Attached Link: Hedgehog rigging

Sadly, I think the only solution to poser's current ugly joints is to improve your postwork skills - fix 'em in photoshop.

Check out the videos on this link for a truly impressive custom rigging setup. I think it's in XSI. Of course this little catroon hedgehog isn't set up to be realistic, just to bend exactly how the artist wants him to bend. Achieving realistic bending is a whole 'nother bag of beans, but no less complicated.

(the main ones to check out are numbers 3 and 4, but the others are cool too)