Obese children more likely to have complex elbow fractures, further complications

"These findings show that children diagnosed with obesity are more likely to sustain these complex fractures from something as simple as falling onto an outstretched hand while standing, and these types of falls are quite common," said author Michelle S. Caird, MD, assistant professor in the department of orthopaedic surgery at the University of Michigan. "Our research aims to remind parents that there are many serious risks to childhood obesity, including fractures and surgical complications. It's important to ensure that children get the proper amount of exercise and to build their bone banks early in life to a strong and healthy frame."

Specific Study Details

• More than 350 patients ranging in age from 2 to 11 years old who had undergone operative treatment for supracondylar humeral fractures were included in the study.
• Patient records were reviewed for demographic data, body mass index (BMI) percentile, and injury data.
• Forty-one children were underweight (BMI <5^th percentile), 182 were normal weight (BMI in the 5^th to 85^th percentile), 63 were overweight (BMI in the >85^th percentile), and 68 were obese (BMI in the >95^th percentile).
• The study included 149 patients with type-2 fractures (a break through part of the bone at the growth plate and crack through the bone shaft), 11 of whom were diagnosed with obesity; and 205 patients with type-3 fractures, 57 of whom were diagnosed with obesity.
• Complex fractures were defined as Type-3 fractures (completely displaced), fractures with multiple fracture lines, open fractures where the bone is exposed through the skin, and multiple fractures in the same arm.
• Using logistic regression, obesity was associated with complex fractures and more complications.

Key Study Finding

• This is the first study to assess the implications of obesity on this type of a fracture and it validates the public health efforts in combating childhood obesity.

Similar studies also have shown that overweight children who break their femur (thigh bone) are more likely to need bigger surgery and have more complications than children who are not overweight.

"Future research needs to focus on modifying obesity in kids to test if that changes fracture complexity and complication profiles," Caird added. "We also should focus on research to improve childhood bone health overall whether this is more calcium, vitamin D, exercise or a combination of such measures to help further build and maintain a skeleton that can structurally and metabolically support the person through their lifetime."