Comparison of dynamic versus static external fixation for pediatric femur fractures
Authors
Domb BG, Sponseller PD, Ain M, Miller NH
PMID: 12131435
Purpose
To determine whether axial dynamization of external fixation improves healing outcomes in pediatric femur fractures compared to static fixation.
Methods
A randomized controlled trial was conducted on 53 femur fractures in 52 pediatric patients treated between 1995 and 1999. Patients were randomized to either dynamic (axial motion allowed) or static external fixation. Outcomes included time to early callus formation, full healing on radiographs, fixator removal, and full weight-bearing.
Key Findings
- Time to early callus formation was similar between dynamic (23.2 days) and static (24.9 days) fixation groups (P = 0.627).
- Complete radiographic healing averaged 70.1 days in the dynamic group and 63.1 days in the static group (P = 0.370).
- No statistically significant differences were observed in fixator removal or return to full weight-bearing.
Conclusion
Axial dynamization does not significantly affect healing time or complication rates in pediatric femur fractures treated with external fixation.
What This Means for Patients
For children with femur fractures treated using external fixation, allowing motion (dynamization) does not improve healing speed or outcomes. Static fixation remains a reliable and effective method.