Comparison of surgical fixation and non-operative management in patients with traumatic sternum fracture.

Purpose: The incidence of sternal fractures in blunt trauma patients lies between 3 and 7%. The role, timing and indications for surgical management are not well delineated and remain controversial for patients undergoing surgical stabilization of sternum fracture (SSSF). We sought to identify the national rate of SSSF in patients with a sternum fracture hypothesizing patients undergoing SSSF will have a decreased rate of mortality and complications.

Methods: The Trauma Quality Improvement Program (2015-2016) was queried for patients with sternum fracture. Propensity scores were calculated to match patients undergoing SSSF to patients managed non-operatively in a 1:2 ratio using demographic data.

Results: From 9460 patients with a sternum fracture, 114 (1.2%) underwent SSSF. After propensity-matching, 112 SSSF patients were compared to 224 patients undergoing non-operative management (NOM). There were no differences in matched characteristics (all p > 0.05). Compared to patients undergoing NOM, patients undergoing SSSF had an increased median length of stay (LOS) (16 vs. 7 days, p < 0.001), ICU LOS (9.5 vs. 5.5 days, p = 0.016) and ventilator days (8 vs. 5, p = 0.035). The SSSF group had a similar rate of ARDS (2.7% vs. 2.2%, p = 0.80), pneumonia (1.8% vs. 0.9%, p = 0.48) and unplanned intubation (8.9% vs. 5.8%, p = 0.29) but a lower mortality rate (2.7% vs. 11.2%, p = 0.008).

Conclusion: Just over 1% of patients with sternum fracture underwent SSSF in a national analysis. Patients undergoing SSSF had an increased LOS and similar rate of all measured pulmonary complications, however a lower mortality rate compared to patients managed non-operatively.