Patient Controlled Tissue Expansion for Breast Reconstruction

This is a pivotal, prospective, multi-center randomized, controlled, open-label clinical study designed to compare the performance and safety of the AirXpander Tissue Expander System to currently cleared saline tissue expanders. Subject who meet the inclusion and agree to participate in the study will be enrolled and randomized to either the investigational arm (AirXpander Tissue Expander) or the control arm (standard saline tissue expander) using a 2:1 (AirXpander to saline) permuted block randomization stratified by investigational center and procedure (unilateral or bilateral). If the subject is having a bilateral procedure, the same type of expander will be implanted in each side. Subjects in both arms will be followed in the same manner until the explantation of the tissue expander(s) and exchange for permanent implant(s).