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Surgical Treatment

Can Partial Thumb Surgery Save Your Joint and Still Fix Your Pain?

If you have pain at the base of your thumb, you may have heard about different surgery options. One option is called partial trapeziectomy. This is a surgery where the doctor removes only part of a small bone in your thumb.

This surgery might help you keep more of your thumb joint and still reduce your pain. It is used for people with early to middle stages of thumb arthritis.

Here are three key points about this surgery:

  • The doctor removes only part of a bone called the trapezium.
  • The rest of the joint stays in place so your thumb length stays the same.
  • If this surgery does not work well, other surgeries are still possible later.

Key Findings at a Glance

  • Partial trapeziectomy is used for stages 1 to 3 of thumb arthritis according to the Eaton-Littler classification.
  • This surgery keeps your healthy nearby joints intact and maintains your thumb length.
  • Research shows that persistent instability is the most common cause of ongoing symptoms after surgery.
  • According to this study, the biggest advantage is that many other surgery options remain available if symptoms continue.
  • Studies indicate that adding a tissue graft or suspension can help improve results.

In this article:

What Is Partial Trapeziectomy?

Partial trapeziectomy is a type of thumb surgery. The doctor removes only part of a small bone in your hand called the trapezium.

What is the trapezium? The trapezium is a small bone at the base of your thumb. It sits right where your thumb connects to your wrist. When this bone rubs against other bones, it can cause pain.

The word partial means that not all of the bone is taken out. Only the part that is causing pain and rubbing is removed. The rest stays in place.

This is different from a full trapeziectomy. In a full trapeziectomy, the whole trapezium bone is removed.

Who Is This Surgery For?

According to this study, partial trapeziectomy is used for people who have thumb arthritis in stages 1 to 3. These stages are named using something called the Eaton-Littler classification.

What is the Eaton-Littler classification? This is a system doctors use to measure how severe thumb arthritis is. Stage 1 means early arthritis. Stage 3 means more damage but not the most severe. Stage 4 is the most advanced.

So if your arthritis is in the early or middle stages, this surgery might be an option for you. Your doctor will look at x-rays and your symptoms to decide.

You may be wondering why this matters. It matters because the surgery is best when some of your joint is still healthy. If the arthritis is very advanced, other surgeries may work better.

How Does the Surgery Work?

Research shows that partial trapeziectomy is only a little more complex than removing the whole trapezium bone. The surgeon makes a small cut near the base of your thumb. Then they carefully remove part of the trapezium.

After the bone piece is removed, the doctor usually adds something to fill the space. This is called interposition. It can be tissue from your own body or from a donor.

What is interposition? Interposition means placing something between two surfaces to keep them from rubbing together. In this surgery, it keeps the remaining bones from grinding and causing pain.

The doctor may also use suspension arthroplasty. This means they use a tendon or other tissue to hold the thumb in place and keep it stable.

Here is where it gets interesting. Even though the surgery is more complex, it can be done in many different ways. The doctor can choose the method that fits your situation best.

What Are the Advantages?

According to this study, there are some clear benefits to partial trapeziectomy:

  • Your nearby joint called the STT joint stays untouched if it is healthy.
  • Your thumb keeps its normal length.
  • Many other surgery options are still available if you need them later.
What is the STT joint? The STT joint is short for scaphotrapeziotrapezoidal joint. It is a joint near the base of your thumb that helps with movement. Keeping it healthy is important for hand function.

The biggest advantage is what happens if the first surgery does not solve all your pain. Because only part of the trapezium was removed, you still have options. You can have a revision surgery. This means a second surgery to fix or improve the first one.

Let us look closer. If the graft or tissue placed in your thumb gets smaller over time, the doctor can replace it with a larger one. If your thumb becomes unstable, the doctor can add suspension support. If nothing else works, a full trapeziectomy is still possible.

This gives you and your doctor flexibility.

What Are the Risks and Challenges?

Research shows that partial trapeziectomy does not always perform better than other surgeries. In terms of function and recovery time, it is similar to other options.

One risk is that your thumb might move closer to your wrist over time. This is called proximalization. It happens if the graft material gets smaller or compressed.

What is proximalization? Proximalization means your thumb bone moves closer to your wrist. This can make your thumb shorter and weaker. It usually happens when the graft material shrinks.

Studies indicate that this risk is generally minor. It is usually caused by something called implant sintering. This means the material gets compressed and smaller. But it can be fixed by putting in a larger graft.

The most common cause of ongoing pain after surgery is instability. This means your thumb joint is not held firmly in place. According to this study, this can usually be fixed with suspension arthroplasty using tissue from your own body or from a donor.

What If Pain Continues After Surgery?

One of the best things about partial trapeziectomy is that it leaves many doors open. If your pain does not go away, you have options.

The doctor can try:

  • Putting in a larger graft if the first one got smaller.
  • Adding suspension support to stabilize your thumb.
  • Using an implant or artificial joint.
  • Removing the rest of the trapezium bone if needed.

According to this study, all of these options are still possible after a partial trapeziectomy. This is not always true with other surgeries.

So even if the first surgery does not solve everything, you are not out of choices. Your doctor can work with you to find the next best step.

About This Site

This site is here to help you understand thumb pain and rhizarthrosis. We simplify medical science by reading published scientific articles and explaining them in plain language. Every piece of information comes from real research. We invite you to explore more articles and learn about your options.

Frequently Asked Questions

Does partial trapeziectomy keep my thumb longer than other surgeries?

Yes. According to this study, partial trapeziectomy helps maintain the length of your thumb because only part of the bone is removed. The rest of the joint stays in place.

Can I have another surgery if this one does not work?

Yes. Research shows that partial trapeziectomy leaves many options open. You can have a revision surgery with a larger graft, suspension support, an implant, or a full trapeziectomy if needed.

What causes pain to continue after partial trapeziectomy?

Studies indicate that the most common cause of ongoing symptoms is instability. This means your thumb is not held firmly enough. It can usually be fixed with suspension arthroplasty.

Is this surgery better than removing the whole trapezium bone?

According to this study, partial trapeziectomy has not proven to be better in terms of function or recovery time. But it does offer more options for revision surgery if symptoms continue.

Conclusion

Partial trapeziectomy is a surgery option if you have early to middle stage thumb arthritis. It removes only part of the trapezium bone and tries to keep the rest of your joint healthy.

The biggest benefit is flexibility. If the surgery does not solve all your pain, many other options are still available. Your doctor can try a larger graft, add suspension support, use an implant, or remove the rest of the bone.

This surgery may not work faster or better than other options. But it does give you and your doctor more choices down the road.

If you are considering surgery for thumb pain, talk to your doctor about whether partial trapeziectomy is right for you. Ask about your arthritis stage, your goals, and what happens if the first surgery does not solve everything.

You deserve to understand your options. You deserve to feel hopeful about relief.

Disclaimer

This article is for informational purposes only. It is not medical advice. Always talk to your doctor or healthcare provider before making decisions about surgery or treatment. Your doctor knows your situation best.

Study Reference

Zach, A.; Dikou, S.; Wassilew, G.; Lautenbach, M. (2022). Hemitrapeziectomy of the carpometacarpal joint of the thumb. Orthopade.

https://doi.org/10.1007/s00132-021-04193-7

Educational summary of published research, not medical advice. Always discuss your treatment with a qualified hand surgeon or therapist.
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