Hallux rigidus is problem in which the first metatarsophalangeal joint becomes rigid. The options to treat this are limited with the main conservative option being rocker shoes. The only other option is to use surgical methods to manage.

More on Hallux Rigidus:

http://www.podiatry-arena.com/podiatry-forum/tags/index.php?tag=/hallux-rigidus/

http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=9579

http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=11477