The present embodiments provide a prosthesis (20) comprising first and second segments (30, 40), and an axially extendable segment (50) coupled to the first and second segments. A valve (60) is coupled to at least one of the axially extendable segment (50) or the second segment (40). The axially extendable segment (50) comprises a first state in which the valve at least partially overlaps with the first segment, and the axially extendable segment comprises a second state in which the valve lacks an overlap with the first segment.
