Midfacial Soft-Tissue Changes after Paranasal Augmentation with Porous Polyethylene

Area of Science:

• Plastic Surgery
• Craniofacial Surgery
• Biomaterials Science

Background:

• Paranasal deficiency can impact facial aesthetics and midface volume.
• Surgical augmentation aims to improve facial contours and proportions.
• Porous polyethylene is a biocompatible material used in craniofacial reconstruction.

Purpose of the Study:

• To evaluate the soft-tissue response to porous polyethylene implants in paranasal augmentation.
• To compare outcomes between paranasal augmentation with porous polyethylene and mandibular setback alone.
• To assess patient satisfaction and complications associated with porous polyethylene paranasal implants.

Main Methods:

• A comparative study involving 33 patients undergoing paranasal augmentation with porous polyethylene and mandibular setback, and 35 patients undergoing mandibular setback alone.
• Lateral cephalograms were used to measure soft-tissue changes in the paranasal area pre- and post-surgery (6 months).
• Patient satisfaction and complication rates were systematically analyzed.

Main Results:

• Paranasal augmentation with porous polyethylene resulted in an average soft-tissue increase of 2.42 ± 0.33 mm.
• The ratio of soft-tissue change to implant thickness was 80.7%.
• No significant soft-tissue changes were observed in the control group (mandibular setback alone).

Conclusions:

• Porous polyethylene paranasal augmentation is a predictable surgical technique.
• The procedure leads to increased midface volume and improved lateral profile.
• High patient satisfaction and minimal complications, including no implant-related issues, were reported.