If you are currently reading this while propping up a limb that resembles a structural beam more than a human leg, you might be wondering if a spa treatment after knee surgery is actually a sensible travel goal. The short answer is yes, though perhaps not if your idea of a spa day involves a burly Swedish man attempting to fold your uncooperative joints like a piece of high end origami. We are talking about a very specific type of rehabilitative luxury. This is the art of the post operative pilgrimage, where the clinical white of the hospital ward is …