the aging process and as such may lead to quantitative and qualitative impairment of joint motion. This study is aiming to evaluate the age-related quality of the knee joint arthrokinematic motion using nonlinear parameters of the vibroarthrographic (VAG) signal. To analyse the age-related quality of the patellofemoral joint (PFJ), motion vibroarthrography was used. The data that were subject to analysis represent 220 participants divided into five age groups. The VAG signals were acquired during flexion/extension knee motion and described with the following nonlinear parameters: recurrence rate (RR) and multi-scale entropy (MSE). RR and MSE decrease almost in a linear way with age (main effects of group p<0.001; means (SD): RR=0.101(0.057)−0.020(0.017); and MSE=20.9(8.56)−13.6(6.24)). The RR post-hoc analysis showed that there were statistically significant differences (p<0.01) in all comparisons with the exception of the 5th–6th life decade. For MSE, statistically significant differences (p<0.01) occurred for: 3rd–7th, 4th–7th, 5th–7th and 6th life decades. Our results imply that degenerative age-related changes are associated with lower repeatability, greater heterogeneity in state space dynamics, and greater regularity in the time domain of VAG signal. In comparison with linear VAG measures, our results provide additional information about the nature of changes of the vibration dynamics of PFJ motion with age.

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