Rashidifard C, et al. - A retrospective review was carried out to compare intraoperative “on end” fluoroscopy lag screw position to postoperative computer tomography. Researchers included a total of 116 individuals sustaining operative acetabular fractures with posterior wall components. They identified 244 lag screws: 51.6% in the P group, 25.4% in superoposterior, and 23.0% in the S group with excellent correlation noted in all groups. The results indicated that for posterior wall lag screw placement, intraoperative axial fluoroscopy correlates closely with postoperative CT allowing for reliable posterior wall lag screw placement in all regions around the acetabulum. While placing lag screws within 5 mm of the articular surface, especially within the posterior region, care should be taken.