Hallux Rigidus or dorsal bunion is a essentially a stiff painful great toe. It can come on with age or be due/aggravated by an injury, the end result is a toe that is stiff and may hurt in some or all shoes. It is particularly distressing in woman who want to wear heels and tight shoes . Roomy shoes with soft material (e.g. jogging shoes) almost always feel best. The cause of the problem is arthritis of the joint. Fortunately it is a process that slowly develops. There are many treatments from changes in shoe styles, to orthotics, injections and ultimately surgery.
Dr Sheskier has developed a technique for severe hallux rigidus that allows motion of the toe for cases that otherwise would require a fusion. (video of procedure)