[Permanent expanders in esthetic, corrective and reconstructive surgery of the breast].

Since 1986 we used the permanent expandable implant (PEI) as the first choice of prosthesis in breast surgery. The possibilities offered by multiple over-expansions and deflations have been explored: 224 PEI were utilized in 162 patients for aesthetic (38 with bilateral hypoplasia), corrective (20 with asymmetry, tubular breasts or Poland's Syndrome) and reconstructive breast surgery (104 patients for immediate and delayed reconstruction following radical, modified radical, partial and subcutaneous mastectomy). All implants were positioned submuscularly; a latissimus dorsi flap was transposed when pectoralis major was absent or damaged. Either the Becker or the Gibney implant was used. All PEI were immediately or progressively overinflated by 25-80% and then deflated to the planned volume. Twenty-two patients developing capsular contracture were treated by overinflations and deflations with subjective and objective improvement. Many of augmentation mammaplasty patients refused implant deflation to the planned preoperative volume. The over-expansion/deflation process proved to be effective in obtaining ptosis, in maintaining permanent volume symmetry and in keeping the base of tubular breast unfolded.