Buttock Pain After Lumbar Fusion: The Real Reasons Explained


For patients considering lumbar fusion spine surgery, one of the most common questions they have is whether or not they will experience any buttock pain after lumbar fusion. Unfortunately, there is no easy answer to this question since there are multiple factors that can contribute to post-surgical buttock (or gluteal) pain.

In this blog post, we’ll explore the real reasons why you may experience buttock pain after lumbar fusion surgery and what you can do to help manage it. By understanding more about the condition, you’ll be better equipped to make an informed decision about your treatment options. 

buttock pain after lumbar fusion
Vertebral Column

What is Lumber Fusion?

Lumbar fusion is a type of surgery that is used to treat lower back pain. The goal of the surgery is to fuse together the vertebrae in the lower back, which will then stop the movement between those vertebrae. 

Lumbar fusion can be performed using different techniques, but all of them involve using some kind of bone graft material to fuse the vertebrae together.

There are many different reasons why someone might need to have lumbar fusion surgery. The most common reason is to treat degenerative disc disease, which is when the discs in the spine start to break down and cause pain. 

Other reasons for needing lumbar fusion surgery include: 

Lumbar fusion surgery is generally considered to be safe and effective. However, as with any surgery, there are risks involved. 

The most common complications from lumbar fusion surgery include: 

  • Infection
  • Blood clots
  • Nerve damage
  • Problems with the bone graft material

There is also a small risk that the vertebrae will not fuse together correctly and that additional surgeries will be needed.

buttock pain after lumbar fusion
Blood Clott in the Vein

After having lumbar fusion surgery, it is important to follow your doctor’s instructions for recovery. 

Instructions typically include:

  • Avoiding activities that put too much strain on your back, such as lifting heavy objects or participating in contact sports
  • Most people are able to return to their normal activities within a few days.

Anatomy of Buttock

The anatomy of the buttock is complex, and there are many potential sources of pain after lumbar fusion surgery. The most common source of pain is the incision site, where the skin and underlying tissue are cut to access the spine. Other potential sources of pain include the muscles, nerves, and blood vessels in the area

  1. Muscles

The muscles in the buttock area include the gluteus maximus, medius, and minimus. These muscles work together to move the hip and thigh. The gluteus maximus is the largest muscle in the body, and it covers a large portion of the buttock. 

The gluteus medius and minimus are smaller muscles that are located under the gluteus maximus.

  1. Nerve

The sciatic nerve is a large nerve that runs from the lower back through the buttocks and down the leg. This nerve can become irritated or compressed, which can lead to pain in the buttock area.

  1. Blood Vessels

There are also a number of blood vessels in this area, including the femoral artery and vein. These vessels provide blood flow to and from the leg. If they become damaged or blocked, it can cause pain in the buttock area.

buttock pain after lumbar fusion
Structure of Pelvic Cavity

Causes of Buttock Pain after Lumber Fusion Surgery 

Buttock pain is a common symptom experienced by patients who have undergone lumbar fusion surgery. While the exact reasons for this pain are not always clear, there are several potential explanations. 

  1. First, it is possible that the buttock pain is caused by surgical trauma to the nerves in the area. This can result in inflammation and irritation of the nerves, which can lead to pain. 
  2. Additionally, it is also possible that the pain is due to the development of scar tissue around the fusion site. This scar tissue can compress and irritate nearby nerves, causing pain. 
  3. It is also possible that the buttock pain is simply a result of the healing process following surgery. As the bones and tissues heal, they may put pressure on nearby nerves, causing pain. 
  4. It is also possible to develop a condition called heterotopic ossification, which is when bone starts to grow outside of the normal bone structure. This can happen in the area around the surgery and can cause pain.
  5. Regardless of the exact cause, buttock pain after lumbar fusion surgery is a relatively common symptom that should resolve itself over time.

Prevention for Buttock Pain after Lumber Fusion

The best ways to prevent buttock pain after a lumbar fusion are: 

  • Have a healthy lifestyle
  • Maintain good posture
  • Avoid sitting or standing for long periods of time.
  • If you must sit or stand for long periods of time, take breaks often to move around and stretch.
  • Additionally, it is important to keep your back muscles strong by doing exercises that target the lower back.

Treatment Options for Buttock Pain

There are many possible treatment options for buttock pain after lumbar fusion surgery. Some patients may only require simple measures such as 

  • Over-the-counter pain medication and ice/heat therapy
  • Others may require more aggressive treatment, such as epidural steroid injections or nerve blocks
  • Physical therapy is also often recommended to help stretch and strengthen the muscles around the affected area. 
buttock pain after lumbar fusion
Physiotherapy for Buttock Pain
  • Chiropractors can correct the spine and release pressure from the muscles. They can also help you to improve your posture and reduce your pain.
  • In some cases, revision surgery may be necessary to correct any issues that are causing persistent pain.
  • They can also provide you with massage therapy. Massage therapy can be done manually or with a machine. It can help relax tight muscles and ease muscle pain.

When to see a doctor for buttock pain after lumbar fusion

If you have buttock pain after lumbar fusion surgery, it is important to see a doctor to find out the cause. The most common cause of buttock pain after lumbar fusion is hardware failure, which can occur when the metal screws or rods used to hold the bones in place loosen or break. 

Other causes of buttock pain after lumbar fusion includes infection, nerve damage, and scar tissue formation. Your doctor will perform a 

  • Physical examination and 
  • Order imaging tests to determine the cause of your pain

Treatment for buttock pain after lumbar fusion may include revision surgery to remove or replace the hardware, antibiotics for an infection, or physical therapy to stretch and strengthen the muscles around the fusion site.


Buttock pain after lumbar fusion is a common issue that affects many patients. Fortunately, there are treatments available that can address the underlying causes of buttock pain, such as: 

  • Physical therapy and 
  • Medication to reduce inflammation. 

It is important for those experiencing this type of discomfort to see their doctor for an accurate diagnosis in order to receive personalized treatment recommendations. With proper care and attention, you can find relief from your buttock pain after lumbar fusion so you can get back to doing the activities you love.

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