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Thumb base arthritis treatment in Edmonton
Osteoarthritis at the base of the thumb makes pinching hurt more than gripping: turning a key, opening a jar, using a phone. Assessment at our southeast Edmonton clinic checks whether the joint is the source rather than a nearby tendon problem such as De Quervain's.
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What is thumb base arthritis?
The joint at the base of the thumb, where it meets the wrist, is a saddle-shaped joint built for an unusual amount of movement. That mobility comes at a cost: it is one of the most common sites of osteoarthritis in the hand. The cartilage thins, the joint becomes painful to load, and the everyday pinching and gripping that the thumb does all day becomes the thing that hurts most.
How it usually behaves
Pain sits right at the base of the thumb, on the side of the wrist, and is provoked by pinch rather than by whole-hand grip — turning a key, opening a jar or a bottle, pulling a zip, wringing out a cloth, using a phone one-handed.
It is more common after about 50 and more common in women. Over time the joint can become stiffer and the base of the thumb can look squarer. Some people have marked changes on X-ray with modest symptoms, and others have significant pain with less visible change — the image and the experience do not track each other closely.
How it is assessed
The goal is confirming the joint is the source rather than a tendon nearby, and seeing how much function it is costing.
- Where the pain is precisely, and which specific tasks bring it on
- Loading and grinding the joint gently to see whether that reproduces it
- Separating it from De Quervain’s, which sits slightly further up the wrist
- Pinch and grip strength compared with the other side
- Thumb position and how the hand compensates during everyday tasks
What treatment usually involves
A splint is often the single most useful thing, particularly one that supports the thumb base while leaving the tip free. Worn for provoking tasks and sometimes overnight, it reduces load through the joint without putting the hand out of action.
Then strengthening the muscles that stabilise the thumb base, which reduces how much the joint itself has to resist during pinch. Alongside that: changing how tasks are done, and using tools that widen grip — jar openers, thicker pen barrels, lever taps. These sound minor and are frequently what makes the day tolerable.
Hands-on treatment and joint mobilisation can help with stiffness and pain. Injection is an option through your physician, and surgery exists for joints that are no longer manageable — but the majority of people do not need it.
Questions people ask
Will it keep getting worse?
Not necessarily in a straight line. Osteoarthritis changes slowly and symptoms fluctuate; plenty of people find the joint settles into something manageable with load management and strength, even though the joint surface does not go back to how it was.
Does using my hand damage it further?
Normal use does not wear the joint out faster. What causes pain is loading it in the positions it tolerates least — usually hard pinch. Adjusting those tasks is different from protecting the hand from everything, which costs strength you need.
Should I wear the splint all day?
Usually not. Continuous use weakens the hand over time. Most people do better wearing it for the tasks that hurt and at night, rather than as standard.
Is surgery worth it?
For a joint that has stopped responding and is genuinely limiting daily life, it can be. It is a considered decision with a hand surgeon, and recovery involves a meaningful period of hand therapy afterwards.
Is thumb arthritis inevitable as I get older?
Changes on X-ray are common with age, but pain is not inevitable and it does not track with how the X-ray looks. Many people with clear joint changes have little pain once strength and joint protection are addressed.
Would a splint help?
Often, yes. A soft thumb support for heavy tasks and a firmer one for flare-ups reduce pain while you build strength in the small thumb muscles. The physiotherapist will advise which type and can fit one at the appointment.
Should I avoid using my thumb?
No. Avoiding the movements that spike pain sharply is sensible, but the thumb needs to stay strong and mobile. Joint protection is about how you grip, not about stopping. Jar openers and larger-handled tools make a surprising difference.
Book a hand assessment
Vertex Physiotherapy is at 6958 76 Ave NW #205, Edmonton, AB T6B 2R2. Call (825) 525-2852 or book online.