# Reviewing the Ultrasound Anatomy of the Gluteal Region and the Mapping of Fillers

## TL;DR

This study uses ultrasound to map the anatomy of the gluteal region and track filler distribution in aesthetic procedures.

## Contribution

The paper introduces a systematic ultrasound-based method for analyzing gluteal filler distribution and anatomy.

## Key findings

- Ultrasound is effective for visualizing and characterizing exogenous fillers in the gluteal region.
- A systematic ultrasound mapping method was developed for the gluteal region.
- The study highlights the role of dermatological ultrasonography in improving safety in aesthetic procedures.

## Abstract

The demand for buttock contouring and volumization has increased in recent decades, driven by growing interest in aesthetic procedures. However, a noticeable gap exists in the literature regarding the ultrasonographic anatomy of the gluteal region and the mapping of exogenous fillers. Despite the rising popularity of gluteal augmentation procedures, comprehensive studies focusing on the detailed visualization and characterization of these procedures using dermatological ultrasonography are scarce. This study aims to address this gap by thoroughly describing the ultrasonographic anatomy of the gluteal region and mapping the distribution of various fillers utilized.

This study aims to describe the ultrasonographic anatomy of the gluteal region and map the distribution of exogenous fillers.

This descriptive study analyzed the ultrasonographic anatomy and filler mapping based on a cohort of 110 patients treated at a clinic in São Paulo, Brazil, from June 2023 to January 2025. Inclusion criteria were patients treated with a single or more types of filler and with or without complications. Examinations were performed using GE LOGIQ E ultrasound devices with probes ranging from 2 to 8 mHz, 3–15 mHz, and 3–22 mHz. Patients were positioned in the prone position, and the gluteal region was divided into four quadrants for systematic analysis, including the lumbar region, posterior thigh, trochanteric depression, and inguinal regions.

Ultrasound proved to be a non‐invasive, dynamic, sensitive, and accurate imaging technique for identifying the ultrasonographic characteristics of the main exogenous fillers in the gluteal region.

The increasing demand for gluteal filling procedures underscores the importance of dermatological ultrasonography for differentiating and characterizing filler materials and enabling the early diagnosis of complications. The article proposes a systematic method for mapping the gluteal region using ultrasound; it advances the current knowledge of gluteal filler procedures by providing a detailed understanding of the ultrasonographic anatomy of the gluteal region. It highlights the role of dermatological ultrasonography in elucidating filler distribution and characteristics, paving the way for improved safety protocols and clinical practices in aesthetic procedures.