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Introduction: In the surgical treatment of pelvic ring injuries (PRIs), there is an increasing adoption of minimally invasive techniques to improve surgical outcomes. Since the introduction of endoscopic-assisted osteosynthesis for PRIs in 2019, various surgical challenges have been identified. To improve surgical and clinical outcomes, we modified the existing procedures and aimed to present the surgical outcomes of patients with pelvic fractures who underwent endoscopic-assisted surgery. Materials and methods: We conducted a retrospective analysis of patients with PRIs treated with endoscopic technique over a 15-month period. All patients were diagnosed with diastatic symphysis, superior pubic ramus fracture, or both. The postoperative radiological and functional outcomes were assessed and reported. Details of the preoperative planning and surgical procedures were reviewed. Results: Thirteen patients with PRIs were enrolled: 10 patients for diastatic pubic symphysis (three of whom received superior ramus screw fixation) and three for isolated superior pubic ramus fractures. All surgeries were completed with endoscopic assistance, without the need for conversion to open surgery. The average surgical duration was 204.1 min, the endoscopy time was 103.7 min, and the volume of blood loss was 185.0 ml. Excellent reduction was achieved in all patients according to the Matta/Tornetta criteria and in nine patients according to the Lefaivre criteria. The mean Majeed scores were 71 and 82 and the mean Merle d’Aubigné scores 11 and 15 at 3 and 6 months postoperatively, respectively. Conclusion: Endoscopic-assisted pelvic surgery is a safe and effective treatment alternative for PRIs, particularly when focusing on the anterior pelvic ring. The advantages of this approach, including small incisions and preservation of abdominal and pelvic floor muscle integrity, contribute to improved patient recovery. Future research should focus on comparative studies of this technique with other minimally invasive techniques and open surgery. [ABSTRACT FROM AUTHOR]

Purpose: Osteosynthesis for acetabular fractures with ipsilateral sacroiliac joint (SIJ) injuries remains challenging for orthopedic surgeons, despite the evolution of surgical approaches, such as the pararectus approach, and treatment sequences. The study aimed to describe the details of the treatment of acetabular fracture with ipsilateral SIJ injury by the pararectus approach and to report its surgical outcomes. Methods: We retrospectively assessed patients with acetabular fractures and ipsilateral SIJ injuries undergoing osteosynthesis by the pararectus approach over a three-year period. Evaluation parameters of the quality of reduction of both acetabulum and pelvis injuries were, among others, Matta's criteria, Lefaivre's criteria, inlet/outlet ratios, and maximal gap measured on computed tomography (CT) scans. Results: Ten patients (seven men and three women) were enrolled. Pelvic ring injuries classified as AO B2.3 and acetabular fractures involving two columns were the most common fractures, accounting for 70% and 60%, respectively. Radiological evaluation for pelvic ring injury revealed three excellent and seven good results according to Matta's criteria, as well as five excellent, three good, and one fair results according to Lefaivre's criteria. Inlet and outlet ratios were between 0.84–1.06 and 0.93–1.60, respectively. The distance of the sacroiliac joints significantly improved postoperatively in both axial and coronal views (P = 0.002). Further, the maximal articular gap and step-off of acetabular fractures on axial, coronal, and sagittal view CT scans showed statistically significant improvements after osteosynthesis. Conclusion: Simultaneous reduction and fixation of acetabular fractures with ipsilateral SIJ injuries using the pararectus approach achieved satisfactory radiological outcomes. Level of evidence: IV. Trial registration: Retrospectively registered. [ABSTRACT FROM AUTHOR]