An endoprosthesis, comprising: an expandable tubular framework having a first end and a second end defining a length therebetween, and a lumen extending therethrough along a central longitudinal axis, the expandable tubular framework being expandable from a compressed state to an expanded state and including: a plurality of strut rows, wherein adjacent strut rows define interstices therebetween, each interstice having a length along the central longitudinal axis and spacing the adjacent strut rows apart; a plurality of connectors extending across the interstices between adjacent strut rows and interconnecting adjacent strut rows, at least some of the plurality of connectors defining a flexible hinge portion; wherein the lengths of the interstices between adjacent strut rows vary along the length of the expandable tubular framework in the expanded state; wherein the plurality of connectors extends radially outward beyond an outer diameter of the plurality of strut rows in the expanded state; wherein the plurality of connectors is configured to engage a wall of a body lumen in the expanded state to inhibit migration of the endoprosthesis subsequent implanting the endoprosthesis in the body lumen; and a polymeric cover extending along the full length of the expandable tubular framework from the first end to the second end, covering the plurality of strut rows and spanning the interstices between adjacent strut rows, characterized in that in the expanded state, spaces defined between the radially outward extended plurality of connectors and an outer surface of the polymeric cover spanning the interstices, as viewed along the central longitudinal axis, are devoid of the polymeric cover to permit tissue ingrowth around the plurality of connectors. an expandable tubular framework having a first end and a second end defining a length therebetween, and a lumen extending therethrough along a central longitudinal axis, the expandable tubular framework being expandable from a compressed state to an expanded state and including: a plurality of strut rows, wherein adjacent strut rows define interstices therebetween, each interstice having a length along the central longitudinal axis and spacing the adjacent strut rows apart; a plurality of connectors extending across the interstices between adjacent strut rows and interconnecting adjacent strut rows, at least some of the plurality of connectors defining a flexible hinge portion; a plurality of strut rows, wherein adjacent strut rows define interstices therebetween, each interstice having a length along the central longitudinal axis and spacing the adjacent strut rows apart; a plurality of connectors extending across the interstices between adjacent strut rows and interconnecting adjacent strut rows, at least some of the plurality of connectors defining a flexible hinge portion; wherein the lengths of the interstices between adjacent strut rows vary along the length of the expandable tubular framework in the expanded state; wherein the plurality of connectors extends radially outward beyond an outer diameter of the plurality of strut rows in the expanded state; wherein the plurality of connectors is configured to engage a wall of a body lumen in the expanded state to inhibit migration of the endoprosthesis subsequent implanting the endoprosthesis in the body lumen; and a polymeric cover extending along the full length of the expandable tubular framework from the first end to the second end, covering the plurality of strut rows and spanning the interstices between adjacent strut rows, characterized in that in the expanded state, spaces defined between the radially outward extended plurality of connectors and an outer surface of the polymeric cover spanning the interstices, as viewed along the central longitudinal axis, are devoid of the polymeric cover to permit tissue ingrowth around the plurality of connectors.