Optimizing Fat Grafting Using a Hydraulic System Technique for Fat Processing: A Time and Cost Analysis

• Published in: Archives of plastic surgery Vol. 49; no. 2; pp. 266 - 274
• Main Authors: Verdura, Vincenzo, Guastafierro, Antonio, Di Pace, Bruno, Faenza, Mario, Nicoletti, Giovanni Francesco, Rubino, Corrado
• Format: Journal Article
• Language: English
• Published: 333 Seventh Avenue, 18th Floor, New York, NY 10001, USA Thieme Medical Publishers, Inc 01-03-2022
• Subjects: fat grafting; fat washing; hydraulic system; lipofilling; regenerative surgery; Research/Experimental; fat washing; fat grafting; hydraulic system; lipofilling; regenerative surgery
• ISSN: 2234-6163; 2234-6171
• DOI: 10.1055/s-0042-1744361

Abstract
Background
 Many authors have researched ways to optimize fat grafting by looking for a technique that offers safe and long-term fat survival rate. To date, there is no standardized protocol. We designed a “hydraulic system technique” optimizing the relationship among the quantity of injected fat, operative time, and material cost to establish fat volume cutoffs for a single procedure.
Methods
 Thirty-six patients underwent fat grafting surgery and were organized into three groups according to material used: standard, “1-track,” and “2-tracks” systems. The amount of harvested and grafted fat as well as material used for each procedure was collected. Operating times were recorded and statistical analysis was performed to establish the relationship with the amount of treated fat.
Results
 In 15 cases the standard system was used (mean treated fat 72 [30–100] mL, mean cost 4.23 ± 0.27 euros), in 11 cases the “1-track” system (mean treated fat 183.3 [120–280] mL, mean cost 7.63 ± 0.6 euros), and in 10 cases the “2-tracks” one (mean treated fat 311[220–550] mL, mean cost 12.47 ± 1 euros). The mean time difference between the standard system and the “1-track” system is statistically significant starting from three fat syringes (90 mL) in 17.66 versus 6.87 minutes. The difference between the “1-track” system and “2-tracks” system becomes statistically significant from 240 mL of fat in 15 minutes (“1-track”) versus 9.3 minutes for the “2-tracks” system.
Conclusion
 Data analysis would indicate the use of the standard system, “1-track,” and “2-tracks” to treat an amount of fat < 90 mL of fat, 90 ÷ 240 mL of fat, and ≥ 240 mL of fat, respectively.