Efficacy of Molding Helmet Therapy following Suturectomy for Craniosynostosis: A Single-center, Retrospective Analysis in Japan.

Craniosynostosis limits normal cranial growth, significantly affecting the growth and development of children. This increase in intracranial pressure results in significant cosmetic and functional losses. This study investigated the efficacy of combining molding helmets with suturectomy for craniosynostosis. Patients who underwent suturectomy and molding helmet therapy for craniosynostosis at a single institution between 2017 and 2024 were included. Changes in cephalic index (CI) and cranial vault asymmetry index (CVAI) were analyzed. A total of 14 patients (12 males, 2 females) were included, with a median age of 4.5 months (2-6 mo). The affected sutures were as follows: sagittal (n=8), bilateral coronal (n=4), unilateral coronal (n=1), and lambdoid (n=1) sutures. The median duration of postoperative molding helmet therapy was 44.5 weeks. For the sagittal suture group, the median preoperative CI, median postoperative CI, and rate of change were 72.0 (68.3-85.8), 77.0 (72.1-86.4), and 0.0646, respectively. For the bilateral coronal suture group, measurements for the same parameters were 104.0 (99.3-110.0), 92.5 (89.1-94.5), and 0.1114, respectively. For the unilateral coronal group, the measured parameters were 89.0 (87.7-91.2), 84.0 (81.2-87.1), and 0.059, respectively. Although all suture types showed improvement in cranial shape, with sagittal synostosis showing the most significant change, our findings did not support the added benefit of molding helmet therapy. Overall, the study suggests that suturectomy is a crucial first step in craniosynostosis treatment, leading to improvements in cranial morphology and growth.