SMAS
Also written as: SMAS — Superficial Musculoaponeurotic System
Superficial Musculoaponeurotic System - facial tissue layer manipulated during facelift surgery.
Full Definition
SMAS (Superficial Musculoaponeurotic System) refers to a layer of tissue beneath the skin of the face and neck that includes muscle fibers, fibrous tissue, and fat. This anatomical structure is crucial in facelift surgery because it provides the foundation for longer-lasting facial rejuvenation results. During a SMAS facelift, surgeons lift and tighten this deeper layer rather than just pulling the skin, which creates more natural-looking results and better longevity. The SMAS technique addresses the underlying causes of facial aging by repositioning the deeper structures that support facial contours. Understanding SMAS anatomy is essential for achieving optimal outcomes in facial plastic surgery.
Usage
Usage note: Critical anatomical concept in facial plastic surgery; spell out on first use.
In Context
- "The SMAS layer was carefully dissected and repositioned during the facelift procedure." — Operative note
- "SMAS manipulation provides superior longevity compared to skin-only facelifts." — Surgical technique article