Abstract Objective To assess the maxillofacial growth of patients with isolated cleft palate following the Sommerlad-Furlow modified technique and compare it with the effect of the Sommerlad technique. Study design A Retrospective Cohort Study. Methods A total of 90 participants, 60 patients with non-syndromic isolated soft and hard cleft palate (ISHCP) underwent primary palatoplasty without relaxing incision (30 patients received the Sommerlad-Furlow modified (S-F) technique and 30 received Sommerlad (S) technique). While the other 30 were healthy noncleft participants with skeletal class I pattern (C group). All participants had lateral cephalometric radiographs at least 5 years old age. All the study variables were measured by using stable landmarks, including 11 linear and 9 angular variants. Results The means age at collection of cephalograms were 6.03 ± 0.80 (5–7 yrs) in the S group, 5.96 ± 0.76 (5–7 yrs) in the S-F group, and 5.91 ± 0.87 (5–7 yrs) in the C group. Regarding cranial base, the results showed that there were no statistically significant differences between the three groups in S–N and S–N-Ba. The S group had a significantly shortest S-Ba than the S-F & C groups (P = 0.01), but there was no statistically significant difference between S-F and C groups (P = 0.80). Regarding skeletal maxillary growth, the S group had significantly shorter Co-A, S- PM and significantly less SNA angle than the C group (P =