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AAP Grand Rounds 12:37 (2004) Interpreting the Mechanism of Injury in Pediatric Long Bone FracturesSource: Pierce MC, Bertocci GE, Vogeley E, et al. Evaluating long bone fractures in children: a biomechanical approach with illustrative cases. Child Abuse Negl. 2004;28:505524.[Medline]
This review presents a paradigm for understanding how bones respond to external forces and for interpreting fracture patterns as a guide to mechanism of injury. The authors from the University of Pittsburgh, Pa and the University of Louisville, Ky, begin by reviewing the literature regarding the biomechanics of bone injury and the anatomic and developmental features of pediatric bone that influence the response to various loading patterns. They correlate fracture morphology with the injury mechanisms. Five patterns of long-bone injury are discussed:
Spiral fractures arise from torsional forces. While often
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