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Smooth Implant Stability in Inframammary Approach Augmentation: The Modified Bi-Muscular Flap Technique VS.
Zenan Xia1, Jiangmiao Xie1, Runqing Su2
1Department of Plastic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan 1#, Dongcheng District, Beijing 100730, P. R. China.
Plastic and Reconstructive Surgery
|January 22, 2026
Summary
The modified bi-muscular flap (BMF) technique offers improved stability for smooth breast implants during augmentation mammaplasty. This innovative approach may reduce implant malposition compared to traditional methods.
Area of Science:
- Plastic Surgery
- Biomedical Engineering
Background:
- Smooth implant use is increasing in augmentation mammaplasty.
- Implant stability is a significant concern, with current methods like inframammary fold (IMF) fixation showing inconsistent reliability.
- Inadequate inferior or lateral support structures are identified as primary causes of smooth implant malposition.
Purpose of the Study:
- To introduce and evaluate a novel surgical technique, the modified bi-muscular flap (BMF), for enhancing smooth implant stability.
- To address the limitations of existing methods in preventing inferior implant displacement.
Main Methods:
- The modified bi-muscular flap (BMF) technique involves an L-shaped muscle release of the pectoralis major.
- This release preserves lateral long-head origins, creating a robust inferior support structure for the implant.
- The technique is designed for use with the inframammary fold (IMF) incision.
Main Results:
- Preliminary outcomes suggest the modified BMF technique reduces smooth implant malposition.
- The new technique shows potential for improved long-term implant stability compared to the dual-plane technique with fixation suture.
Conclusions:
- The modified bi-muscular flap (BMF) technique presents a promising alternative for augmentation mammaplasty.
- This method may effectively improve the stability of smooth implants and minimize malposition.
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