The thumb base joint is a marvellous joint but is unfortunately prone to developing arthritis. The CMC (carpometacarpal) joint enables the thumb to oppose the fingers, providing humans with their distinctive hand dexterity. Arthritis at this joint leads to pain, stiffness and gradual change in thumb shape and function. Reducing pain is the primary aim of treatment. Pain can often be minimised with measures such as omega‑3/fish or krill oil supplements, topical anti‑inflammatory gels like Voltarol/Volatren Gel, oral nutraceuticals (for example passionfruit peel extract, turmeric/curcuma, Boswellia, Pycnogenol, L‑carnitine) and brief courses of oral anti‑inflammatory tablets.

It can help to minimise loads on arthritic joints during daily tasks, making everyday activities more comfortable and less painful. Simple assistive tools for jar opening and key turning are good examples that reduce strain on fingers and wrists. These items are widely available from online retailers and specialist suppliers, including organisations such as the Independent Living Centre.

A steroid injection, carefully administered under ultrasound guidance, can often settle a prolonged inflammatory flare that has not responded to other treatments.

If pain reaches an intolerable level, surgery can provide good relief.

Arthroscopy of the thumb joint can remove loose material in the joint if present.

In the younger person, a fusion or osteotomy may be appropriate for their individual circumstances.

Once the condition becomes advanced and pain is intolerable, surgical options such as a joint replacement (Touch Dual Mobility), or partial or complete removal of the bone (arthroscopic hemi-trapeziectomy, trapeziectomy with suspension) at the base of the thumb can provide significant pain relief.

The optimal solution is individualised to your circumstances.