Overview
Facial filler contouring is usually planned around product choice and adding volume to one area at a time. The author proposes a design-first framework built on anatomy specific to Northeast Asian faces. It is illustrated with one two-stage clinical case and 15 supplementary cases.
Findings
- The framework puts whole-face contour continuity and anatomically appropriate pathways ahead of isolated volume correction.
- A "Reference Facial Form" serves as a qualitative design reference, translated into geometric principles and then into predefined vectors.
- Vectors are planned cannula paths with set entry points, directions, withdrawal paths and deep anatomical planes.
- Planning is guided by entry points, vector direction and relative filler distribution, rather than fixed injection volumes.
- One two-stage case: first an off-label diluted polycaprolactone-based mixture for deep structural support, then hyaluronic acid filler for contour refinement after stabilization.
- Early images showed the planned vectors matched early contour change, but were not suitable for establishing efficacy or durability.
- Follow-up was not long enough to establish long-term safety.
- 15 de-identified supplementary cases showed repeated vector and entry-point patterns; they were not analyzed as an outcome group.
- Efficacy, reproducibility between injectors, generalizability and long-term safety need larger studies.
What it means for a patient
- This paper is about injectable fillers, not face lift surgery.
- It describes a planning method, not a proven treatment result.
- The first stage used a polycaprolactone mixture off-label, meaning outside its approved use.
- Limits: one case, short follow-up, no measured outcomes, and the author states the framework is unproven.
Why this paper matters
It offers a planning language for filler contouring based on anatomy and cannula paths. The author presents it for clinical planning and education, not as evidence of effect.
Terms
- Filler contouring: shaping the face with injected filler material.
- Cannula: a thin, blunt-tipped tube used to place filler.
- Vector: here, a planned path for the cannula, with a set entry point and direction.
- Polycaprolactone: a dissolvable material used in some injectable products; here diluted and mixed.
- Hyaluronic acid filler: a gel filler made from a sugar molecule found naturally in skin.
- Off-label: use of a product in a way its approval does not cover.
- Deep plane: here, a deeper tissue layer where filler is placed for structural support.