Ultrasonographic Quantification of Reduction in Subcutaneous Fat Thickness Following Large-Volume Liposuction

Area of Science:

• Plastic Surgery
• Body Contouring
• Medical Imaging

Background:

• Large-volume liposuction is common for abdominal contouring.
• Objective quantification of fat reduction is limited.
• Ultrasonography (USG) is a practical, radiation-free assessment tool with under-reported postoperative utility.

Purpose of the Study:

• Quantify abdominal subcutaneous fat thickness changes after large-volume liposuction using USG.
• Evaluate changes in waist circumference, complications, and patient satisfaction.

Main Methods:

• Prospective observational study of 50 patients undergoing large-volume abdominal liposuction (>5L).
• Ultrasonographic measurement of subcutaneous fat thickness at four abdominal sites pre-operatively and at 1 week, 1 month, and 6 months post-operatively.
• Waist circumference, complications, and patient satisfaction were assessed.

Main Results:

• Significant fat thickness reduction (36%-44%) at 6 months post-procedure (p < 0.001).
• Waist circumference decreased by ~10%, but correlations with localized fat reduction were weak.
• High patient satisfaction (96%) and transient, resolving postoperative seromas/hematomas (84% at 1 week).

Conclusions:

• Large-volume liposuction yields substantial, durable fat reduction and waist circumference decrease.
• USG is a reliable, cost-effective tool for objective, site-specific postoperative assessment, superior to waist circumference for localized changes.
• Further research with extended follow-up and comparative imaging can refine USG's role in body contouring evaluation.