Calendered surgical meshes comprising polyhydroxyalkanoate polymers have been developed. These meshes, preferably made from poly-4-hydroxybutyrate or copolymer thereof, have a thickness that is between 50 to 99% of the thickness of the mesh prior to calendering, and a burst strength that is not less than 20% of the burst strength of the mesh prior to calendering. The thinner calendered meshes are particularly suitable for surgical applications where a thinner profile mesh with high burst strength is required, and where it is advantageous to have a mesh with a smooth surface. The meshes may be partially or fully resorbable, and are particularly suitable for use in the treatment of pelvic organ prolapse.
