Subclinical bilateral involvement of the hip in patients with slipped capital femoral epiphysis - A multicentre study

Yusuke Kohno, Yasuharu Nakashima, Toshio Kitano, Tomoyuki Nakamura, Kazuyuki Takamura, Mio Akiyama, Daisuke Hara, Takuaki Yamamoto, Goro Motomura, Masanobu Ohishi, Satoshi Hamai, Iwamoto Yukihide

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5 Citations (Scopus)

Abstract

Purpose: This study was conducted to assess the posterior inclination of the contralateral femoral epiphysis in patients with unilateral slipped capital femoral epiphysis (SCFE). Methods: The posterior sloping angle (PSA) was measured using lateral radiographs in 67 patients with a unilateral SCFE and in 41 age-matched normal controls. A symptomatic epiphyseal slip was defined as the development of SCFE. Results: The contralateral PSA in SCFE patients was more widely distributed and significantly larger compared to controls (15.0°vs. 9.0°, p < 0.0001). Forty-seven hips (70.1 %) had a PSA of greater than 12.8°, which was +2SD of the control hips. Of the 65 hips excluding the two cases with prophylactic pinning, 11 hips (16.9 %) eventually developed a contralateral SCFE during adolescence and their PSA at the initial visit was significantly larger compared to patients without a contralateral SCFE (18.0°vs. 14.3°, p < 0.005) with a cutoff value of 19°. Conclusions: These findings suggested the possibility of bilateral hip involvement in SCFE patients. Hips with greater degrees of PSA (> 19°) are likely to become symptomatic.

Original languageEnglish
Pages (from-to)477-482
Number of pages6
JournalInternational Orthopaedics
Volume38
Issue number3
DOIs
Publication statusPublished - Mar 2014

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine

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