Remodelling of femoral head-neck junction in slipped capital femoral epiphysis

A multicentre study

Mio Akiyama, Yasuharu Nakashima, Toshio Kitano, Tomoyuki Nakamura, Kazuyuki Takamura, Yusuke Kohno, Takuaki Yamamoto, goro motomura, Masanobu Ohishi, Satoshi Hamai, Yukihide Iwamoto

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Purpose: We examined the remodelling of the femoral head-neck junction in patients with slipped capital femoral epiphysis (SCFE) and the frequency of residual cam deformities. Methods: We reviewed 69 hips in 56 patients with stable SCFE who had undergone in situ pinning. Mean age at slip was 11.7 years and the follow-up period 63.4 months. Cam deformity was evaluated using the anterior offset alpha (α) angle and head-neck offset ratio (HNOR). Results: The average α angle and HNOR significantly improved from 76.2 to 51.3 and 0.086 to 0.135, respectively; 25 hips (36.2 %) still had an α angle greater than 50, and 32 hips (46.4 %) had an HNOR of under 0.145. A multivariate analysis selected age at onset and slip angle as risk factors for cam deformity, with cutoff values 11.1 years and 21.0, respectively. Conclusions: Although most hips had remodelling of the head-neck junction, 29.4 % had residual cam deformities that may be susceptible to femoroacetabular impingement.

Original languageEnglish
Pages (from-to)2331-2336
Number of pages6
JournalInternational Orthopaedics
Volume37
Issue number12
DOIs
Publication statusPublished - Dec 1 2013

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Slipped Capital Femoral Epiphyses
Femur Neck
Multicenter Studies
Hip
Neck
Head
Femoracetabular Impingement
Age of Onset
Multivariate Analysis

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Remodelling of femoral head-neck junction in slipped capital femoral epiphysis : A multicentre study. / Akiyama, Mio; Nakashima, Yasuharu; Kitano, Toshio; Nakamura, Tomoyuki; Takamura, Kazuyuki; Kohno, Yusuke; Yamamoto, Takuaki; motomura, goro; Ohishi, Masanobu; Hamai, Satoshi; Iwamoto, Yukihide.

In: International Orthopaedics, Vol. 37, No. 12, 01.12.2013, p. 2331-2336.

Research output: Contribution to journalArticle

Akiyama, M, Nakashima, Y, Kitano, T, Nakamura, T, Takamura, K, Kohno, Y, Yamamoto, T, motomura, G, Ohishi, M, Hamai, S & Iwamoto, Y 2013, 'Remodelling of femoral head-neck junction in slipped capital femoral epiphysis: A multicentre study', International Orthopaedics, vol. 37, no. 12, pp. 2331-2336. https://doi.org/10.1007/s00264-013-2047-6
Akiyama, Mio ; Nakashima, Yasuharu ; Kitano, Toshio ; Nakamura, Tomoyuki ; Takamura, Kazuyuki ; Kohno, Yusuke ; Yamamoto, Takuaki ; motomura, goro ; Ohishi, Masanobu ; Hamai, Satoshi ; Iwamoto, Yukihide. / Remodelling of femoral head-neck junction in slipped capital femoral epiphysis : A multicentre study. In: International Orthopaedics. 2013 ; Vol. 37, No. 12. pp. 2331-2336.
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