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[Bone lengthening in children]
F Vázquez Rueda1, F Blanco López, J Ayala Montoro
1Servicio de Cirugía Pediátrica, Hospital Universitario Reina Sofía, Córdoba.
Summary
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.
- 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.