The effectiveness of adding guided growth to soft tissue release in treating spastic hip displacement

Huan Sheu, Wei C. Lee, Hsuan K. Kao, Wen E. Yang, Chia H. Chang*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

2 Scopus citations

Abstract

Background: Guided growth at the proximal femur using one transphyseal screw corrects coxa valga and improves hip displacement in cerebral palsy. This study aimed to validate the effects of adding guided growth (GG) to soft tissue release (STR), in terms of decreasing the migration percentage (MP), compared to those with soft tissue alone. Methods: This retrospective study comprised patients with cerebral palsy who underwent soft tissue release alone (Group STR) or soft tissue release plus guided growth (Group GG) for hip displacement (mean age, 8.1 years; mean follow-up, 4.9 years). Difference in the MP and rate of controlling MP <40% at 2 years postoperatively and rate of revision surgeries at 5 years postoperatively were compared between the groups. Results: The two groups were comparable in age, side, and gross motor function level, but Group GG (n = 24) had more severe hip displacement preoperatively than did Group STR (n = 64). Group GG had a significantly greater 2-year decrease in the MP (−14.8% vs. −11.8%, p < 0.05) than did Group STR. Among patients with a pre-operative MP >50%, the rate of MP <40% was greater in Group GG (73%) than in Group STR (41%). Revision surgeries, mainly repeated guided growth and soft tissue release, were comparable between the groups. Conclusions: This is the first comparative study to support adding guided growth to soft tissue release, as it results in greater improvements in hip displacement than that with soft tissue release alone. Non-ambulatory patients or severe hip displacement with MP 50%–70% could benefit from this less aggressive surgery by controlling the MP under 40% without femoral osteotomy.

Original languageEnglish
Pages (from-to)1082-1088
Number of pages7
JournalJournal of Orthopaedic Science
Volume27
Issue number5
DOIs
StatePublished - 09 2022

Bibliographical note

Publisher Copyright:
© 2021 The Japanese Orthopaedic Association

Keywords

  • Cerebral palsy
  • Guided growth
  • Hip displacement
  • Soft tissue release

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