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SCAPULA FRACTURE IN POLYTRAUMA PATIENTS



Abstract

Purpose: To determine any relation between scapular fracture, severity of chest injury and mortality in patients with multiple injuries.

Patients and Methods: We reviewed 621 consecutive patients admitted over a five year period (1995–1999) with multiple injuries. All had an associated chest injury. Such details were recorded and analyzed as – mechanism of injury, ISS, AIS for chest, GCS, ICU stay, total hospital stay, operations performed, presence or absence of scapular fracture, complications and mortality. Patients with chest injury but without scapula fracture formed the control group of the study.

Results: Out of 621 patients with multiple injuries (mean ISS 27.5), 79 (17 women) (12.72%) – group 1 were identified with scapular fractures. 542 (122 women) patients with chest injury but no scapular fracture formed the control group – group 2. The mean age of group 1 was 42 years versus 40 years of group 1 and the mean ISS was 27.12 (SD 15.13) and 28. 41 (SD 14.21) in group 1 and group 2 respectively (p value > 0.05). In group 1 the chest AIS was 3.46 (SD 1.10) and 3.18 (SD 1.06) in group 2 (p value < 0.05).The most common associated chest injury in group 1 was pneumothorax (28%) followed by pulmonary contusion (15.2%) whereas in group 2 it was likewise pneumothorax (20%) followed by pulmonary contusion (21%). There were 8 (10.1%) flail segments in the scapula group, versus 50 flail segments (9%) in the non scapula group. In group 1 there was an incidence of 3.8 % associated thoracic vertebral fractures compared to 8.3% in group 2. 2.6 % of patients in group 1 had major vessel injury or cardiac laceration as compared to 3 % in group 2. There were 4 brachial plexus injuries in group 1 (5.1%) versus nil in group 2. In group 1, 32 (40.5%) patients had sustained associated abdominal injuries mean AIS 3.1 versus 190 (34.6%) in group 2 with a mean AIS of 2.9. In the scapula group there were 31 clavicle fractures, 12 humerus fractures and 4 shoulder dislocations. In the non-scapula group there were 137 clavicle fractures, 93 fractures of the humerus and 2 shoulder dislocations. The mean hospital stay in both groups was 22 days (range 5–153). In group 1 the mortality rate was 11.4% (9 patients) mean ISS 48 (range 24–75) versus 25% (136 patients) mean ISS 41.3 (range 17–75) in group 2.

Conclusion: Patients with scapular fractures were found to have a higher chest and abdominal AIS. Overall, the scapular fracture was not associated with higher ISS or higher mortality and does not correlate with a poorer outcome.

Correspondence should be addressed to 8 Martiou Str. Panorama, Thessaloniki PC:55236, Greece.