Predictive factors for acetabular labral lesions in osteoarthritis of the hip with radial magnetic resonance imaging - A cross-sectional study

Makoto Takazawa, Junichi Nakamura, Isao Abe, Seiji Ohtori, Atsuya Watanabe, Yasunori Sato, Takahisa Sasho, Sumihisa Orita, Masahiko Suzuki, Ken Motoori, Yoshitada Masuda, Kazuhisa Takahashi, Shunji Kishida

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Objectives. To document the reliability of Abe’s classification and to clarify the predictive factors for acetabular labral lesions in osteoarthritis of the hip with radial magnetic resonance (MR) imaging. Methods. Reliability trial for the classification of acetabular labral lesion was performed by six orthopedic surgeons, grading 20 radial MR images in a blinded fashion at an interval of 4-5 weeks. Radial MR images of 275 hips in 263 patients were prospectively analyzed to determine the relationship between acetabular labral lesions, their distribution, age, and the acetabular coverage. Results. Cohen’s quadratic weighted kappa of inter-observer reliability was 0.784 for the grade and 0.812 for the shape category. The weighted kappa of intra-observer reliability was 0.852 for the grade and 0.90 for the shape category. Multiple regression analysis revealed that both the grade and the shape were associated with age, acetabular coverage, and location of the labrum. Conclusions. Abe’s classification of labral lesions was reliable for both the grade and shape categories. Aging, acetabular dysplasia, and the anterosuperior portion would be predictive factors for degeneration of the acetabular labrum using radial MR imaging.

Original languageEnglish
Pages (from-to)974-979
Number of pages6
JournalModern rheumatology
Volume24
Issue number6
DOIs
Publication statusPublished - 2014 Nov 1
Externally publishedYes

Keywords

  • Acetabular labral lesions
  • Osteoarthritis of the hip
  • Prognostic factor
  • Radial magnetic resonance imaging

ASJC Scopus subject areas

  • Rheumatology

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    Takazawa, M., Nakamura, J., Abe, I., Ohtori, S., Watanabe, A., Sato, Y., Sasho, T., Orita, S., Suzuki, M., Motoori, K., Masuda, Y., Takahashi, K., & Kishida, S. (2014). Predictive factors for acetabular labral lesions in osteoarthritis of the hip with radial magnetic resonance imaging - A cross-sectional study. Modern rheumatology, 24(6), 974-979. https://doi.org/10.3109/14397595.2014.886542