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The premaxillary space: a location for filler injection?
Ulrike Pilsl1, Walter Rosmarin, Friedrich Anderhuber
1Institute of Anatomy, Medical University of Graz, Graz, Austria.
Summary
The premaxillary fat pad is in a semi-open compartment, not fully closed. Injecting substances into this anatomical space can improve the nasolabial groove appearance.
Area of Science:
- Anatomy
- Facial anatomy
- Injectable aesthetics
Background:
- The anterior cheek region contains a four-layer fat structure.
- The premaxillary fat is the deepest layer within this structure.
Purpose of the Study:
- To investigate if the premaxillary fat exists within a closed compartment.
- To assess the facial aesthetic effects of injecting substances into the premaxillary fat.
Main Methods:
- Injected 0.5-0.8 mL of filler or arterial mass into the premaxillary fat.
- Performed gross dissections, horizontal and sagittal sections.
- Utilized three-dimensional reconstructions with computed tomography.
Main Results:
- The premaxillary fat is situated in a semi-open space, termed the premaxillary space.
- This space is bordered primarily by bone and muscle.
- Injected substances dispersed into surrounding lateral and superficial tissues.
Conclusions:
- Injecting substances into the premaxillary space offers subtle enhancements to the nasolabial groove.
- Understanding the compartmentalization of premaxillary fat is crucial for aesthetic procedures.
