Injuries of the sternoclavicular region indicate concomitant lesions and need distinguished imaging.

PURPOSE: To evaluate injuries of the sternoclavicular region as indicator injury for relevant concomitant injuries and to evaluate the modalities of initial imaging. We hypothesised a high incidence of concomitant injuries as well as a deficiency of X-ray as the initial gold standard.

METHODS: We retrospectively analysed patients suffering from injuries of the sternoclavicular region between 2002 and 2017. We analysed amongst injury type and severity, initial imaging (X-ray vs. CT scan of the sternoclavicular region vs. whole-body scan), and complement of imaging with regard to defined concomitant injury localisations and the resulting necessity and urgency of surgery.

RESULTS: We included n = 61 patients. The mean ISS was 13.5 ± 17, n = 13 (21.3%) cases were classified as "severely injured" (ISS ≥ 16). N = 29 (47.5%) achieved an initial X-ray, n = 10 (16.4%) an initial CT scan of the sternoclavicular region, and n = 22 (36%) an initial whole-body CT scan. Initial imaging correlated significantly with ISS. In n = 21 (72.4%) cases of the X-ray group a significant complement from X-ray to CT scan of the sternoclavicular region was indicated (p ≤ 0.001). N = 31 (50.8%) patients suffered from concomitant injuries. N = 39 (63.9%) of all patients underwent any kind of surgery, thereof n = 23 (37.7%) related to their sternoclavicular injuries.

CONCLUSION: Injuries of the sternoclavicular complex are indicators for the presence of multiple injuries. A CT scan of the sternoclavicular region including ipsilateral apex of the lung and upper rib cage comprised a large proportion of concomitant injuries. Mapping those injuries during initial imaging improves treatment process, avoids underdiagnostic, and decreases uncertainties.