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Related Experiment Videos

[Bone lengthening in children]

F Vázquez Rueda1, F Blanco López, J Ayala Montoro

  • 1Servicio de Cirugía Pediátrica, Hospital Universitario Reina Sofía, Córdoba.

Cirugia Pediatrica : Organo Oficial De La Sociedad Espanola De Cirugia Pediatrica
|October 1, 1993
PubMed
Summary
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This study evaluated limb lengthening in children using a dynamic axial fixator (DAF) system. The DAF system achieved significant limb lengthening with manageable complications, offering a viable treatment option for pediatric limb length discrepancies.

Area of Science:

  • Orthopedic Surgery
  • Pediatric Orthopedics
  • Biomedical Engineering

Context:

  • Limb length discrepancies in children require effective surgical interventions.
  • The dynamic axial fixator (DAF) system offers advanced capabilities for limb lengthening procedures.
  • This study reviews a significant number of pediatric limb lengthening cases performed over several decades.

Purpose:

  • To assess the efficacy and outcomes of limb lengthening using a dynamic axial fixator (DAF) system in pediatric patients.
  • To analyze the average length increase, healing index, and complication rates associated with DAF-assisted limb lengthening.
  • To evaluate the application of DAF for both congenital and acquired limb length discrepancies in children.

Summary:

  • A total of 45 limb lengthening procedures were performed on 34 children (ages 3-15) using a dynamic axial fixator (DAF) system.

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  • The DAF system facilitated osteotomy and callotasis (bone lengthening) or chondrodiatasis (growth plate distraction), achieving an average limb length increase of 5.5 cm.
  • Healing indices were recorded as 32.1 days/cm for femurs and 28.2 days/cm for tibias. Common complications included superficial pin tract infections (73%), knee instability, and patellar subluxation.

    • Impact:

    • Demonstrates the effectiveness of the dynamic axial fixator (DAF) system in achieving substantial limb lengthening in pediatric patients.
    • Provides valuable data on healing times and complication profiles, aiding orthopedic surgeons in managing patient expectations and treatment strategies.
    • Highlights the DAF system's versatility in addressing various etiologies of limb length discrepancies, including achondroplasia and Turner's syndrome.