Complications of polyacrylamide hydrogel (PAAG) injection in facial augmentation.

Polyacrylamide hydrogel (PAAG) has been used as an injectable filler for soft tissue augmentation for more than a decade. In recent years, PAAG has been advocated as a safe soft tissue filler for facial augmentation. However, the complications associated with PAAG injection in facial augmentation have not been widely covered in the literature. We present two cases of severe complications associated with PAAG injection in facial augmentation, including bony erosion and facial ulcer. Further studies are required to support the safety of PAAG in facial injection. Copyright (c) 2009 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.