Bodily implants (36, 42) that can be compacted in a distal-to-proximal direction, and which facilitate repositioning of the implant after compaction. The implants include at least one pull string (60, 62, 64) for expanding the implant in a radial direction while compacting the implant in the longitudinal direction. Where multiple pull strings are provided, they can be secured to the implant at spaced locations along the implant length, and pulled successively to compact the implant in a distal-to-proximal direction. A guide member (90, 98) may also be provided to receive the pull strings and facilitate longitudinal compaction.