IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v19y2022i3p1387-d734763.html
   My bibliography  Save this article

Can Hip-Knee Line Angle Distinguish the Size of Pelvic Incidence?—Development of Quick Noninvasive Assessment Tool for Pelvic Incidence Classification

Author

Listed:
  • Shota Yamada

    (Department of Occupational and Environmental Health, Graduate School of Medical Sciences, Nagoya City University, Nagoya 4678601, Japan
    Department of Rehabilitation, Nagoya City University West Medical Center, Nagoya 4628508, Japan)

  • Takeshi Ebara

    (Department of Occupational and Environmental Health, Graduate School of Medical Sciences, Nagoya City University, Nagoya 4678601, Japan)

  • Toru Uehara

    (Department of Rehabilitation, Nagoya City University West Medical Center, Nagoya 4628508, Japan)

  • Taro Matsuki

    (Department of Occupational and Environmental Health, Graduate School of Medical Sciences, Nagoya City University, Nagoya 4678601, Japan)

  • Shingo Kimura

    (Department of Rehabilitation, Nagoya City University West Medical Center, Nagoya 4628508, Japan)

  • Yuya Satsukawa

    (Department of Rehabilitation, Nagoya City University West Medical Center, Nagoya 4628508, Japan)

  • Akira Yoshihara

    (Department of Rehabilitation, Nagoya City University West Medical Center, Nagoya 4628508, Japan)

  • Kazuji Aoki

    (Faculty of Rehabilitation Sciences, Nagoya Gakuin University, Nagoya 4568612, Japan)

  • Atsushi Inada

    (Spine Center, Department of Orthopedic Surgery, Nagoya City University West Medical Center, Nagoya 4628508, Japan)

  • Michihiro Kamijima

    (Department of Occupational and Environmental Health, Graduate School of Medical Sciences, Nagoya City University, Nagoya 4678601, Japan)

Abstract

This study aimed to explore effective measurement angles for pelvic incidence (PI) classification and to develop a quick, noninvasive assessment tool for PI classification. We defined five variation types of hip–knee line (HKL) angles and tested the discrimination ability of the receiver operating characteristic (ROC) analysis using 125 photographs of upright standing posture from the right lateral side. ROC analysis revealed an applicable HKL angle defined by the line connecting the most raised part of the buttock and the central point of the knee and the midthigh line. The acceptable cut-off points for discriminating small or large PIs in terms of HKL angle were 18.5° for small PI (sensitivity, 0.91; specificity, 0.79) and 21.5° for large PI discrimination (sensitivity, 0.74; specificity, 0.72). In addition, we devised a quick noninvasive assessment tool for PI classification using the cut-offs of the HKL angle with a view to practical application. The results of intra- and inter-rater reliability ensured a substantial/moderate level of the tool (Cohen’s kappa coefficient, 0.79; Fleiss’s kappa coefficient, 0.50–0.54). These results revealed that the HKL angle can distinguish the size of the PI with a high/moderate discrimination ability. Furthermore, the tool indicated acceptable inter-/intra-rater reliability for practical applications.

Suggested Citation

  • Shota Yamada & Takeshi Ebara & Toru Uehara & Taro Matsuki & Shingo Kimura & Yuya Satsukawa & Akira Yoshihara & Kazuji Aoki & Atsushi Inada & Michihiro Kamijima, 2022. "Can Hip-Knee Line Angle Distinguish the Size of Pelvic Incidence?—Development of Quick Noninvasive Assessment Tool for Pelvic Incidence Classification," IJERPH, MDPI, vol. 19(3), pages 1-14, January.
  • Handle: RePEc:gam:jijerp:v:19:y:2022:i:3:p:1387-:d:734763
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/19/3/1387/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1660-4601/19/3/1387/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:19:y:2022:i:3:p:1387-:d:734763. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.