Assessing Pediatric Pelvic Fracture Patterns: New Insights and Unique Fracture Characteristics

Area of Science:

• Orthopedic surgery
• Pediatric traumatology
• Biomechanical analysis of fractures

Background:

• Pediatric pelvic ring fractures exhibit unique biomechanics and anatomy compared to adults.
• Current classification systems inadequately assess mechanical stability, risking underestimation of injury severity and suboptimal treatment.
• A need exists for improved classification to guide pediatric pelvic fracture management.

Purpose of the Study:

• To describe a cohort of pediatric pelvic fracture patients.
• To identify specific pediatric pelvic fracture patterns and characteristics.
• To evaluate the applicability of existing adult-based classification systems in pediatric populations.

Main Methods:

• Retrospective cohort study of pediatric pelvic fracture patients (2001-2021) at a Level 1 trauma center.
• Fracture patterns classified using Tile, Young and Burgess, and Torode and Zieg systems, considering skeletal maturity.
• Analysis of specific pediatric fracture characteristics and incidence.

Main Results:

• Reviewed CT scans of 68 pediatric patients; median age 15.5 years, 53% female; traffic accidents most common (65%).
• Most fractures classified as Tile type B2 (53%) and Young & Burgess LC3 (32%).
• High incidence of SI-joint avulsion fractures (21%), particularly in skeletally mature patients (71%); 73-75% of fractures did not fit conventional classifications.

Conclusions:

• Existing classifications are insufficient for both skeletally mature and immature pediatric patients, indicating a need for a tailored pediatric system.
• APC2-like patterns frequently involve SI-joint avulsions; purely ligamentous APC patterns are rare in children.
• A novel pediatric fracture pattern (ped-LC3) was identified, emphasizing the need for further research into skeletal maturation's biomechanical impact.