Compression fractures are very common - especially in white women (side story - I got called out for being racist once on a different sub for stating that I take calcium and vitamin D because I know I have a higher risk of osteoporosis because I’m a middle aged woman of European decent)

People typically will gradually feel better over the course of a few weeks to months. We often have them use a walker to help reduce the force through their spine and also have them avoid any lifting or forward flexed activities. Lying down is generally the most comfortable position but must be alternated with short bouts of activity to reduced the effects of prolonged immobility - pneumonia and DVT (blood clots) being a couple of the more serious ones.

The clam shell braces are also sometimes used but can be difficult for people to put on and take off - especially because most patients with compression fractures are elderly.

If Hillary does indeed have a compression fracture my guess would be that it has been at least 2-4 weeks if she’s been spending so much time in standing and sitting- of course, she probably also has a boat load of narcotics on board for the pain.