Evaluation of Nasolabial Soft Tissue Parameters After Subspinal Minimally Invasive SARME Using 3dMD Stereophotogrammetry

Abstract

Objective: The aim of this study was to compare the effects of minimally invasive subspinal SARME (MISARME) and conventional SARME (CSARME) on nasolabial and facial soft tissue parameters using 3D stereophotogrammetry.

Methods: This prospective, randomized, double-blind study included 35 patients diagnosed with maxillary transverse deficiency. MISARME was performed in the study group, while CSARME was applied in the control group. Soft tissue changes were evaluated preoperatively and postoperatively at different time intervals using 3D stereophotogrammetry.

Results: The MISARME technique was found to cause more limited changes in nasolabial aesthetics, providing more stable outcomes particularly in the preservation of upper lip length. No statistically significant differences were observed between the groups regarding the nasolabial angle, nasal tip angle, columella height, and supratip break angle.

Conclusion: The minimally invasive subspinal approach is a reliable alternative that reduces surgical morbidity, preserves esthetic outcomes, and improves patient comfort. MISARME is recommended for adult patients with maxillary transverse deficiency who have high esthetic expectations.