Each day, with every step you take, your big toe bears a tremendous amount of stress—a force equal to about twice your body weight. Most of us don’t realize how much we use our big toe. We tend to take it for granted, unless a problem develops.
One problem that afflicts the big toe is called hallux rigidus, a condition where movement of the toe is restricted to varying degrees. This disorder can be very troubling and even disabling, since we use the all-important big toe whenever we walk, stoop down, climb up, or even stand. If you have pain and/or stiffness in your big toe, you may have this condition.
What Is Hallux Rigidus?
Hallux rigidus is a disorder of the joint located at the base of the big toe. It causes pain and stiffness in the big toe, and with time it gets increasingly harder to bend the toe. “Hallux” refers to the big toe, while “rigidus” indicates that the toe is rigid and cannot move. Hallux rigidus is actually a form of degenerative arthritis (a wearing out of the cartilage within the joint that occurs in the foot and other parts of the body).
Because hallux rigidus is a progressive condition, the toe’s motion decreases as time goes on. In its earlier stage, motion of the big toe is only somewhat limited; at that point, the condition is called “hallux limitus.” But as the problem advances, the toe’s range of motion gradually decreases until it potentially reaches the end stage of “rigidus”—where the big toe becomes stiff, or what is sometimes called a “frozen joint.” Other problems are also likely to occur as the disorder progresses.
Early signs and symptoms include:
- Pain and stiffness in the big toe during use (walking, standing, bending, etc.)
- Pain and stiffness aggravated by cold, damp weather
- Difficulty with certain activities (running, squatting)
- Swelling and inflammation around the joint
As the disorder gets more serious, additional symptoms may develop, including
- Pain, even during rest
- Difficulty wearing shoes because bone spurs (overgrowths) develop. Wearing high-heeled shoes can be particularly difficult.
- Dull pain in the hip, knee, or lower back due to changes in the way you walk
- Limping, in severe cases
What Causes Hallux Rigidus?
Common causes of hallux rigidus are faulty function (biomechanics) and structural abnormalities of the foot that can lead to osteoarthritis in the big toe joint. This type of arthritis—the kind that results from “wear and tear”—often develops in people who have defects that change the way their feet and big toes functions. For example, those with fallen arches or excessive pronation (rolling in) of the ankles are susceptible to developing hallux rigidus.
In some people, hallux rigidus runs in the family and is a result of inheriting a foot type that is prone to developing this condition. In other cases, it is associated with overuse—especially among people engaged in activities or jobs that increase the stress on the big toe, such as workers who often have to stoop or squat. Hallux rigidus can also result from an injury—even from stubbing your toe. Or it may be caused by certain inflammatory diseases, such as rheumatoid arthritis or gout. Your podiatric foot and ankle surgeon can determine the cause of your hallux rigidus and recommend the best treatment.
Diagnosis of Hallux Rigidus
The sooner this condition is diagnosed, the easier it is to treat. Therefore, the best time to see a podiatric surgeon is when you first notice that your big toe feels stiff or hurts when you walk, stand, bend over, or squat. If you wait until bone spurs develop, your condition is likely to be more difficult to manage.
In diagnosing hallux rigidus, the podiatric surgeon will examine your feet and manipulate the toe to determine its range of motion. X-rays are usually required to determine how much arthritis is present as well as to evaluate any bone spurs or other abnormalities that may have formed.
Treatment: Non-Surgical Approaches
If your condition is caught early enough, it is more likely to respond to less aggressive treatment. If fact, in many cases, early treatment may prevent or postpone the need for surgery in the future. That’s why it is important to see your podiatric surgeon when you first begin to notice symptoms.
This information has been prepared by the Consumer Education Committee of the American College of Foot and Ankle Surgeons, a professional society of 5,700 podiatric foot and ankle surgeons. Members of the College are Doctors of Podiatric Medicine who have received additional training through surgical residency programs. The mission of the College is to promote superior care of foot and ankle surgical patients through education, research and the promotion of the highest professional standards.
Copyright © 2004, American College of Foot and Ankle Surgeons,www.acfas.org
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