Capsular Contracture After Breast Augmentation: A Systematic Review and Meta-Analysis

Area of Science:

• Plastic Surgery
• Biomaterials Science
• Medical Device Engineering

Background:

• Capsular contracture is a common complication following breast augmentation.
• It involves fibrous capsule formation around the implant, leading to pain and distortion.
• Understanding factors influencing capsular contracture is crucial for improving patient outcomes.

Purpose of the Study:

• To meta-analyze implant and surgical characteristics affecting capsular contracture rates.
• To compare outcomes between smooth vs. textured implants.
• To evaluate subpectoral vs. prepectoral placement and saline vs. silicone implants.

Main Methods:

• Systematic review and meta-analysis of studies from PubMed MEDLINE, EMBASE, and Cochrane Library.
• Inclusion of 24 studies meeting specific criteria.
• Calculation of odds ratios (ORs) for capsular contracture based on implant surface, placement, and fill material.

Main Results:

• Textured implants significantly reduced capsular contracture compared to smooth implants (OR = 2.80).
• Subpectoral placement significantly lowered contracture rates versus prepectoral placement (OR = 0.35).
• No significant difference in contracture rates between saline and silicone implants (OR = 0.39).

Conclusions:

• Textured-surface implants and subpectoral placement are associated with lower capsular contracture rates.
• Implant material (saline vs. silicone) does not significantly impact contracture rates.
• Further prospective studies are needed to confirm these findings and explore other factors.