Skeletal Survey Utilization in All Young Children with Specific Injury Presentations. Percentage of children who underwent skeletal survey, grouped by injury type. Abbreviations: CI, confidence interval; ICH, intracranial hemorrhage; N, sample size; TBI, traumatic brain injury. a Evaluated primarily at non-pediatric hospitals. bLong bone was defined as femur, humerus, ulna, radius, tibia, and/or fibula. c The institutional protocol required skeletal survey performance in infants ≤ 18 months old with isolated skull fractures. Based on the data provided by the authors, we estimated that the SS utilization percentage for infants < 12 months old in this study would be between 89% and 95%.