Various breast implant type are available after taking the three design variables into consideration— shape, shell characteristics, and filling material— (That are of various types). Implants designs are available in two basic groups of implants that are commonly used today, i.e., round or anatomically shaped.
Round breast Implants
All-round implants have a horizontal and vertical dimension that is symmetrical, but it differs in the projection.
- Most manufacturers offer round implants with four different projections a low, mid, high and very high projection for a given volume.
- For each given volume, as the projection of the implant increases, the base width of the device decreases.
- For instance, a patient with a tight skin envelope a moderate profile implant isa better option because it will fit beneath the skin envelope without crowding the space, creating a more comfortable relationship between the implant and the soft tissue and a more aesthetic and natural result. The PT will not be able to tolerate a high projection or high profile implant without creating tension at the apex of the device, results in surrounded out of the periphery implant makes it more prominent in terms of a rounded contour.
- Conversely, with a patient having loose laxity of the skin envelope, the better choice would be a high profile implant because it would more evenly fill out the loose and redundant skin envelope.
Beyond the issues related to projection, what the implant is filled with can dramatically affect its performance. Because of their relatively low level of cohesively, saline-filled implants must be filled to a greater degree than silicone gel implants to perform safely;
One disadvantage of this overfill strategy, is the more rounded contour of the overfilled round device. In thinner patients, this rounded contour can distort the breast, creating an artificial, augmented appearance.
Filling the round implant with silicone gel is more easily tolerated by the round implant shell. Here an under fill strategy can be used because the wrinkles that form are much softer and place less stress on the implant shell. The wrinkles are also less likely to become visible through the skin envelope. This, together with the overall softer feel of silicone gel-filled implants, makes them a preferred choice among many surgeons.
Anatomically shaped breast Implants
The anatomically shaped implant has theoretical advantage in the context of creating an attractive breast contour. But if they rotate, then breast shape gets altered, Over the years, several different anatomic designs for both silicone and saline has been introduced.
Textured anatomically shaped saline implants of many different profiles developed for both augmentation and reconstruction. It was thought to be better suited for reconstruction because it could provide better upper pole filler for the breast after the mastectomy.
The anatomically shaped cohesive silicone gel implant combined with a variable textured are available for augmentation/implantation and reconstruction.
The cohesive gel-filled anatomically shaped implant holds its shape when placed upright, whereas the saline device collapses in the upper pole, leading to the possible formation of visible or palpable wrinkles.
Manufacturers have developed a series of combination devices in an attempt to combine the advantage of saline volume adjust ability with the soft feel of silicone,
Generally, the outer lumen is developed a silicone gel filling material AND inner lumen is filled with saline. The valve which passes through the outer gel component makes the access of the inner saline portion. This concept has also been explored in patients with volume adjust ability with the final desired size by adding saline as needed as post operatively, then eventually removing the remote port.
Although its use has limitations to a certain extent in daily aesthetic practice