It is the goal of this study to highlight the minimally invasive sacroiliac screw fixation for posterior pelvic instability, as well as to examine its accuracy; safety; efficacy; and early outcomes; and to explain the possible pitfalls and problems. There were 20 patients with an unstable posterior pelvic ring at Banha University Hospital who were given minimally invasive sacroiliac screws and would be monitored for 12 months. The mean age of the analysed cases was 49.20 ( 11.25SD) with a range of (25.0 – 65.0), and two of the studied cases were less than 30 years of age. 14 (seventy percent) of the cases examined included men, whereas 6 (thirty percent) were women. There were 6 (30% of the cases examined) that were deemed unsatisfactory, 14 (70%) that were found to be satisfactory, 2 (10%) that were deemed poor (55), 4 (20%) that were deemed fair (between 55 and 69), and 7(35%) that were deemed satisfactory (between 70 and 84%) and 7(35%) that were deemed excellent (above 85%). Majeed's mean was 74.30 ( 14.68 SD). More over a third of the unsatisfactory students had a diagnosis of RTA or FPH. Six of the Satisfactory students were RTAs, and eight were FFHs (40 percent). Statistics showed that there was a substantial difference in trauma mode across the groups investigated. A posterior pelvic ring fracture may be successfully treated with either minimally invasive plate and screw internal fixation or sacroiliac joint screw fixation. Improve surgical outcomes and minimise complications will be achieved by increasing the number of participants in future trials, extending the follow-up period, and enlarging the population that will be studied.