Biomechanical Analysis of Sagittal Plane Pin Placement Configurations for Pediatric Supracondylar Humerus Fractures

Anterior to posterior (AP) pinning is the recommended sagittal pin configuration in divergent lateral entry coronal of pediatrics supracondylar fractures. However, there was still a lack evidence regarding alternative pins configurations. We aimed compare construct stiffness configurations by using synthetic bone models. Sixty pediatric humeri were osteotomized create fracture. After fracture reduction, all specimens fixed plane with four different patterns plane: AP, crossed, and parallel configuration. Each tested five loading patterns. The AP had significantly lower than (p = 0.003) 0.005) external rotation tests. highest extension, valgus, loads, but under extension load crossed provides greater other due maximal spreading distance at site angle lock mechanism.