What is the most appropriate definitive treatment for an isolated, closed midshaft femoral fracture in a healthy 3-year-old child weighing 15 kg with 1.5 cm of overriding?
A
Early application of a hip spica cast
B
Rigid antegrade intramedullary nailing via the trochanter
C
Submuscular bridge plating
D
Flexible titanium intramedullary nailing
Explanation
Early spica casting remains the standard of care and AAOS guideline recommendation for diaphyseal femur fractures in preschool-aged children (6 months to 5 years) who meet size criteria.
Clinical Context: The management algorithm for pediatric femoral shaft fractures is dictated primarily by patient age and weight.
- Ages 0-6 months: Pavlik harness or spica cast.
- Ages 6 months to 5 years (and < 20 kg): Early spica casting is indicated for fractures with acceptable alignment and 20 kg): Flexible intramedullary nailing (e.g., TENs) is the gold standard, providing internal splinting while allowing early mobilization and avoiding physeal injury.
- Ages > 11 years (or > 50 kg): Rigid lateral entry trochanteric nails or submuscular plating are preferred due to the high risk of loss of fixation with flexible nails in heavier/older patients.
References:
1. Jauquier N, et al. 'American Academy of Orthopaedic Surgeons Clinical Practice Guideline on the Treatment of Pediatric Diaphyseal Femur Fractures.' J Am Acad Orthop Surg. 2015.
2. Flynn JM, et al. 'Titanium elastic nails for pediatric femur fractures: a multicenter study of early results with analysis of complications.' J Pediatr Orthop. 2001.