There are multiple ways to place cheek implants in the face; one of them is to create a small recipient pocket, in which the implant is positioned, and the other is to actually secure the implant with a small screw or suture. Regardless, when done correctly, mild trauma should not cause displacement of the implant. However, if one does experience trauma around the area where an implant was recently placed, it is always a good idea to have the surgeon evaluate things because there is a possibility that the implant can shift. One would also expect that it could increase the duration of swelling as well.