Feature Extraction of Knee Joint Vibroarthrographic (VAG) Signal Using Statistical Means

The purpose of the present preliminary investigation is to characterize the vibration signal between normal and symptomatic knee joint. Accelerometers were attached to the medial and lateral retinaculum of dominant knee to acquire the vibration signal induced during flexion and extension of leg. Signals were compared in time and frequency domain and statistical analysis were performed using mean, variance, standard deviation, skewness and kurtosis. The results show that the frequency range for the symptomatic VAG signal is higher than the normal. The results confirm that the proposed approach is indeed feasible for the non-invasive diagnosis of knee pathology disorders.

[1]  F. Noyes,et al.  Biomechanics of the knee-extension exercise. Effect of cutting the anterior cruciate ligament. , 1984, The Journal of bone and joint surgery. American volume.

[2]  A. Chhabra,et al.  Chapter 2 Anatomy and Biomechanics of the Cruciate Ligaments and Their Surgical Implications , 2013 .

[3]  E B Hunziker,et al.  Articular cartilage repair: basic science and clinical progress. A review of the current status and prospects. , 2002, Osteoarthritis and cartilage.

[4]  F. Guilak,et al.  Dynamic loading enhances integrative meniscal repair in the presence of interleukin-1. , 2010, Osteoarthritis and cartilage.

[5]  R.M. Rangayyan,et al.  Analysis of knee vibration signals using linear prediction , 1992, IEEE Transactions on Biomedical Engineering.

[6]  P. Tung,et al.  Extraction and Screening of Knee Joint Vibroarthrographic Signals Using Independent Component Analysis Method , 2007 .

[7]  J. Bloem,et al.  Osteoarthritis of the knee: association between clinical features and MR imaging findings. , 2006, Radiology.

[8]  Hee-Cheol Kim,et al.  A Review of Accelerometer-Based Physical Activity Measurement , 2011, ICITCS.

[9]  Kuala Lumpur,et al.  A Review on Feature Extraction & Classification Techniques for Biosignal Processing (Part III: Electromyogram) , 2008 .

[10]  J. Dingle.  Cartilage maintenance in osteoarthritis: interaction of cytokines, NSAID and prostaglandins in articular cartilage damage and repair. , 1991, The Journal of rheumatology. Supplement.

[11]  J. Irrgang,et al.  Biomechanical considerations for rehabilitation of the knee. , 2000, Clinical biomechanics.