If you have pain at the base of your thumb, you may have heard the words CMC arthritis or rhizarthrosis. This kind of arthritis can make simple tasks like opening a jar or turning a key very difficult. You may be wondering if surgery can help you feel better. A recent study looked at patients who had a special type of thumb surgery using a small implant. The results show that most people felt much less pain and could use their thumbs better after the procedure.
Key Findings at a Glance
- Pain scores dropped to very low levels, averaging just 1.37 on a scale of 1 to 10 after surgery.
- Patients could move their thumbs nearly as well as their healthy thumb, reaching almost 96% of normal movement.
- Quality of life improved greatly, with disability scores averaging only 9.98 out of 100.
- The complication rate was about 11%, with dislocation of the implant being the most common issue.
- All patients who had complications were successfully treated and went on to recover well.
Here are three important things this study tells us:
- Thumb surgery with a special implant can greatly reduce pain from CMC arthritis.
- Most people get back nearly full movement of their thumb after healing.
- Quality of life improves, letting patients return to everyday activities.
In this article:
- What is CMC arthritis and why does it hurt?
- What did the study do?
- What were the results after surgery?
- Were there any problems or complications?
- What does this mean for you?
- Frequently Asked Questions
- Conclusion
- Disclaimer
- Article Citation
What is CMC arthritis and why does it hurt?
CMC arthritis affects the joint at the base of your thumb. CMC stands for carpometacarpal. This is the place where your thumb bone meets the bones in your wrist. When you have arthritis there, the smooth cushion between the bones wears away. This causes pain, stiffness, and swelling.
You may be wondering why this matters. This joint is one of the most important joints in your hand. It lets you pinch, grip, and move your thumb in many directions. When it hurts, even small tasks become hard.
What did the study do?
According to this study published in the Brazilian Journal of Orthopedics, researchers followed 45 patients who had thumb surgery. These patients had 53 thumbs treated in total. Some people had surgery on both thumbs. The group included 38 women and 7 men. Their average age was about 63 years old.
The surgery involved removing the damaged joint and placing a small implant made of a material called pyrocarbon. This material is designed to act like the natural joint. The implant does not need cement to hold it in place. It is called an Ascension implant.
Let us look closer. The doctors wanted to see how well the patients did after surgery. They checked several things:
- How much pain the patients felt
- How well they could move their thumb
- How much the surgery improved their quality of life
- Whether there were any problems after surgery
The doctors used special tests and questionnaires to measure these things. They followed the patients for an average of 42 months. That is about three and a half years.
What were the results after surgery?
Research shows that the results were very good for most patients. Here is where it gets interesting.
Pain levels dropped dramatically
The doctors used something called a visual analog scale to measure pain. This is a simple scale where you point to a number from 1 to 10. A 1 means almost no pain. A 10 means the worst pain you can imagine. After surgery, the average pain score was just 1.37. Most patients had very little pain.
Thumb movement improved greatly
The doctors measured how much patients could move their thumbs in all directions. They compared the operated thumb to the other healthy thumb. On average, patients could move their operated thumb about 96% as well as their healthy thumb. That means they got back nearly all their movement.
| What was measured | Result |
|---|---|
| Pain score (1 to 10 scale) | 1.37 average |
| Thumb movement compared to healthy side | 95.75% average |
| Disability score (DASH questionnaire) | 9.98 average (lower is better) |
| Follow up time | 42 months average |
Quality of life improved
The researchers used a questionnaire called DASH. This stands for Disability of the Arm, Shoulder, and Hand. It asks questions about how hard it is to do everyday activities. The score goes from 0 to 100. A lower score means less disability. After surgery, the average score was 9.98. This is a very low number. It means most patients felt they could do nearly everything they wanted to do.
Were there any problems or complications?
Studies indicate that about 11% of the patients had some kind of problem after surgery. This is important to know. The most common problem was dislocation of the implant. This means the implant moved out of its proper place. Five patients had this happen.
All five patients had a second surgery to fix the problem. The doctors used a special technique called dorsal capsuloplasty. They used a piece of tissue from the back of the hand to strengthen the joint. After this second surgery, all five patients did well.
One patient had a fracture of the thumb bone. A fracture means a break in the bone. This was treated with small wires called Kirschner wires to hold the bone in place while it healed.
Even with these problems, the doctors said the surgery was still effective. Most patients did very well. The ones who had problems were successfully treated.
What does this mean for you?
If you have CMC arthritis and your thumb hurts a lot, this study gives you reason to hope. It shows that surgery with a special implant can help reduce pain and improve how you use your thumb. Most people in the study were able to return to their normal activities.
Of course, surgery is not right for everyone. Your doctor will talk with you about whether this option makes sense for you. There are also other treatments like splints, injections, and exercises that may help.
This study focused on one type of implant made of pyrocarbon. There are other types of surgery for thumb arthritis too. Your doctor can explain the different choices.
About this site: We simplify medical science for people living with thumb pain and rhizarthrosis. We use only published scientific articles to give you clear, reliable information. We translate complex research into plain language so you can make informed choices about your health. We invite you to explore more content on our site to learn about diagnosis, treatment options, and ways to manage your symptoms.
Frequently Asked Questions
How long does it take to recover from thumb implant surgery?
According to this study, patients were followed for an average of 42 months after surgery. Most patients saw good results during this time. Your doctor will give you a specific recovery plan. It usually takes several weeks to months before you can use your thumb fully again.
Will I still have pain after the surgery?
Research shows that most patients in this study had very little pain after surgery. The average pain score was just 1.37 on a scale of 1 to 10. This means pain was greatly reduced compared to before surgery.
What if the implant moves out of place?
Studies indicate that about 11% of patients had complications. The most common was dislocation of the implant. All patients who had this problem were successfully treated with a second surgery and went on to do well.
Can I use my thumb normally after healing?
According to this study, patients were able to move their thumbs nearly as well as their healthy thumb. On average, they reached about 96% of normal movement. Quality of life scores also showed great improvement, meaning patients could return to everyday activities.
Conclusion
CMC arthritis can make life difficult. Simple tasks become painful. This study shows that surgery with a pyrocarbon implant can help. Most patients felt much less pain. They could move their thumbs better. Their quality of life improved.
There is always a chance of complications with any surgery. In this study, about 11% of patients had problems. But all of them were treated successfully. The doctors concluded that this method is effective for treating thumb arthritis.
If you are struggling with thumb pain, talk to your doctor. Ask about all your options. Learn what might work best for you. You deserve to live without constant pain. You deserve to do the things you love.
Disclaimer
This article is for informational purposes only. It is not medical advice. Always talk to your doctor before making any decisions about your health or treatment. Your doctor knows your specific situation and can guide you to the best choice for you.
Article Citation
Study by: Aita, M. A., Alves, R. S., Longuino, L. F., Ferreira, C. H., Ikeuti, D. H., & Rodrigues, L. M. (2016). Measurement of quality of life among patient undergoing arthroplasty of the thumb to treat CMC arthritis. Revista Brasileira de Ortopedia.
https://doi.org/10.1016/j.rboe.2016.06.003
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