Biomimetic optimization of air-silicone external breast prostheses: a parametric finite element study

Area of Science:

• Biomedical Engineering
• Materials Science
• Reconstructive Surgery

Background:

• Traditional breast prostheses often lack optimal comfort, symmetry, and dynamic mobility.
• Improving the biomechanical properties of post-mastectomy devices is crucial for patient well-being.

Purpose of the Study:

• To develop and optimize a novel air-silicone layered breast prosthesis.
• To enhance biomimetic fidelity, comfort, symmetry, and dynamic mobility for mastectomy patients.

Main Methods:

• Utilized 3D finite element modeling for prosthesis design optimization.
• Parameterized the air core's volume ratio (VR) to achieve biomimetic fidelity.
• Evaluated static and dynamic deformation characteristics.

Main Results:

• Identified optimal volume ratios (VRs) of 25% and 75% for the air core.
• Achieved minimized static deformation differences between the prosthesis and natural tissue.
• Demonstrated strong dynamic agreement with natural tissue during movement.

Conclusions:

• The novel air-silicone prosthesis offers improved biomimetic properties.
• A personalized, data-driven design approach effectively restores biomechanical symmetry.
• This optimized prosthesis presents a viable strategy for enhancing long-term comfort in post-mastectomy patients.