There have been no scientific studies in my opinion to definitively prove that incision location affects sensation. However, many plastic surgeons postulate that sensory changes may be related to the size of the implant used. That is, the larger the implant the more likely sensation will change. This may be due to the stretching of the tissues in the pocket that needs to accommodate the larger implants, and therefore stretching the sensory nerves may affect the function of these nerves.