An endoprosthesis configured to shift between a collapsed configuration and an expanded configuration, the endoprosthesis comprising: a tubular scaffold formed from a single filament knitted about a central longitudinal axis and defining a length from a proximal end to a distal end , the tubular scaffold including a plurality of rows of loops and a plurality of rows of rungs arranged around the central longitudinal axis in an alternating fashion; and a polymeric covering extending along the tubular scaffold ; wherein each row of loops extends longitudinally along the tubular scaffold between the proximal end and the distal end; wherein each row of rungs extends longitudinally along the tubular scaffold between the proximal end and the distal end ; characterized in that the tubular scaffold includes: a first cutout region extending along a majority of the length of the tubular scaffold and defining a first proximal end oriented toward the proximal end of the tubular scaffold and a first distal end oriented toward the distal end of the tubular scaffold; and a second cutout region extending along a majority of the length of the tubular scaffold and defining a second proximal end oriented toward the proximal end of the tubular scaffold and a second distal end oriented toward the distal end of the tubular scaffold ; wherein the polymeric covering is uninterrupted along the first cutout region and the second cutout region . a tubular scaffold formed from a single filament knitted about a central longitudinal axis and defining a length from a proximal end to a distal end , the tubular scaffold including a plurality of rows of loops and a plurality of rows of rungs arranged around the central longitudinal axis in an alternating fashion; and a polymeric covering extending along the tubular scaffold ; wherein each row of loops extends longitudinally along the tubular scaffold between the proximal end and the distal end; wherein each row of rungs extends longitudinally along the tubular scaffold between the proximal end and the distal end ; characterized in that the tubular scaffold includes: a first cutout region extending along a majority of the length of the tubular scaffold and defining a first proximal end oriented toward the proximal end of the tubular scaffold and a first distal end oriented toward the distal end of the tubular scaffold; and a second cutout region extending along a majority of the length of the tubular scaffold and defining a second proximal end oriented toward the proximal end of the tubular scaffold and a second distal end oriented toward the distal end of the tubular scaffold ; a first cutout region extending along a majority of the length of the tubular scaffold and defining a first proximal end oriented toward the proximal end of the tubular scaffold and a first distal end oriented toward the distal end of the tubular scaffold; and a second cutout region extending along a majority of the length of the tubular scaffold and defining a second proximal end oriented toward the proximal end of the tubular scaffold and a second distal end oriented toward the distal end of the tubular scaffold ; wherein the polymeric covering is uninterrupted along the first cutout region and the second cutout region . <EOS>