Walking Gear — Sean Monaghan

When Den tracks down his sister Jenni in a squalid Ridgecrest condo, it looks like she's in worse shape than ever. Den's risking his career to help her out. And she doesn't even want what he's offering: a chance at a new life, and a new leg into the bargain. Originally published in Asimov's Science Fiction Magazine, from the author of The Whalefall.