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Updated: Aug 17, 2025

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
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Published on: July 2, 2021

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Guided Growth Improves Coxa Valga and Hip Subluxation in Children With Hereditary Multiple Exostoses

Tun-Yu Hung1, Kuan-Wen Wu2, Chia-Che Lee2

  • 1Department of Medical Education.

Journal of Pediatric Orthopedics
|December 12, 2022
PubMed

Insights

Guided growth effectively corrects coxa valga and hip subluxation in children with hereditary multiple exostoses (HME). This safe procedure shows predictable results, improving hip alignment and potentially preventing further deformities.

Area of Science:

  • Orthopedic surgery
  • Pediatric orthopedics
  • Skeletal dysplasias

Background:

  • Hereditary multiple exostoses (HME) frequently causes coxa valga and hip subluxation in children.
  • Surgical interventions for hip subluxation in HME are not well-documented.
  • This study addresses the limited literature on managing hip deformities in HME.

Purpose of the Study:

  • To evaluate the efficacy of guided growth for correcting coxa valga and hip subluxation in pediatric HME patients.
  • To assess radiographic improvements following guided growth procedures.
  • To determine the safety and predictability of guided growth in this population.

Main Methods:

  • Retrospective review of 12 HME patients undergoing guided growth for hip deformities (2012-2019).
  • Minimum 2-year follow-up with analysis of key radiographic parameters (e.g., head-shaft angle, acetabular index, migration percentage).
  • Statistical comparison of pre-operative and post-operative radiographic measurements using paired t-tests and Wilcoxon signed rank tests.

Main Results:

  • Significant improvements observed in head-shaft angle (12±5°), Hilgenreiner-epiphyseal angle (12±5°), and Reimer migration percentage (7%±8%).
  • Low revision rate (19%) and no reported complications.
  • Outcomes comparable to guided growth studies in other pediatric hip conditions.

Conclusions:

  • Guided growth is a safe and effective procedure for improving hip radiographic parameters in children with HME.
  • The technique demonstrates potential in preventing coxa valga and hip subluxation progression.
  • Predictable results support guided growth as a viable therapeutic option for HME-related hip deformities.
Abstract

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