* This prospective, randomized parallel study seeks to compare the efficacy of ESC with or without the use of lateral osteotomies in regard to cranial expansion and aesthetic outcomes for children treated with isolated, non-syndromic sagittal craniosynostosis.
* Both arms of the study will undergo standard care throughout their participation which includes preoperative \& postoperative measurements of cephalic index using the STARscanner© (Orthomerica products Inc.), preoperative \& postoperative photographs, post-operative helmeting, and standard post-operative visits.
* Additional research-related activities include chart review. Primary outcomes include degree of cranial expansion at 1 year post-operatively.
* Secondary outcomes include aesthetic appearance at 1 year post-operatively (using a 5-point Likert scale) and a multitude of intraoperative clinical variables including estimated blood loss, instances of transfusion, instances of dural tear, instances of 30-day readmission, and instances of needing further surgery.