RESUMO
OBJECTIVE: To investigate the risk of postoperative surgical site infections after plate fixation of the anterior pelvic ring subsequent to preperitoneal pelvic packing (PPP). DESIGN: Retrospective observational cohort study. SETTING: Level I academic trauma center. PATIENTS: Adult trauma patients with unstable pelvic ring injuries requiring surgical fixation of the anterior pelvic ring. INTERVENTION: Pelvic plate fixation was performed as a staged procedure after external fixation and PPP/depacking (PPP group; n = 25) or as a single-stage primary internal fixation (control group; n = 87). MAIN OUTCOME MEASURE: Incidence of postoperative surgical site infections of the pelvic space. RESULTS: Anterior pelvic plate fixation was performed in 112 patients during a 5-year study period. The PPP group had higher injury severity scores and transfused packed red blood cells than the control group (injury severity score: 46 ± 12.2 vs. 29 ± 1.5; packed red blood cells: 13 ± 10 vs. 5 ± 2; P < 0.05). The mean time until pelvic depacking was 1.7 ± 0.6 days (range: 1-3 days) and 3.4 ± 3.7 days (range: 0-15 days) from depacking until pelvic fracture fixation. Two patients in the PPP group and 8 patients in the control group developed a postoperative infection requiring a surgical revision (8.0% vs. 9.2%; n.s.). Both PPP patients with a pelvic space infection had undergone anterior plate fixation for associated acetabular fractures. CONCLUSIONS: These data support the safety of the PPP protocol for bleeding pelvic ring injuries due to the lack of increased infection rates after fracture fixation. Caution should be applied when considering PPP in patients with associated acetabular fractures. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.