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Published on: March 15, 2019
Liposuction and Skin Tightening by Plastic Internal Low-angular Retraction Technique to Direct Skin Retraction with
Julián Hernández1, Natalia Ruiz2, Brian Ramírez3,4,5
1From the Colombian Society of Plastic, Aesthetic, Maxillofacial, and Hand Surgery (SCCP), ARTI Clinic, Cali, Colombia.
Plastic and Reconstructive Surgery. Global Open
|July 15, 2026
Summary
The new plastic internal low-angular retraction (PILAR) technique for liposuction offers improved efficiency and safety over conventional radiofrequency-assisted methods. This innovative approach leads to reduced energy use and fewer complications, enhancing patient satisfaction.
Area of Science:
- Plastic Surgery
- Dermatology
- Aesthetic Medicine
Background:
- Liposuction is a common aesthetic procedure, but it has limitations in addressing skin laxity.
- Radiofrequency (RF) technologies aim to improve dermal contraction post-liposuction, but their effectiveness is inconsistent.
- The plastic internal low-angular retraction (PILAR) technique is a novel approach to enhance liposuction outcomes.
Purpose of the Study:
- To introduce and describe the plastic internal low-angular retraction (PILAR) technique.
- To evaluate the clinical outcomes of the PILAR technique.
- To compare the PILAR technique with conventional RF-assisted liposuction.
Main Methods:
- A prospective observational cohort study included 100 patients undergoing liposuction.
- Patients were divided into two groups: conventional RF-assisted liposuction (n=36) and the PILAR technique (n=64).
- Outcomes measured included energy delivery, device use time, complications, and patient satisfaction via the BODY-Q scale.
Main Results:
- The PILAR technique group used significantly less energy (44,195 J vs. 84,939 J; P < 0.001).
- Weight reduction was comparable between the two groups.
- Baseline characteristics were similar across both groups.
Conclusions:
- The PILAR technique demonstrated improved efficiency, reduced complication rates, and high patient satisfaction.
- Comparable body contouring outcomes were achieved with the PILAR technique.
- Targeted subdermal RF delivery may enhance skin retraction and procedural safety, warranting further research.
