• Yusuke Kohno, Yasuharu Nakashima, Toshio Kitano, Tomoyuki Nakamura, Kazuyuki Takamura, Mio Akiyama, Daisuke Hara, Takuaki Yamamoto, Goro Motomura, Masanobu Ohishi, Satoshi Hamai, and Iwamoto Yukihide.
• Orthopaedic Surgery, Kyushu University, Fukuoka, Japan.
• Int Orthop. 2014 Mar 1;38(3):477-82.

PurposeThis study was conducted to assess the posterior inclination of the contralateral femoral epiphysis in patients with unilateral slipped capital femoral epiphysis (SCFE).MethodsThe 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.ResultsThe 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°.ConclusionsThese findings suggested the possibility of bilateral hip involvement in SCFE patients. Hips with greater degrees of PSA (> 19°) are likely to become symptomatic.

24 keywords...

hide…