It is known that during a fall, a child would rather protect their dominant hand by using the non-dominant one, although the role of handedness in upper limb fractures has not been studied in-depth. We carried out a retrospective, cross-sectional cohort study, including pediatric patients who presented to the emergency room with a supracondylar humerus fracture following an injury by falling from the same height. In total, 245 patients were selected and grouped according to age. In the 1-3 years group, no statistical significance was found between hand dominance and the side of fracture (p = 0.7315). During preschool years (4-6 years old), the non-dominant hand is more often involved (p = 0.03, odds ratio: 3.5). In the 7-14 years group this trend was maintained and actually increased (p = 0.052, odds ratio: 3.8). We might conclude that children tend to protect their dominant hand by falling on their non-dominant one. The main objective of this study is to highlight a link between handedness and the side of the body where the hand fracture will be identified in the pediatric population, regarding supracondylar humerus fracture.
Keywords: fracture laterality; handedness; humerus fracture; pediatric; pediatric orthopedics; supracondylar humerus fracture; upper limb fracture.