Body mass index and Blount disease

Area of Science:

• Pediatric Orthopedics
• Pediatric Endocrinology
• Public Health

Background:

• Childhood obesity in North America is a growing epidemic.
• Blount disease, a condition affecting bone growth in the leg, often requires surgical intervention.
• The relationship between weight metrics and Blount disease surgical listing needs further investigation.

Purpose of the Study:

• To determine if Body Mass Index (BMI) and BMI percentile (BMI %) are associated with the likelihood of surgical listing for Blount disease in children.
• To analyze these associations in different age groups (infantile vs. late-onset).

Main Methods:

• Retrospective analysis of 102 children presenting with Blount disease.
• Statistical analysis of Body Mass Index (BMI) and BMI percentile (BMI %) in relation to surgical listing.
• Subgroup analysis for infantile (age < 3) and late-onset (age > 3) groups.

Main Results:

• A significant association was found between higher BMI and BMI % and the likelihood of being listed for Blount disease surgery.
• In late-onset Blount disease, both BMI and BMI % were significant predictors of surgical listing.
• In infantile Blount disease, only BMI was a significant predictor of surgical listing.

Conclusions:

• Elevated BMI and BMI percentile in children are associated with an increased probability of surgical intervention for Blount disease.
• Weight reduction strategies in children may potentially decrease the incidence of Blount disease requiring surgery.
• Further research is warranted to confirm these associations and explore the impact of weight management.