Trigonocephaly is one of the most common types of craniosynostosis leading to triangular-shaped head and neurodevelopmental complications. Several surgical techniques have been suggested for its correction, but the newly suggested technique seems to have optimal outcomes compared with the traditional methods. Thus, the authors retrospectively evaluated the outcomes of the simplified horse-shoe technique with previous procedures performed on 169 children severe trigonocephaly during 1996 to 2015 at Mofid Hospital, Tehran, Iran. Demographic data of the patients and the surgical outcomes and complications and the need for reoperation were recorded and scored using the Whitaker system. The male-to-female ratio was 2.75:1. The mean ± standard deviation age of all the patients at the time of surgery was 7.09 ± 7.5, 9.95 ± 7.71, 10.53 ± 6.57, and 10.59 ± 7.96 months for the traditional, horse-shoe, and simplified horse-shoe techniques, respectively. The total reoperation rate was 6.5% (4.7% in the traditional technique, 1.2% in the horse-shoe, and 0.6% in the simplified horse-shoe technique) (P < 0.001). The main reason for reoperation was hardware removal (in the traditional technique). Whitaker scoring showed no patients of class IV in any of the groups and no patients of class III and IV in simplified horse-shoe technique, but the difference in the Whitaker scores among the 3 groups was not statistically significant (P = 1.176). The new surgical technique is easier and simpler with fewer complications than the traditional technique and is suggested to be recommended for surgical treatment in children with trigonocephaly, especially in younger children.