Whoever said beauty is only skin deep hasn’t looked below to see what Sientra Inc. has made available there recently. The medical aesthetics company now boasts the only tissue expander cleared in the U.S. for exposure to magnetic resonance imaging, an important screening tool for breast reconstruction patients. Sientra’s CTO Denise Dajles told BioWorld the newly cleared Allox2 Pro Tissue Expander builds on the original expander also cleared by the FDA. “No other expander in the market has an MRI compatibility indication because they are based on a metal, i.e., metallic ports and big magnets in them,” Dajles explained.

The U.S. FDA held a two-day advisory hearing in the last week of October 2022 to address some lingering regulatory questions, including the question of whether therapeutic nail prostheses should be a class I device. The potentially more dramatic shift, however, would be the application of a class III risk designation to tissue expanders used in breast surgery.