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Acetabular fractures are complex intra-articular fractures. The extra-pelvic ilioinguinal (IL) has been the workhorse for the anterior approach and remains the gold standard. The major difference between the IL and the Stoppa approaches is that Stoppa allows for the avoidance of the middle window of the IL approach. Hence, the modified Stoppa approach (MSA) can be adopted by a comparatively less experienced surgeon with minimal complications. The purpose of this study is to evaluate the radiological and functional outcomes of patients operated on using the MSA.  Materials and methods  Patients operated on by the MSA for acetabular fractures with a minimum of one year of clinical and radiographic follow-ups were reviewed. CT scans and radiographs were evaluated for the fracture pattern, time to surgery, operative time, blood loss, quality of reduction (Matta criterion), FO [Harris hip score (HHS) and Nach Merle d'Aubigné and Postel score (NMAPS)] and complications (perioperative and follow-up). Twenty-three of 26 patients with 45 acetabular fractures operated between January 2016 and November 2018 were included. Descriptive statistics were used for demographic data, and Pearson’s chi-squared statistic was calculated for the association between radiological and functional outcomes.  Results   Among the 23 patients, the mean age was 38.5 years (range: 15-65) with a male-to-female ratio of 18:5. The average time to surgery was 11.5 days (range: 2-32), operating time was 155 minutes (range: 90-243), and average blood loss was 650 ml (range: 500-1,250). A supplemental lateral window was used in 20 patients (87%), and three underwent the combined anterior and posterior [Kocher Langenbacks (KL)] approach. All cases were unilateral. The transverse fracture was the most common pattern (eight patients) followed by the associated both-column fracture in six and T-type, isolated anterior column fracture, and anterior column and posterior hemi-transverse fractures seen in three patients each. Iliac blade (high anterior column) fracture was seen in 14 cases and one patient had associated sacral type II fracture. Road traffic accidents accounted for 61% of the injuries and injury severity score (ISS) of >15 (polytrauma) was seen in more than 50% of the cases (associated with other organ injuries). The radiological outcome was anatomical in 52% of the cases, imperfect in 39%, and poor in 9%. The functional outcomes were good to excellent in 74% (HHS) and 79% (NMAPS) of the cases. The association and correlation between them were nonsignificant (p-value: >0.5). Two patients developed a superficial infection and three had iatrogenic obturator nerve palsy. One patient had a direct inguinal hernia, one had grade 3 bedsores, and two patients developed grade 2 arthritic changes during the follow-up. No case of vessel injury was encountered.  Conclusion  Adoption of the MSA for the treatment of acetabular fractures leads to a good-to-excellent anatomical reduction in most cases while providing direct visualization of the quadrilateral plate and posterior column. The learning curve is smaller for less-experienced surgeons in terms of complications and results. We recommend this technique as a viable alternative to the IL approach for anterior acetabular fixation.

Clinico-radiological Outcomes of Using Modified Stoppa Approach for Treating Acetabular Fractures: An Institutional Review