Value of chest CT over skeletal surveys in detection of rib fractures in pediatric patients

• Published in: Clinical imaging 2022-02, Vol.82, p.103-109
• Main Authors: Pomeranz, Christy B., Barrera, Christian A., Servaes, Sabah E.
• Format: Article
• Language: English
• Subjects: Accuracy; Age; Bone healing; Chest; Child; Child Abuse; Child abuse & neglect; Children & youth; Computed tomography; Fractures; Healing; Humans; Injuries; Non-accidental trauma; Patients; Pediatric CT; Pediatric musculoskeletal; Pediatric radiology; Pediatrics; Pelvis; Polls & surveys; Radiation; Radiographs; Radiography; Radiology; Retrospective Studies; Rib; Rib fracture; Rib Fractures - diagnostic imaging; Rib Fractures - epidemiology; Ribs; Sensitivity analysis; Skeletal survey; Tomography, X-Ray Computed; Trauma
• ISSN: 0899-7071; 1873-4499
• DOI: 10.1016/j.clinimag.2021.11.008

Recent literature has raised concerns about the sensitivity and accuracy of radiographs at diagnosing rib fractures. Studies have shown that chest computed tomography (CT) has far greater sensitivity at detecting rib fractures than radiographs. The purpose of this study was to evaluate the sensitivity of skeletal survey (SS) radiographs at diagnosis of rib fractures compared to CT in the pediatric population. This retrospective review included 57 patients who had undergone both a SS and a CT chest or CT chest/abdomen/pelvis within 30 days of each other for the indication of either non-accidental (NAT) or accidental trauma between 2009 and 2017. Images and reports were analyzed by a pediatric radiology fellow for presence/absence of fracture, evidence of healing and location of rib fracture, including rib level, location within the rib (anterior, lateral, and posterior), and side (right versus left). 225 rib fractures were identified in 25 patients on CT. 38 of those fractures were missed on the preceding SS, yielding a miss rate of 17%. Acute fractures were more likely to be missed than chronic or healing fractures (p ≤ 0.01). Location within the rib did not impact rib detection on radiographs. Left-sided rib fractures were not more common in NAT patients, compared to accidental trauma. SS miss approximately 17% of all rib fractures and CT is more sensitive modality in the detection of rib fractures, particularly acute rib fractures, regardless of location. Low-dose Chest CT could be a helpful modality in the work-up of NAT trauma. •Skeletal survey radiographs and CT were compared for accuracy and sensitivity at detecting rib fractures in children.•225 rib fractures were detected in 25 patients.•Skeletal survey radiographs missed 17% of rib fractures subsequently detected on CT.•Acute fractures more likely to be missed than chronic fractures.•Fracture location and sidedness did not impact fracture visualization.