If you are living with thumb pain from rhizarthrosis, you may be wondering what happens after surgery. You might worry about losing strength or dealing with pain during recovery. A study from 2019 brings hopeful news. Research shows that imagining hand movements can actually help your thumb heal faster and hurt less after surgery.
In this article, we will look at how something called motor imagery training can speed up your recovery. We will explain what happened in this study and what it means for you.
Key Findings at a Glance
- Patients who practiced imagining hand movements for at least 55% of scheduled exercises recovered faster after thumb surgery
- Imagining movements helped reduce pain and improve thumb function even while the hand was immobilized in a cast or splint
- Brain scans showed that mental practice changed how the brain controls movement, making it more efficient
- Patients who did more mental exercises had less brain activity in movement planning areas, which means their brains worked smarter, not harder
- Pain levels were connected to activity in the brain’s pain centers, especially a part called the insular cortex
In This Article
What Is Rhizarthrosis and Why Does It Hurt?
When you have rhizarthrosis, simple tasks become difficult. Turning a key or opening a jar can bring sharp pain. Over time, the joint at the base of your thumb breaks down. The cartilage that cushions the bones wears away.
Many people with this condition eventually need surgery. After surgery, your hand needs to stay still in a cast or splint. This is called immobilization. While it helps the surgical site heal, staying still for weeks can make your muscles weak and stiff.
You may be wondering why this matters. The longer your hand stays still, the harder it can be to get movement back. That is where motor imagery training comes in.
What Is Motor Imagery Training?
Think of it like this. When you close your eyes and imagine throwing a ball, your brain lights up in almost the same way as when you really throw a ball. The same brain areas turn on. The same signals start to fire. Your muscles do not move, but your brain is practicing.
Athletes use this technique all the time. A basketball player might imagine shooting free throws. A pianist might imagine playing scales. According to this study, people recovering from hand surgery can use the same method.
Here is where it gets interesting. Even though your hand is wrapped up and cannot move, your brain can still practice. This practice can help you heal faster and feel less pain.
What Did This Study Do?
Researchers studied twenty-two patients who had rhizarthrosis. All of these patients had surgery on their thumbs. Before surgery, each patient took tests to measure their pain and how well they could move their thumb. The researchers also took pictures of their brains using a special scanner called fMRI.
After surgery, all patients had their hands immobilized. That means the hand was kept still in a cast or brace. During this time, patients were given a program of motor imagery exercises. They were told to imagine moving their thumb and fingers in specific ways.
Let us look closer. Some patients did the exercises very often. Others did not practice as much. The researchers split the patients into two groups. One group had high compliance. That means they followed the exercise plan at least 55% of the time. On average, this group did 84% of their scheduled exercises. The researchers called this group T+.
The other group had low compliance. They only did about 20% of their exercises. This group was called T-.
After recovery, patients were tested again. They measured pain, movement ability, and brain activity one more time.
What Did Researchers Find?
Research shows that patients who practiced motor imagery more often healed better. The T+ group, who imagined movements at least 84% of the time, had less pain after surgery. They also got their thumb movement back faster. Their recovery was smoother and quicker.
The T- group, who only practiced 20% of the time, did not recover as well. They had more pain. Their movement came back more slowly. The difference was clear.
According to this study, imagining hand movements counteracts the bad effects of keeping your hand still. Immobilization is necessary after surgery, but it can make muscles weak and stiff. Motor imagery helps fight against that.
| Patient Group | Average Exercise Compliance | Recovery Outcome |
|---|---|---|
| T+ (High Compliance) | 84% | Less pain, faster motor recovery |
| T- (Low Compliance) | 20% | More pain, slower motor recovery |
This is encouraging news. It means you can take an active role in your recovery even when your hand is in a cast. You do not have to wait passively. Your mind can help your body heal.
How Did Imagining Movements Change the Brain?
The brain scans showed something fascinating. After surgery, the T+ group had decreased brain activation in two important areas. These areas are called the premotor cortex and the supplementary motor area, or SMA. Both are parts of the brain that plan and control movement.
You might think less brain activity is a bad thing. Actually, it is the opposite. When the brain becomes more efficient, it does not need to work as hard. Think of it like learning to ride a bike. At first, you have to think about every little movement. Your brain works overtime. Once you learn, riding feels easy and automatic. Your brain uses less effort.
The T+ patients showed this same pattern. Their brains became more efficient at controlling thumb movements. They needed less brain power to do the same task. This is a sign of healthy brain plasticity.
Meanwhile, the T- group showed the opposite. Their brains had increased activity in these same areas. This suggests their brains were working harder and less efficiently. They had not adapted as well.
Here is where it gets interesting. The study also found a connection between pain and brain activity. In the post surgery session, patients who felt more pain showed more activity in a brain region called the insular cortex. This area is part of the pain matrix, a network of brain regions that process pain signals.
This finding helps explain why motor imagery might reduce pain. By improving how the brain controls movement, motor imagery may also calm down the pain networks in the brain.
Frequently Asked Questions
Do I have to move my hand for motor imagery to work?
No, you do not move your hand at all. Motor imagery means imagining the movement in your mind. Your hand stays completely still. This makes it perfect for recovery when your hand is in a cast or splint. Your brain does the practice work.
How often should I practice imagining hand movements?
According to this study, patients who practiced at least 55% of their scheduled exercises saw better results. The high compliance group did about 84% of their exercises. The more you practice, the better your recovery may be. Talk to your doctor or therapist about how often you should practice.
Will motor imagery training work for everyone with thumb surgery?
This study shows that motor imagery helped patients with rhizarthrosis after surgery. It may not work the same way for every person or every condition. Your results may vary. Always follow your doctor’s advice and ask if motor imagery training is right for you.
Can motor imagery replace physical therapy?
No, motor imagery is a tool that works alongside other treatments. It is not a replacement for physical therapy, medication, or other care your doctor recommends. Think of it as an extra tool that helps your brain prepare for physical movement.
What Does This Mean for You?
If you are facing thumb surgery for rhizarthrosis, this research offers hope. You do not have to feel helpless during recovery. Studies indicate that imagining hand movements can speed healing, reduce pain, and help your brain adapt.
The key is consistency. Practicing your mental exercises regularly makes a real difference. Your brain is powerful. When you imagine moving your thumb, your brain practices the same patterns it will use when you really move.
Talk to your surgeon or hand therapist about adding motor imagery training to your recovery plan. Ask how often you should practice. Get clear instructions on which movements to imagine. Then commit to doing the exercises as often as you can.
Your recovery is a partnership between you and your medical team. Motor imagery gives you a way to actively participate, even when your hand must stay still.
About This Site
This website simplifies medical science for people dealing with thumb pain and rhizarthrosis. We read published scientific articles and explain them in plain language. Every piece of information comes from real research. We do not make up facts or give personal opinions. Our goal is to help you understand what science says about your condition. Feel free to explore more articles and learn what research can teach you about thumb health.
Important Disclaimer
This article is for educational purposes only. It is not medical advice. It does not replace the guidance of your doctor or healthcare provider. Every person is different. What works for one person may not work for another. Always talk to your doctor before starting any new treatment or exercise program. If you have questions about your thumb pain, surgery, or recovery, ask a qualified medical professional.
Scientific Source
This article is based on research published by Gandola, M., Zapparoli, L., Saetta, G., De Santis, A., Zerbi, A., Banfi, G., Sansone, V., Bruno, M., and Paulesu, E. in Neuroimage Clinical in 2019.
Read the full study here:
https://doi.org/10.1016/j.nicl.2019.101838
