I'm healing from a broken hip myself ... it's not cancer, just one of those things ... we suspect the bone was broken before I fell, and as far as causes, the only thing we've turned up is some vitamin deficiencies (and who knows what chemo could have done, of course). I hope yours heals soon ... two surgeries? Yikes! You've been through too many wringer already to need this one too. Once you get moving, it does get better, really. The surprise I found was some calcification in the joint (sclerosis, they said), and that's making complications ... but if that is a problem for you, it will show up on the x-rays as you heal. (I don't know what they do about it ... I don't even want to ask, sigh.) Just wanted to mention it in case you have some weird pain that nothing else will quite explain as you heal.

((hugs))