Prostheses & Implant Outcomes

Can an Artificial Joint Really Fix Your Thumb Arthritis?

May 25, 2026 7 min read
Can an Artificial Joint Really Fix Your Thumb Arthritis?

If you suffer from thumb pain at the base of your thumb, you may have heard about a condition called rhizarthrosis. This is a type of arthritis that affects the joint where your thumb connects to your wrist. For people with severe pain, doctors sometimes suggest an artificial joint replacement. But does it really work?

A recent study from the Archives of Orthopaedic and Trauma Surgery looked at 136 artificial joint replacements in 105 patients. The results show that most people felt much better after the surgery. Here are three key points to know:

  • 85% of patients had no pain and were completely satisfied.
  • The surgery improved both pain levels and hand function.
  • Very few people had serious problems after the surgery.

Key Findings at a Glance

  • Research shows that 85% of patients reported full satisfaction and no symptoms after thumb joint replacement surgery.
  • According to this study, the average follow up period was 85 months, which is about seven years after surgery.
  • Only 5 patients out of 136 surgeries needed a second operation to fix a problem.
  • Studies indicate that pain scores and disability scores improved in all patients who had the surgery.
  • The most common side effect was temporary numbness in the thumb, which happened in just 6% of cases.

What is this joint replacement surgery?

Let us start by understanding what doctors mean by total joint arthroplasty. This is a fancy name for replacing a worn out joint with an artificial one. Think of it like replacing an old hinge on a door with a new one.

What is the CMC joint? CMC stands for carpometacarpal joint. This is the joint at the very base of your thumb where it connects to your wrist. It allows your thumb to move in many directions so you can grip and pinch things.

When this joint wears out from arthritis, the bones rub together. This causes pain and makes it hard to use your thumb. An artificial joint can take the place of the damaged joint. The goal is to take away pain and help your thumb work better.

You may be wondering why this matters. Without a working thumb, even simple tasks like opening a jar or turning a key become difficult or impossible.

Who was in the study?

According to this study, the researchers looked at 105 patients who had thumb joint replacement surgery. Most of them were women. In fact, 96 women and only 9 men were in the study. This makes sense because women get thumb arthritis more often than men.

The doctors used three different types of artificial joints. These were called ELiS, Ivory, and Touch Dual mobility implants. All of these are designed to replace the worn out joint and let the thumb move smoothly again.

Every patient was checked at least three years after their surgery. Some were followed for much longer. The average follow up time was 85 months. That is more than seven years.

What did the researchers find?

Here is where it gets interesting. The doctors measured several things before and after surgery. They wanted to know if pain got better, if the hand worked better, and if the artificial joint stayed in place.

Research shows that pain levels dropped in every single patient. The doctors used something called a VAS score. This is a simple scale where patients mark how much pain they feel. After surgery, all the scores went down. That means everyone had less pain.

What is a DASH score? DASH stands for Disabilities of the Arm, Shoulder and Hand. It is a questionnaire that asks patients how well they can do everyday activities. A lower score means the hand works better.

The DASH scores also improved for everyone. This means patients could do more with their hands after surgery. Simple things like buttoning a shirt or holding a cup became easier.

The range of motion also increased. Range of motion is how far you can move your thumb in different directions. After surgery, patients could move their thumbs more freely.

How many people felt better?

Studies indicate that 116 patients out of 136 surgeries reported being completely satisfied. That is 85% of all cases. These people said they had no symptoms and no difficulties using their thumb.

Let us look closer at what happened to the other patients:

  • In 12 cases, which is 9%, patients had slight pain only after exercising or using their hand a lot.
  • In 8 cases, which is 6%, patients still had some pain at rest. But even this pain was much less than before surgery.

So nearly every patient felt better. Even those with some remaining pain had much less pain than before.

Were there any problems?

According to medical evidence, no patient had complications during the actual surgery. All 136 operations went smoothly. This is important because it shows the surgery itself is safe when done by experienced doctors.

However, five patients did need a second surgery later. This is called revision surgery. Here is what happened:

  • Two patients had a dislocation. This means the artificial joint came out of place.
  • Three patients had loosening of the cup part of the implant. The cup is one piece of the artificial joint that fits into the bone.

Five problems out of 136 surgeries is less than 4%. This is a very low rate of serious complications.

The most common problem was temporary numbness or tingling in the thumb. Doctors call this paraesthesia. It happened in eight cases, which is 6%. The good news is that this numbness was temporary. It went away on time.

Outcome Number of Cases Percentage
Full satisfaction, no symptoms 116 85%
Slight pain after exercise 12 9%
Some rest pain (less than before) 8 6%

Common Questions About Thumb Joint Replacement

How long does it take to recover from thumb joint replacement?

According to this study, patients were followed for at least three years after surgery. Most patients reported improvement in pain and function within the first year. The artificial joints remained stable over an average of seven years.

Is thumb joint replacement risky?

Research shows that all 136 surgeries in this study were completed without complications during the operation. Only 5 patients out of 136 needed a second surgery to fix a problem. The most common issue was temporary numbness, which occurred in 6% of cases and resolved over time.

Will I be able to use my thumb normally after surgery?

Studies indicate that all patients in this research had improved hand function after surgery. Their DASH scores, which measure how well you can do daily activities, improved. Their range of motion also increased, meaning they could move their thumb more freely.

What if I still have some pain after surgery?

According to medical evidence from this study, 85% of patients had no pain at all. Another 9% had only slight pain after heavy use. Even the 6% who had some rest pain reported that it was much less intense than before surgery.

About This Site

This website helps people understand medical science about thumb pain and rhizarthrosis. We read published scientific articles and explain them in simple language. Everything we share comes from real research done by doctors and scientists. If you want to learn more about thumb arthritis, treatment options, or what new research shows, explore more articles on our site. We are here to help you understand your options.

What does this mean for you?

If you have severe thumb arthritis that does not get better with other treatments, joint replacement may be a good option. Research shows that most people who have this surgery feel much better. They have less pain and can use their hand more easily.

The surgery is safe when done by skilled doctors. Serious problems are rare. Most patients are happy with their results even years after surgery.

Of course, every person is different. What works well for one person may not be the best choice for another. If you are thinking about this surgery, talk with your doctor. Ask about your specific situation. Together, you can decide what is right for you.

The most important thing to know is that there is hope. Thumb arthritis can be very painful and frustrating. But treatment options exist that really work.

Important Information

This article is for educational purposes only. It is not medical advice. It does not replace talking with your doctor. Every medical decision should be made with the help of a qualified healthcare professional who knows your specific situation. If you have thumb pain or think you may have arthritis, please see a doctor for proper diagnosis and treatment recommendations.

Research Source

This article is based on research published by Jurča, Jiří; Vlach, Martin; Havlas, Vojtěch in Archives of Orthopaedic and Trauma Surgery (2025).

https://doi.org/10.1007/s00402-024-05663-1

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Medical Disclaimer: This resource is patient-authored and based on peer-reviewed research. It is not a substitute for professional medical advice. Always consult your healthcare provider before making any treatment decisions.
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