A three-dimensional fabric structure in a form of a pocket for use in a breast reconstruction surgical procedure such as single-stage or two-stage breast reconstruction. The silk scaffold employs a knit pattern that substantially prevents unraveling and preserves the stability of the mesh or scaffold device, especially when the mesh or scaffold device is cut. An example scaffold device employs a knitted mesh including at least two yarns laid in a knit direction and engaging each other to define a plurality of nodes.