Smart patch could enable earlier detection of osteoarthritis

Discovering early signs of osteoarthritis could become easier thanks to the development of a new smart patch by UK researchers. The team has started developing a cheap and simple way of identifying the signs of osteoarthritis before it fully develops.

Many people with osteoarthritis notice clicking or grating sounds in their joints and bones during regular movement. These are because of friction between cartilage and bone but are usually only noticeable once the condition has progressed past the point where anything can be done about it. However, earlier in the process joints make similar sounds that cannot be heard by the human ear.

The patch will use acoustic emission sensors (often used to detect shockwaves created by damage in aircraft wings) to pick up these sounds, therefore allowing the disease to be caught at an earlier stage than is currently possible.

The patches would be convenient to wear and disposable, a welcome alternative to expensive MRA scans and X-rays.

“Around 4.71 million people in the UK live with knee osteoarthritis,” explains Dr Natalie Carter from Arthritis Research UK. “It can affect a person’s ability to carry out everyday tasks such as walking, dressing and climbing stairs.

“Early diagnosis for the condition is very important, so we will be looking at the results to see how it could improve the lives of people with osteoarthritis. With early intervention, people can begin self-management, such as exercise before irreversible damage to the joint has occurred, and hopefully delay the need for surgery.”

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