Abstract The number of women with breast implants is increasing. Radiologists must be familiar with the normal and abnormal findings of common implants.
While the use of implants is considered more of a cosmetic procedure, surgeons sometimes utilize it for medical purposes such as breast reconstruction.
Breast reconstruction, a procedure for restoring or rebuilding the breasts, is done on patients who have undergone a mastectomy removal of the breasts due to cancer. Implants may also be utilized to correct chest wall defects and other deformities.
Three main types of breast implants exist. Each is classified according to what material they are made of.
The first two are saline and silicone breast implants. The third, and least popular choice,are the so-called alternative composition implants. Alternative composition implants contain various miscellaneous fillers including polypropylene string, soy oil and other fillers. However, alternative composition implants are no longer manufactured and no longer available.
What Are They Made Of? Saline implants consist of sterile salt water wrapped in a shell of elastomer silicone. The salt water has a concentration of 0. This concentration is pretty much identical to the concentration found in our body making saline implants very compatible with living tissues.
This type of implant was first manufactured in as a prosthetic medical device. Saline implants were the most commonly used prosthesis for breast implant surgeries prior to the introduction of silicone implants.
It turned out there was no evidence of harmful effects and the restriction was lifted allowing silicone implants to regain their popularity.
Silicone implants consist of silicone gel that is also encased in an elastomer silicone shell. The ones currently available are third to fifth generation silicone implants.
The fifth generation implants are made of semi-solid gels. The development of these new generations of implants aims to prevent, or at least minimize, the leakage of filler material from the implant shell.
Technique The technique for placing saline implants is much simpler and less invasive compared to that of silicone implants. Once in place, the surgeon fills each implant with saline solution. Because empty implants are inserted, the required incisions are short and small and therefore results in minimal scarring.
In silicone implants, longer and bigger incisions are needed to insert the pre-filled implants with thick or semi-solid silicone gel. Costs Saline implants are significantly cheaper than silicone implants. The surgical technique for a saline implant surgery is a bit simpler so the fees for the surgeon and hospital facilities are lower.
They last and retain their shape for years but, at some point, they will rupture and have to be removed and replaced. When a saline implant ruptures, it empties its silicone shell and deflates. A person will know that it has ruptured thanks to a dramatic reduction in breast size.
The salt water gets absorbed by the body without causing any complications. On the other hand, it is much more difficult to detect a ruptured silicone implant because it does not deflate even though the silicone gel actually leaks from its shell.
Unlike salt water, the body does not absorb silicone gel. Instead, the gel migrates to the breast pocket where it causes painful capsular contracture.
Capsular contracture refers to the formation of scar tissue around the implant. The scar tissue is made up of thick collagen fibers that may compress and distort the implant, the breast or both of them.Apr 06, · Saline-filled breast implants contain a silicone outer shell filled with a sterile saltwater (saline) solution.
Some are pre-filled and others are filled during the implant operation. Saline. A silicone inflatable (saline-filled) breast prosthesis has a silicone shell made of polysiloxane(s), such as polydimethylsiloxane and polydiphenylsiloxane, that is inflated to the desired size with sterile isotonic saline before or after implantation.
Saline implants are filled after they’re implanted, so saline implants require a smaller incision than pre-filled silicone gel breast implants. Also, many saline implants can be adjusted after. Breast implants are increasingly common in general breast radiology practice.
Classification Location Breast implants may be placed behind the glandular tissue but in front of the pectoral muscle: subglandular submammary retroglandular ret.
Saline implants also revolutionized the actual procedures used to place breast prostheses into the body. Saline shells are implanted empty and filled once in proper anatomical position. This allows a far smaller and less noticeable incision. BREAST IMPLANT REMOVAL and REPLACEMENT with SALINE or GEL IMPLANTS Page 2 SETS TO OPEN Dr.C Plastic set, Dr.C Retractor set, basin for Solution C, Double Basin Set, metal kidney basin INSTRUMENTS USED (ON MAYO STAND).