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Precision in Midfacial Volumization Using Ultrasound-Assisted Cannula Injections
Leonie Schelke1,2, Peter J Velthuis1, Natalia Lowry3
1From the Department of Dermatology, Erasmus Medical Center.
Plastic and Reconstructive Surgery
|February 2, 2023
Summary
Ultrasound-guided cannula injections precisely deliver soft-tissue fillers to the midface, improving volume loss and aesthetic outcomes without adverse events. This technique enhances safety and efficacy in facial volumization procedures.
Area of Science:
- Aesthetic medicine
- Dermatology
- Plastic surgery
Background:
- Cannula injections for soft-tissue fillers are often perceived as less precise than needle injections.
- Midfacial needle injections carry a higher risk of intraarterial product placement.
- There is a need for precise and safe methods for midfacial volumization.
Purpose of the Study:
- To demonstrate the precision, safety, and effectiveness of ultrasound-assisted cannula injections in the midface.
- To evaluate the ability of real-time ultrasound guidance to improve accuracy in filler placement.
- To assess the aesthetic outcomes and safety profile of this technique.
Main Methods:
- Midfacial injections were performed using 22-G cannulas in 188 midfaces of 94 healthy volunteers under ultrasound-assisted guidance.
- Assessments included precision of product placement, incidence of adverse events, and patient/physician-rated aesthetic outcomes.
- The study involved 86 women with an average age of 53.05 years.
Main Results:
- In 100% of cases, filler was accurately placed in the desired deep midfacial fat compartment without migration.
- A statistically significant improvement in midfacial volume loss was observed (P < 0.001).
- No adverse events were reported during the follow-up period, and aesthetic outcomes were rated as 'very much improved'.
Conclusions:
- Real-time ultrasound imaging provides crucial visual feedback for precise cannula advancement and injection in the midface.
- Ultrasound-assisted cannula injections offer a safer alternative for midfacial volumization compared to traditional needle techniques.
- The study encourages wider adoption of cannulas for midfacial volumization due to demonstrated precision and safety.
