Preliminary study of optimal measurement location on vibroarthrography for classification of patients with knee osteoarthritis

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Author(s)

    • Ota Susumu
    • Department of Rehabilitation and Care, Seijoh University: 2-172 Fukinodai, Tokai, Aichi 476-8588, Japan
    • Ando Akiko
    • Department of Physical Therapy, School of Health Sciences, Nagoya University, Japan
    • Tozawa Yusuke
    • Department of Mechanical Engineering, Graduate School of Science and Engineering, Tokyo Metropolitan University, Japan
    • Nakamura Takuya
    • Department of Physical Therapy, School of Health Sciences, Nagoya University, Japan
    • Okamoto Shogo
    • Department of Mechanical Sciences and Engineering, Graduate School of Engineering, Nagoya University, Japan
    • Sakai Takenobu
    • Graduate School of Science and Engineering, Saitama University, Japan
    • Hase Kazunori
    • Department of Mechanical Engineering, Graduate School of Science and Engineering, Tokyo Metropolitan University, Japan

Abstract

<p> [Purpose] The aims of the present study were to investigate the most suitable location for vibroarthrography measurements of the knee joint to distinguish a healthy knee from knee osteoarthritis using Wavelet transform analysis. [Subjects and Methods] Participants were 16 healthy females and 17 females with severe knee osteoarthritis. Vibroarthrography signals were measured on the medial and lateral epicondyles, mid-patella, and tibia using stethoscopes with a microphone while subjects stood up from a seated position. Frequency and knee flexion angles at the peak wavelet coefficient were obtained. [Results] Peak wavelet coefficients at the lateral condyle and tibia were significantly higher in patients with knee osteoarthritis than in the control group. Knee joint angles at the peak wavelet coefficient were smaller (more extension) in the osteoarthritis group compared to the control group. The area under the receiver operating characteristic curve on tibia assessment with the frequency and knee flexion angles was higher than at the other measurement locations (both area under the curve: 0.86). [Conclusion] The tibia is the most suitable location for classifying knee osteoarthritis based on vibroarthrography signals.</p>

Journal

  • Journal of Physical Therapy Science

    Journal of Physical Therapy Science 28(10), 2904-2908, 2016

    The Society of Physical Therapy Science

Codes

  • NII Article ID (NAID)
    130005249861
  • Text Lang
    ENG
  • ISSN
    0915-5287
  • Data Source
    J-STAGE 
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