FrankTalk.org

Every frequent implanter has seen instances where an implant is removed for mechanical reasons and the corporal measurements following removal suggest the replacement cylinders should be 2–3 cm longer.19 Some prosthetic urologists have seen this change with Peyronie's disease after IPP implantation. It has been shown that after placing an IPP in a patient with Peyronie's disease, 30° of curvature or less will improve to a completely straight penis with subsequent inflation over 8–12 months.20 Hourglass, or cicatrix, deformities will similarly change into a symmetrical width penis with postoperative inflation and usage. Wilson et al. have also documented that the shortened, fibrotic penis resulting from priapism or previous removal of an implant for infection will stretch with daily inflation after placing a downsized prosthesis.21 We postulate that if diseased corporal fibrotic scar can expand, it stands to reason that healthier unscarred tissue should expand.
Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5000799/