A biocompatible surgical silk mesh prosthetic device employs a knit patternthat substantially prevents unravelingand preserves the stability of the mesh device, especially when the meshdevice is cut. An example prosthetic device employs aknitted mesh including at least two yarns laid in a knit direction andengaging each other to define a plurality of nodes. The atleast two yarns include a first yarn and a second yarn extending between andforming loops about two nodes. The second yam hasa higher tension at the two nodes than the first yarn. the second yarnsubstantially prevents the first yarn from moving at the twonodes and substantially prevents the knitted mesh from unraveling at thenodes.