A breast prosthesis includes a front part that is made of a silicone gel that is encapsulated in a polymer film. A back part that is made from a silicone elastomer is affixed thereto. An alternate form of breast prosthesis includes a front part that is made from a silicone elastomer. A back part that is made of a silicone gel that is encapsulated in a polymer film and that is affixed thereto. In a method of making a breast prosthesis in which a two chamber bag that includes a layer of polytetrafluoroethylene (PTFE), a layer of polyurethane and a layer of polyurethane is made. The bag is placed into a mold that defines a breast form-shaped cavity. A silicone gel material is injected into one chamber and a silicone elastomer material is injected into the other chamber. The materials are cured and the PTFE layer is removed.

Absorbable implants for breast surgery that conform to the breast parenchyma and surrounding chest wall have been developed. These implants support newly lifted breast parenchyma, and/or a breast implant. The implants have mechanical properties sufficient to support a reconstructed breast, and allow the in-growth of tissue into the implant as it degrades. The implants have a strength retention profile allowing the support of the breast to be transitioned from the implant to regenerated host tissue, without significant loss of support. Three-dimensional implants for use in minimally invasive mastopexy/breast reconstruction procedures are also described, that confer shape to a patient's breast. These implants are self-reinforced, can be temporarily deformed, implanted in a suitably dissected tissue plane, and resume their preformed three-dimensional shape. The implants are preferably made from poly-4-hydroxybutyrate (P4HB) and copolymers thereof. The implants have suture pullout strengths that can resist the mechanical loads exerted on the reconstructed breast.