Among three types of testicular implant available, this is the only one approved by FDA. This implant is same as that of real testicles in terms of shape, weight and softness. In addition, these implants are also available in different sizes, such as extra-small, small, medium and large. The Coloplast implants are made up of molded silicone elastomer shell that is invisible on the x-ray examination. Just before the implantation, the device is filled with sterile solution of saline via injection. The injection site is self-sealing. A silicone elastomer tab is located on the other side of device that allows suturing and setting the implant in the right position.
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This type of testicular implant are available in limited countries outside of USA, as the device is not FDA approved. It is filled with cured silicone elastomer, and is also available in extra-small, small, medium, large, extra-large sizes. It is similar to real testicles but not exactly the same.
These implants are also very frequently used across the Unites States. Silicone implants are made up of thin, smooth surfaced and soft silicone elastomer which is mechanically and chemically resistant. The shape and density is designed to make it nearer to the actual testicles. It is available in five different sizes and is also highly safe to use. These implants are mainly intended to be used for cosmetic or reconstructive reasons in individuals who are born without testicles or those who have their testicles removed due to atrophy or cancer.
Sources:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6958971/
https://my.clevelandclinic.org/health/treatments/15993-testicular-prosthesis
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