| Title |
The acoustical analysis of knee sound for non-invasive diagnosis of articular pathology |
| Authors |
김거식(Kim Keo-Sik) ; 박경세(Park Gyung-Se) ; 김경섭(Kim Kyeong-Seop) ; 송철규(Song Chul-Gyu) |
| Keywords |
Knee Joint Sound ; Fundamental Frequency ; Mean Amplitude ; Jitter ; Shimmer |
| Abstract |
This paper describes the possibility of evaluating and classifying arthritic pathology using the acoustical analysis of knee joint sound. Six normal subjects and 11 patients with knee problems were enrolled. Patients were divided into the 1st patient group which required an orthopeadic surgery and the 2nd patient group of osteoarthritis. During sitting and standing periods, subjects' active knee flexion and extension were monitored. Fundamental frequency, mean amplitude of pitch, jitter and shimmer were analyzed according to the position. The results demonstrate that the values of fundamental frequency, jitter and shimmer of the 2nd patient group were larger than others and changed unstably. The values of the standing position were larger than the sitting position. |