Detection of Meniscal Tear Effects on Tibial Vibration Using Passive Knee Sound Measurements.

ABSTRACT:

Objective

To evaluate whether non-invasive knee sound measurements can provide information related to the underlying structural changes in the knee following meniscal tear. These changes are explained using an equivalent vibrational model of the knee-tibia structure.

Methods

First, we formed an analytical model by modeling the tibia as a cantilever beam with the fixed end being the knee. The knee end was supported by three lumped components with features corresponding with tibial stiffnesses, and meniscal damping effect. Second, we recorded knee sounds from 46 healthy legs and 9 legs with acute meniscal tears (n = 34 subjects). We developed an acoustic event ("click") detection algorithm to find patterns in the recordings, and used the instrumental variable continuous-time t

SUBMITTER: Ozmen GC 

PROVIDER: S-EPMC8284919 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature