From theory to practice: insights into intervention development of the NON-STOP app for children with Perthes'

Adam M Galloway1,2, Anna M Anderson1,3, Emma Casimir4

  • 1University of Leeds, Leeds, UK.

Bone & Joint Open
|July 14, 2025
PubMed

Insights

Developing healthcare interventions requires strong theory for better engagement and effectiveness. This study guides complex intervention development using a digital tool for children with Perthes' disease.

Area of Science:

  • Healthcare Intervention Development
  • Digital Health Tools
  • Pediatric Orthopaedics

Background:

  • Healthcare interventions often lack theoretical grounding, impacting engagement and effectiveness.
  • Complex interventions require structured development approaches.
  • Digital self-management tools offer potential for pediatric chronic condition management.

Purpose of the Study:

  • To provide practical guidance on developing complex healthcare interventions.
  • To illustrate the development process using a digital tool for pediatric Perthes' disease.
  • To share lessons learned for future intervention development.

Main Methods:

  • Application of the Medical Research Council (MRC) framework for complex interventions.
  • Integration of psychological theory to inform intervention design.
  • Inclusion of stakeholder engagement throughout the development process.

Main Results:

  • A digital self-management tool, the Non-Surgical Treatment of Perthes' (NON-STOP) app, was developed for children with Perthes' disease.
  • The development process highlighted the importance of theoretical basis, psychological principles, and stakeholder input.
  • Practical considerations and lessons learned were identified for developing similar interventions.

Conclusions:

  • A structured approach, integrating theory and stakeholder input, is crucial for effective complex intervention development.
  • The NON-STOP app exemplifies a theoretically-informed digital intervention for pediatric orthopaedic conditions.
  • Findings offer actionable insights for clinicians and researchers in developing future healthcare interventions.

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