Stiff big toe (hallux rigidus)

What is hallux rigidus?

Hallux rigidus is arthritis of the main joint of the big toe, where the joint surfaces wear out and cause pain and stiffness¹. It's common, and one review calls it the most common arthritic condition of the foot². You may also hear "hallux limitus". That means a slight loss of movement in the same joint, while hallux rigidus is a bigger loss, sometimes a complete one³.

It can be mistaken for a bunion (hallux valgus). With hallux rigidus the bony lump is usually over the top of the joint, not on the inner side of the toe⁴. Only a clinician can tell them apart, so it's best to have it assessed rather than guess.

What causes it, and who gets it?

Often there's no clear cause. Like other joints, the big toe joint can wear down over time⁴. Many people with it have a family history, and both feet are often affected⁵. A past toe injury such as a sprain or break⁴, or conditions such as gout or rheumatoid arthritis¹³, can also lead to it, though injury seems to explain only a small share of cases⁶.

Foot shape may be linked with hallux rigidus, but that doesn't prove it's the cause⁷. If you have a family history or a past toe injury, mention it when you're assessed.

What does it feel like, and how is it diagnosed?

Typically it's pain and stiffness in the big toe joint, worse with walking, running, stairs and other activities that bend the toe upwards⁵. You may lose the ability to bend the toe up, while bending it down is usually kept¹. A bony lump often forms on top of the joint and can rub on your shoes⁸.

A clinician will ask about your symptoms and any injury, then check how the joint moves and where it's tender⁹. An X-ray is usually used to confirm the diagnosis¹⁰. They'll also look for other causes of big toe pain, such as a fracture, gout, infection or an ulcer⁹¹⁰¹¹. Before your appointment, note when the pain started, any past injury and what makes it worse, and bring the shoes you wear most.

What helps first?

Most people start with self-care and non-surgical treatment.

• Footwear: shoes with a deep, wide toe box and a firm, stiff sole can reduce rubbing and restrict movement through the joint¹⁴. A rocker sole (a curved sole that helps you roll through each step) may reduce motion at the joint and ease pain¹². Avoid thin, flexible soles and high heels.
• Activity: pace yourself, and avoid things that force the toe far upwards, such as stairs or running, if they bring on pain⁵.
• Pain relief: a pharmacist or GP can advise on options such as paracetamol, and whether anti-inflammatory medicines suit you¹⁰.

Insoles that limit joint movement are often suggested¹². However, arch-contouring orthoses and shoe-stiffening inserts probably make little or no difference to pain or function compared with sham (fake) inserts, and a single hyaluronic acid injection into the joint probably doesn't either¹³. A steroid injection may be considered¹⁰. Overall, conservative care helps about half of people⁵, and the support for non-surgical treatments is limited¹³.

What helps if that isn't enough?

Your GP or podiatrist may refer you on if first-line care hasn't helped, the diagnosis is unclear or symptoms are getting worse⁹. Mild or moderate symptoms usually go to podiatry. Severe symptoms, or no response to podiatry or injections, can lead to a review by an advanced practitioner who considers surgery¹⁰.

Removing the bony lumps from the joint (cheilectomy) is generally used for earlier stages, and fusing the joint (arthrodesis) for advanced arthritis¹⁴. If surgery is offered, ask which procedure is proposed and why, and about the risks and recovery time. Weight-bearing X-rays are usually needed for the referral¹⁰.

What's the outlook, and can it come back?

Many people manage with supportive footwear, insoles and pacing their activities. Keep using the footwear and any insoles you've been advised to use¹², and avoid activities that repeatedly push the big toe far upwards⁹.

How often hallux rigidus progresses without treatment, and what stops it coming back, isn't clear yet. So return for review if symptoms worsen or stop responding to your usual measures⁹. Getting toe pain checked early matters, because delayed treatment or misdiagnosis of big toe pain can lead to loss of function and long-lasting pain¹⁵.