Many subpectoral pockets are created in a dual-plane fashion, meaning that a portion of the implant lies under the muscle, and a portion of the implant is covered only by subcutaneous tissue. The muscle provides additional coverage over the upper and medial implant. But the lateral and inferior portions of the implant are covered only breast and/or subcutaneous tissue. It is for that reason that rippling is more likely in the inferior and lateral parts of the breast. And for thinner women, who have minimal breast tissue and little subcutaneous fat, rippling will be more likely because the tissue covering is thin.
The weight loss you describe may certainly be a contributing factor. The soft tissues of the breast became thinner with your weight loss and made the ripples more evident. You are probably helped by the subpectoral placement of your implants, and the rippling would likely be worse if you had subglandular implants. In my opinion, saline implants should never be placed in the subglandular space, for that reason.
Rippling is a risk of breast augmentation surgery, regardless of the implant or pocket used. And rippling with saline implants is almost inherent. The characteristics of saline as a fill material are such that almost every woman with saline implants experiences some rippling and/or palpability of the implant somewhere. I’m not saying that this is always problematic, bothersome, or noticeable, but just a reality. (In a sitting position, if you examine the inferior pole of the breast just in front of the inframammary fold, in a woman with saline implants, you can almost always feel some ripples in the implant shell.) There is no guarantee that you won’t have some rippling with a silicone implant, but the characteristics of the gel filler make rippling less common.
As mentioned by other physicians -- ADM is an option to provide additional coverage over the implant, but does add significant cost to the surgery. Discuss this option with your surgeon to understand if this is necessary and how much it will help you. And, crease/fold failure will only be more likely to occur if the implants are improperly sized. If the implants are too big for the pocket the implant shell is forced to fold, and this fold along the margin of the implant eventually undergoes a stress failure. Once a saline implant shell fails, the implant begins to leak, and the size of the breast begins to shrink quickly enough that the failure is usually recognized fairly quickly.
Best wishes. Kenneth Dembny