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01-12-2013 | Original Paper

Remodelling of femoral head–neck junction in slipped capital femoral epiphysis: a multicentre study

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

Published in: International Orthopaedics | Issue 12/2013

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.

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Title: Remodelling of femoral head–neck junction in slipped capital femoral epiphysis: a multicentre study
Authors: Mio Akiyama
Yasuharu Nakashima
Toshio Kitano
Tomoyuki Nakamura
Kazuyuki Takamura
Yusuke Kohno
Takuaki Yamamoto
Goro Motomura
Masanobu Ohishi
Satoshi Hamai
Yukihide Iwamoto
Publication date: 01-12-2013
Publisher: Springer Berlin Heidelberg
Published in: International Orthopaedics / Issue 12/2013
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI: https://doi.org/10.1007/s00264-013-2047-6

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Remodelling of femoral head–neck junction in slipped capital femoral epiphysis: a multicentre study

Abstract

Purpose

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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