Ergonomic implants are designed to combine features of round and anatomical implants by responding to body position: more rounded when lying down and adopting a more natural teardrop slope when standing.
The idea
Using a particular gel and shell behaviour, ergonomic implants aim to deliver a natural shape in the upright position without the rotation concerns of fixed anatomical implants, since they are typically round in outline.
Considerations
Ergonomic designs are a more recent option and appeal to patients wanting natural movement and slope. As with any newer technology, ask your surgeon about their experience with them and the evidence behind the marketing. Compare with round vs ergonomic.