What you are seeking is augmentation of the anterior malar region that also extends onto the lateral orbital rim and into the submalar region. Ideally a custom made implant is the best way to approach this unique area of midface augmentation. But certain styles of combined malar-submalar...
Numbness is a possible complication of cheek implant surgery. However, sometimes it resolves as the swelling resolves. Discuss your symptoms with your surgeon when you are seen in a post op visit.