If your thumb hurts every time you grip something, open a jar, or write your name, you are not alone. Many people struggle with thumb joint pain that makes everyday tasks feel impossible. This pain often comes from a condition called rhizarthrosis, which is just a fancy name for arthritis at the base of the thumb.
Doctors studied a surgery that removes a small bone and uses your own tendon to rebuild the thumb joint. They wanted to know if this surgery really helps people feel better and use their hands more easily. They followed ten patients who had this operation and measured their pain, strength, and daily activities.
Here are three important things this study shows:
- The surgery greatly reduced thumb pain in people who tried other treatments without success.
- Patients could do more daily activities with their hands after healing.
- The surgery uses your own body tissue, so there are no artificial parts to worry about.
Key Findings at a Glance
- Ten patients with severe thumb arthritis had surgery between May and August 2005
- Pain relief was very good, with results that doctors call statistically significant
- Patients showed functional improvement in daily activities and work related tasks
- The Buck-Gramcko score showed one excellent result and three very good results
- Almost all measurements of hand strength and movement got better after surgery
What is rhizarthrosis and why does it hurt?
This joint is very important because you use it every single day. It helps you pinch, grip, and hold things. When this joint gets damaged, even simple tasks like turning a key or buttoning a shirt can hurt.
Doctors use a system called the Eaton classification to describe how bad the arthritis is. The stages go from I to IV, with IV being the most severe. The study looked at people in stages II, III, and IV.
You may be wondering why this matters. When arthritis gets to these stages, the pain does not go away with rest or medicine. That is when doctors consider surgery.
Who had this surgery?
According to this study, ten patients chose to have surgery for their thumb pain. All of them had tried other treatments first, like medicine or splints, but the pain kept coming back.
Each person had arthritis in the joint between the trapezium bone and the thumb bone. This joint has a medical name: the trapezium metacarpal joint. The metacarpal is just the long bone in your thumb.
The patients had pain that would not stop, even with treatment. This kind of pain is called refractory pain, which just means it does not respond to normal treatments.
What happens during the surgery?
Here is where it gets interesting. The surgery does two main things.
First, the surgeon removes the trapezium bone. This is the small wrist bone that is rubbing against your thumb bone and causing pain. Taking it out creates a space where the bones are no longer grinding together.
Second, the surgeon takes a piece of your own tendon and rolls it into a little ball of yarn. This tendon comes from a muscle called the long abductor of the thumb. The surgeon places this ball of tendon yarn into the space where the bone used to be.
This tendon cushion keeps the thumb bone from collapsing down into the empty space. It acts like a soft spacer. The technique is called trapeziectomy with tendon interposition. Breaking that down: trapeziectomy means removing the trapezium bone, and interposition means placing something in between.
Did the surgery help people feel better?
Research shows that the pain relief was very good. The doctors used something called a visual analogue scale to measure pain. This is just a line where patients point to show how much pain they feel.
The study found that pain relief was statistically significant. This is a science term that means the improvement was real and not just by chance. The p value was 0.005, which tells scientists the results are trustworthy.
Let us look closer at what else improved. The doctors also used a questionnaire called DASH, which stands for Disabilities of the Arm, Shoulder and Hand. This asks patients questions about daily activities.
The study found improvements in two sections of this questionnaire. Module 2 improved with a p value of 0.02. Module 3 improved with a p value of 0.022. Both of these numbers tell us the improvements were real.
The doctors also used something called the Buck-Gramcko score. This is a way to measure how well thumb surgery works. Out of the patients studied, one person had an excellent result and three people had very good results.
What improved after surgery?
According to this study, doctors measured many different types of hand movements and strength. They checked these before surgery and again after healing.
Here are the types of movements they tested:
- Palm grip: how hard you can squeeze something in your whole hand
- Pulp to pulp pinch: how hard you can pinch your thumb tip to your finger tip
- Lateral pinch: how hard you can pinch your thumb against the side of your finger
- Three point pinch: how hard you can pinch using your thumb and two fingers
- Opposition: how well you can touch your thumb to each finger
- Radial abduction: how far you can move your thumb away from your hand to the side
- Palmar abduction: how far you can lift your thumb away from your palm
Almost all of these movements got better after surgery. Only two did not show big changes: lateral pinch and abduction movements.
The study also looked at something called the migration index. This measures how much the thumb bone moved up into the space where the trapezium bone used to be. All patients had some migration, which means the thumb bone did move upward a little bit.
| What Was Measured | Did It Improve? |
|---|---|
| Pain level | Yes, significantly |
| Daily activities (DASH module 2) | Yes, significantly |
| Work tasks (DASH module 3) | Yes, significantly |
| Most strength measurements | Yes |
| Lateral pinch and abduction | No significant change |
What did the doctors conclude?
The researchers said that this surgery is relatively simple and effective. By relatively simple, they mean it does not require artificial parts or very complicated steps.
The surgery helped people in two main ways. First, it reduced pain. Second, it helped people do more with their hands in daily life.
Because the surgery uses your own tendon, there is no risk of your body rejecting an artificial implant. Your body recognizes the tissue as its own.
About this site
This website helps people like you understand medical science about thumb pain and rhizarthrosis. We read published scientific articles from medical journals and explain them in simple language. Every fact we share comes from real research done by doctors and scientists. If you are looking for clear answers about thumb arthritis, we invite you to explore more articles on this site. Knowledge can help you make better choices about your health.
Common questions about this surgery
Does this surgery work for all stages of thumb arthritis?
According to this study, the surgery was tested on patients with stages II, III, and IV arthritis using the Eaton classification. These are the more advanced stages where other treatments have not worked. The research does not tell us about stage I arthritis.
How long does it take to feel better after surgery?
The study does not give specific timelines for recovery. It measured results after patients had healed, but it does not say exactly how many weeks or months that took. This is something to ask your own doctor.
Will my thumb bone keep moving upward after surgery?
Research shows that all patients in this study had some migration of the first metacarpal bone. This means the thumb bone did move up into the space where the trapezium used to be. However, this did not stop the surgery from working well for pain relief and function.
Can I use my hand normally after this surgery?
According to this study, patients showed functional improvements in daily activities and work related tasks. Most strength measurements got better. However, every person heals differently, and your results may vary.
What does this mean for you?
If you have thumb pain that will not go away, even after trying medicine or other treatments, this research offers hope. The surgery studied here helped people feel less pain and do more with their hands.
The technique uses your own body tissue, which is comforting to know. No artificial parts means no worry about rejection or implant problems.
This study was small, with only ten patients, but the results were positive. One person had excellent results, and three had very good results. Most people felt better and could use their hands more easily.
If you are considering surgery for thumb arthritis, talk with your doctor about whether this technique might be right for you. Bring your questions. Bring this article if it helps. Your doctor can look at your specific situation and help you make the best choice.
Remember, every person is different. What worked for the people in this study may work differently for you. But knowing that this option exists can help you have better conversations with your medical team.
Important information
This article explains a scientific study in simple language. It is not medical advice. It does not replace talking to your doctor. Only a qualified medical professional can examine you, understand your specific situation, and recommend the right treatment. If you have thumb pain or questions about surgery, please speak with your healthcare provider.
Research source
This article is based on research by Junior, Walter Gomes Pinheiro; Chaim, Renan Moukbel; de Carvalho, Henrique Bella Freire; Albertoni, Walter Manna; Faloppa, Flávio; Santos, João Baptista Gomes Dos, published in Revista brasileira de ortopedia in 2011.
https://doi.org/10.1016/s2255-4971(15)30180-4
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