If you have thumb arthritis, you know how much it can affect your daily life. You may be wondering which surgery might help you the most. This article explains a study that compared three different operations for thumb arthritis. Researchers wanted to find out which one gave the best results for pain, movement, and strength.
Key Findings at a Glance
- Research shows that all three surgery types helped reduce thumb pain and improve movement.
- Silicone spacers had frequent problems including shifting, breaking, and causing inflammation.
- The anchovy procedure with ligamentoplasty gave the best results for hand strength.
- 85 patients received 98 operations, with 52 patients reviewed after an average of 5 years.
- An independent observer reviewed the results to ensure fairness.
In this article:
- What is thumb arthritis and why does it need surgery?
- What are the three surgeries doctors compared?
- How did the study work?
- What did researchers find about pain and movement?
- Which surgery helped strength the most?
- What problems happened with silicone spacers?
- Frequently Asked Questions
- What does this mean for you?
- Important disclaimer
- Scientific source
What is thumb arthritis and why does it need surgery?
Thumb arthritis is also called rhizarthrosis. It happens when the joint at the base of your thumb wears down. This joint is called the trapezometacarpal joint. It is the place where your thumb meets your wrist.
When other treatments do not work, surgery can help. Doctors remove some or all of the damaged bone. Then they fill the space with something else. This can help reduce pain and let you use your thumb again.
You may be wondering why there are different types of surgery. Let us look closer at the three methods doctors studied.
What are the three surgeries doctors compared?
According to this study, doctors tested three different ways to fix thumb arthritis.
Surgery one: Partial trapezectomy with Ashworth Blatt interposition
In this surgery, doctors remove only part of the trapezium bone. The trapezium is one of the small bones in your wrist at the base of your thumb. After removing part of the bone, doctors place tissue in the space. This tissue acts like a cushion. The Ashworth Blatt method is a specific way of doing this.
Surgery two: Total trapezectomy with Swanson spacer
This surgery removes the entire trapezium bone. Then doctors put in a small piece made of silicone. Silicone is a soft, rubbery material. This spacer is supposed to keep the bones apart and let your thumb move smoothly.
Surgery three: Total trapezectomy with anchovy procedure
In this surgery, doctors also remove the whole trapezium bone. But instead of using silicone, they fold a piece of your own tendon into the space. A tendon is a strong cord that connects muscles to bones. This folded tendon is called an anchovy because it looks a bit like a rolled up fish. Doctors also do a ligamentoplasty, which means they rebuild or strengthen the ligaments. Ligaments are bands that hold bones together.
Here is where it gets interesting. Each surgery has different benefits and risks.
How did the study work?
Research shows that 85 patients received treatment in this study. These patients had 98 operations in total. Some people had surgery on both thumbs.
After the surgery, doctors checked on the patients. They looked at how the patients were doing after an average of 5 years. That is a long time. It helps show which surgeries work well over many years.
Out of the 98 operations, doctors were able to review 62 of them closely. That means 52 patients came back for follow up. An independent observer looked at the results. This observer did not do the surgeries. This helps make the study fair and honest.
Doctors measured three important things:
- Pain levels
- How much the thumb could move
- How strong the hand was
What did researchers find about pain and movement?
According to this study, all three surgery types helped with pain. Patients felt better after each kind of operation. This is good news. It means that no matter which surgery you have, you can expect less pain.
All three surgeries also helped with mobility. Mobility means how much you can move your thumb. Patients could move their thumbs better after surgery. This makes everyday tasks easier. You can hold a cup, turn a key, or button your shirt more easily.
You may be wondering why doctors do not just pick one surgery if they all help pain and movement. The answer is that strength is different.
Which surgery helped strength the most?
Studies indicate that the anchovy procedure gave the best results for strength. This is the surgery where doctors remove the trapezium bone and fold your own tendon into the space. They also rebuild the ligaments.
Strength matters a lot in daily life. You need strength to open jars, carry bags, or hold tools. The anchovy procedure with ligamentoplasty helped patients get more of their strength back.
The other two surgeries also helped with strength, but not as much as the anchovy method.
What problems happened with silicone spacers?
Here is where it gets concerning. Research shows that silicone spacers had frequent problems. These problems happened often.
The study found three main issues with the Swanson spacer:
- Subluxation: The spacer shifted out of place. Your bones need to line up correctly. When the spacer moves, it does not work well.
- Fragmentation: The spacer broke into pieces. Silicone can wear down or crack over time.
- Silicone synovitis: This is inflammation caused by tiny silicone particles. When the spacer breaks down, small pieces can irritate the tissue around your joint. This causes swelling and pain.
These problems mean that the silicone spacer may not be the best choice for many patients. Other methods may work better over time.
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. We want you to have clear, honest information so you can talk with your doctor and make good choices. Feel free to explore more articles on our site to learn about other treatments and research findings.
Frequently Asked Questions
Which thumb arthritis surgery is best?
According to this study, all three surgeries helped with pain and movement. The anchovy procedure with ligamentoplasty gave the best results for hand strength. Silicone spacers had more problems like shifting and breaking.
What is the anchovy procedure?
The anchovy procedure removes the damaged trapezium bone at the base of your thumb. Doctors then roll up a piece of your own tendon and place it in the space. They also rebuild the ligaments to make your thumb stronger and more stable.
What went wrong with silicone spacers?
Research shows that silicone spacers frequently shifted out of place, broke into pieces, or caused inflammation. Small silicone particles irritated the tissue around the joint, leading to swelling and pain.
How long did patients feel better after surgery?
Doctors checked on patients after an average of 5 years. This means the benefits of surgery lasted a long time. All three surgeries continued to help with pain and movement after many years.
What does this mean for you?
If you are thinking about surgery for thumb arthritis, this research gives you useful information. All three surgery types can help reduce your pain and improve how much you can move your thumb. That is encouraging.
But if hand strength is important to you, the anchovy procedure with ligamentoplasty may be your best choice. This method uses your own tissue and rebuilds the supporting structures in your thumb.
Silicone spacers had more problems over time. You may want to talk with your doctor about other options.
Remember that every person is different. Your doctor can help you choose the surgery that fits your needs best. Bring this information to your appointment. Ask questions. Together, you can make a plan that helps you feel better and use your hand more easily.
Important disclaimer
This article is for information only. It is not medical advice. It does not replace talking with your doctor. Every person and every case of thumb arthritis is different. Your doctor knows your health history and can guide you to the right treatment. Always talk with a qualified healthcare professional before making any decisions about surgery or treatment.
Scientific source
This article is based on research by Foucher, G., Lanzetta, M., and Van Overstraeten, L., published in Chirurgie in 1993.
Read the original study here:
https://www.ncbi.nlm.nih.gov/pubmed/7729210
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