Internal Fixation of Unstable Pelvic Ring Injuries via the Modified Stoppa Approach

Background: The modified Stoppa approach was first described in 1993 by Hirvensalo as an alternative to the ilioinguinal approach for treatment of pelvic ring fracture. Methods: This is a retrospective study of 5 patients with unstable pelvic fracture treated with internal fixation using the modified Stoppa approach. Residual displacement of the pelvic ring was measured and graded using the methods described by Matta and Lindahl. Functional outcomes were assessed using the modified Merle D’ Aubigne and Postel Hip scoring system. Results: Of all patients with Type C pelvic injury, three had concomitant acetabular fracture. The mean Injury Severity Score (ISS) score was 39. Anatomic reduction of the pelvic ring was achieved in 3 patients and good reduction in 2 patients. Three patients had good functional outcomes. One patient had superficial wound infection. Three patients had erectile dysfunction. Conclusion: The modified Stoppa approach is appropriate for internal fixation of unstable pelvic ring injury.