Age-Related Impairment of Quality of Joint Motion in Vibroarthrographic Signal Analysis

Abstract

Aging is associated with degenerative changes in articular surfaces leading to quantitative and qualitative impairment of joint motion. Therefore, the aim of this study is to evaluate an age-related quality of the patellofemoral joint (PFJ) motion in the vibroarthrographic (VAG) signal analysis. Two hundred and twenty individuals were enrolled in this study and divided into five groups according to age. The VAG signals were collected during flexion/extension knee motion using an acceleration sensor and described using four parameters (VMS, P1, P2, and H). We observed that values of parameters VMS, P1, and P2 increase in accordance with the age, but H level decreases. The most significant differences were achieved between the youngest and the oldest participants' groups. Moreover, we show that parameters VMS, P1, and P2 positively correlate with age, contrary to negatively associated H parameter. Our results suggest that the impairment of joint motion is a result of age-related osteoarticular degenerative changes.

Joint Motion Quality in Chondromalacia Progression Assessed by Vibroacoustic Signal Analysis

“…Hence, the authors suggest a role for more sensitive and responsive diagnostic techniques in the assessment of mild and moderate disorders. One of these methods for direct analysis of crepitations could be vibroarthrography (VAG), which seems to support physical examination for objective assessment of quality of joint motion [13,14].…”

Knee Acoustic Emission Characteristics of the Healthy and the Patients with Osteoarthritis Using Piezoelectric Sensor

“…In this study, the AE signals were measured by attaching sensors to the medial epicondyle of the tibia, the lateral epicondyle of the tibia, and the front of the patella in the same position as the previous studies. (19)(20)(21)(22) Two IMU sensors were also attached to the thigh and the tibia to calculate knee joint angle because an IMU sensor has the advantages of low price, small size, and light weight, unlike camera-based motion analysis systems. Baczkowics et al (21) analyzed AE signals in normal knee and chondromalacia patients during knee flexion and extension.…”

“…(19)(20)(21)(22) Two IMU sensors were also attached to the thigh and the tibia to calculate knee joint angle because an IMU sensor has the advantages of low price, small size, and light weight, unlike camera-based motion analysis systems. Baczkowics et al (21) analyzed AE signals in normal knee and chondromalacia patients during knee flexion and extension. The results indicated that the amplitude of the AE signal was larger in the patients compared to those in the normal group, and frequencies were confirmed in the 100 Hz-1 kHz range.…”

“…Air microphones do not involve signal losses due to motion artifacts, although they are vulnerable to ambient noise. Baczkowicz et al (21) compared AE signals of normal and chondromalacia patients in the patella using a piezoelectric accelerometer. The variability, amplitude, and significant difference in the chondrogenic grade of AE signals in patients with chondromalacia exceeded those of the normal group.…”

Knee osteoarthritis detection based on the combination of empirical mode decomposition and wavelet analysis

“…The knee OA mainly occurs in the elderly (Shamir et al, 2009). About 30% of people over the age of 65 suffer from knee OA (Bączkowicz, Majorczyk, & Kręcisz, 2015). Moreover, the incidence of knee OA is higher in females than in males, and its possibility increases with age.…”