Our thumbs are critical to countless daily tasks and are often taken for granted until they are injured or begin to hurt. If you are having difficulty opening bottle caps, have pain with forceful pinching, are beginning to lose strength in you thumbs, or find yourself massaging the base of your thumbs at the end of the day, you may have thumb arthritis.
The joint at the base of the thumb is one of the joints most commonly affected by arthritis as we age. Arthritis at this joint can make many simple daily tasks such as pulling on your socks or pants painful and difficult. Many people are unaware that treatment options exist and assume the discomfort is an unfortunate, unavoidable part of aging.
Thumb Arthritis: What is it?
Thumb basal joint or CMC joint arthritis is a degenerative condition affecting the joint at the base of the thumb where the thumb meets the wrist. Arthritis involves inflammation of the joint and loss of the cartilage on the ends of the bones resulting in bone grinding on bone and loss of smooth gliding motion at the joint. This joint is most commonly affected by osteoarthritis or wear-and-tear arthritis but other arthritic conditions such as rheumatoid arthritis can affect the joint as well. Arthritis at this joint is most common in women over 40, but can affect anyone.
Symptoms: What does Thumb Arthritis feel like?
- Aching and occasionally sharp or throbbing pain at the base of the thumb is the most common complaint in individuals with thumb arthritis, especially after increased use.
- Pain or weakness with forceful use of the thumb for activities such as unscrewing a lid, turning a key, twisting a doorknob, wringing out a wash cloth, or writing are common.
- Stiffness or loss of motion at the base of the thumb
- Swelling or a bump on the back side of the thumb gradually develop over time.
Causes
In general arthritis at the base of the thumb develops as we age and the cartilage at this joint wears out. There are several things that may contribute to or accelerate this process.
Individual risk factors
Age over 40
Women more common than men
Joint laxity or “double jointed”
Obesity
Inflammatory conditions such as rheumatoid arthritis
Activity related risk factors
Prior fracture or trauma to the joint
Occupations or hobbies involving repetitive forceful gripping and pinching
Evaluation: How is Thumb Arthritis diagnosed?
Your doctor will ask you questions about your symptoms and what makes your symptoms more bothersome. Several physical exam tests can be done such as looking for swelling or change in the normal alignment of the thumb, pressing over the joint to see where the tenderness is, moving the joint and feeling for a grinding sensation, or measuring your pinch strength.
X-ray
X-rays of your thumb are the most useful test to assess for arthritis.
Treatment
Non-operative treatment
- Thumb splint: wearing a rigid splint on the thumb limits motion and can decrease the inflammation and pain in the joint. This is often a first-line treatment.
- Activity changes: avoiding activities that cause pain can allow the joint to become less painful. There are many adaptive devices that make activities such as opening bottles, fastening buttons, holding a pen, or other daily activities less painful.
- Non-steroidal anti-inflammatory drugs (NSAID’s): anti-inflammatories such as ibuprofen or naproxen or topical over the counter pain creams can help reduce the discomfort in the joint.
- Therapy: strengthening some of the muscles that stabilize the thumb may help to slow the progression of the arthritis and some pain relieving modalities such as ice or paraffin treatments can help control the pain.
- Corticosteroid injections: corticosteroid (also known as cortisone) injections help to decrease inflammation, swelling, and pain associated with thumb arthritis and are often used before considering surgery.
Surgery
- There are several surgeries that can be done for thumb arthritis. The most common is a procedure in which the arthritis bone at the base of the thumb, the trapezium, is removed and the thumb stabilized with a tendon graft from your wrist or forearm. In effect, this replaces the bone-on-bone arthritis with bone on a soft-tissue cushion or sling. This provides pain relief while preserving motion and function of the thumb.
- Risks of surgery are low and include, but are not limited to nerve, tendon, or blood vessel damage, infection or wound healing problems, painful scar tissue and some ongoing discomfort or swelling in the thumb.
Recovery: What Can Be Expected?
Surgery for thumb arthritis is an outpatient procedure meaning patients go home the same day as surgery. The thumb and wrist are initially immobilized in a hard splint. Light use of the hand is permitted immediately after surgery.
Sutures are usually removed between one and two weeks after surgery. A removable splint is worn for 4-6 weeks after surgery to keep the thumb stable while it heals. Activities can be gradually advanced as tolerated. Hand therapists provide instruction in range of motion and strengthening exercises.
Thumb function and strength continues to improve for several months after surgery. It is possible, but uncommon for symptoms to return or future surgery be necessary after this procedure.
Frequently asked questions about Thumb Arthritis
Could my thumb pain be anything other than arthritis?
Yes. Tendon conditions such as trigger finger or DeQuervain’s tenosynovitis can cause thumb pain. Carpal tunnel syndrome can also cause pain in the thumb.
Does thumb arthritis ever go away?
While the joint does not regrow normal cartilage, the pain associated with the arthritis sometimes becomes less with time as the arthritis progresses and the joint becomes more stiff. The decision to pursue surgery is not based on the severity of X-ray findings, but rather on the severity of your symptoms.
How do I know if I have thumb arthritis or carpal tunnel syndrome?
Your doctor will examine your thumb and wrist and obtain X-rays. Your exam findings and X-rays will be helpful in determining if your pain is from arthritis or carpal tunnel syndrome. Carpal tunnel syndrome is usually associated with numbness and tingling in addition to pain. Thumb arthritis is usually just painful. It is possible to have both carpal tunnel syndrome and thumb arthritis.
How long do cortisone injections for thumb arthritis provide relief?
There are many factors such as severity of the arthritis and activity levels that affect how long cortisone injections provide relief but on average people get relief for 3-6 months after the injections.
Are viscosupplement or joint lubricant injections an option for thumb arthritis?
Many people with thumb arthritis also have knee arthritis and may have had relief with viscosupplement injections such as Synvisc, Euflexxa, or Suppartz in the knees. Unfortunately, these have not been shown to be better than corticosteroid injections for thumb arthritis and are much more costly. Therefore, they are not generally used for thumb arthritis.
Can stem cells be used to treat thumb arthritis?
Several studies have been done to evaluate the effectiveness of stem cell therapies for thumb arthritis with varying results. Insurance companies do not yet cover these treatments.
Can you prevent or slow the progression of thumb arthritis?
Nothing has been shown to definitively change the course of thumb arthritis. There have been some promising studies suggesting that some exercises to strengthen the muscles around the thumb can be helpful in stabilizing the joint and reducing the wear on the joint. Some people get relief with supplements such as glucosamine and chondroitin but scientific studies have not shown much effect of these on the progression of arthritis.
Is it better to have surgery sooner rather than later for thumb arthritis?
How aggressive to be treating thumb arthritis is dependent on the severity of your symptoms and how they are interfering with your life and daily activities as well as how they can be controlled with non-operative treatments. There is no harm in waiting to have surgery for thumb arthritis. The results of surgery are not worse if you wait until the arthritis has progressed.
Can you have surgery on both thumbs at once?
This is not usually recommended. The procedure involves wearing a splint on the thumb and wrist and having both hands immobilized at once makes daily activities very difficult. Patients with arthritis in both thumbs usually wait 2-3 months between the two surgeries.
How long will I be out of work after surgery?
This depends on the nature of your work and the willingness of your work to accommodate light duty. Low demand activities such as clerical work can often be resumed within a week or two after surgery. Returning to unrestricted, high demand activities can take up to 3-6 months after surgery.
Physicians
The following physicians specialize in the treatment of Thumb Arthritis:
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I highly recommend Dr. Jones to anyone having issues with their hands. I made an appointment with Dr. Jones based on a recommendation from someone who has the opportunity to work with him in the OR. I was told he was a very good surgeon and ‘one of the nicest people you will ever meet’. I was extremely happy with my first visit. He believes surgery should be a last resort and recommended a cortisone shot and splints to wear as needed. So far this has been very effective for me. Great results!
GREAT DOCTOR!!! So professional, but still down to earth!! Love this Doctor!! 2 surgeries by him, and will only have him again!! Does a beautiful job on my hand!! Thanks Dr. Jones!!!!! Highly recommend Dr. Jones!!
I have been very pleased with the professionalism and quality of care that Dr. Jones has demonstrated. He has been very compassionate and dedicated to making sure that I gain back as much function in my hands as possible. He was proactive in managing the pain after surgery by using a nerve block. This allowed me to focus on healing rather than focusing on the pain.
On October 10th I finally had Carpal Tunnel Relief Surgery to hopefully help the problem. Dr. David Jones Jr. with the Orthopedic Institute @orthoisf in Sioux Falls did the surgery. The first thing I noticed within a couple days of surgery is that I was sleeping through the night, and dreaming. Now that may sound strange but I haven’t really had dreams at night for years because I was constantly waking up and never able to reach a deep sleep where dreams happen. The next thing I noticed is that my hands were not going numb and were pain free when I would drive a car or hold my phone. On October 23, thirteen days after surgery I returned to the Orthopedic Institute to see Dr. Jones for a checkup and to get my stitches removed. I decided to make the the 4 hour round trip on my bike. My hands never went numb one time and I had no pain! I could not be happier with the outcome! Why did I wait so long to get this done?! #relief #letsride#TeamUpOI
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