Mandibular Septum Mapping Identifies Safe Zones for Lower Face Surgery

Facial rejuvenation surgery remains a cornerstone of aesthetic practice, with techniques ranging from superficial musculoaponeurotic system plication to extended deep-plane dissections [1, 2]. While patient satisfaction rates are generally high, the technical complexity of addressing age-related ptosis and volume loss requires a precise understanding of facial retaining ligaments and fat compartments [3, 4]. Among the most significant surgical risks is iatrogenic injury to the motor nerves, which can result in permanent mimetic deficits and profound psychosocial distress [5, 6]. Revision procedures further complicate these anatomical landmarks due to scarring and altered tissue planes from previous interventions [7]. To mitigate these risks, a recent anatomical study provides a detailed reassessment of the mandibular septum and its critical relationship to the marginal mandibular nerve, offering clinicians precise spatial data to guide safe dissection.