Daniel, this is because the rootlets you have remaining are missing the velamin that normally supplies them with moisture. Don't cut anything off. Just place the whole plant, just as it is, in a large zip-loc baggie (big, like gallon sized or larger, if you can find one) with a wad of damp sphagnum or even a damp sponge. Keep this whole setup out of direct sunlight - something like a north-facing window. Keep it warm if possible. Every week or so open the bag, blow into it with your breath several times, then reseal it. Watch for signs of mold. That will appear as white hairy grow on the roots and plant. If this happens, leave the baggie open for an hour or so till the white stuff disappears. Reseal. In time (if lucky) green 'nubbins' will appear at base of lower leaves. Also the leaves will firm back up. The green nubbins will be new roots. When these get pretty long, like a couple cm or so, repot in new medium. You'll have to keep the repotted plant moist, but not wet, by keeping the whole setup in a relatively high humidity. Sounds complicated but it's simpler than it sounds. Folks around here call this sphag-and-bag.