Spinal Fusion Hardware Removal: When Screws Have to Come Out

Surgeons remove spinal hardware if it causes persistent pain, nerve irritation, or hardware problems. Your surgeon may also recommend removal surgery when loose, broken, or infected screws interfere with your recovery. Before a second surgery, your surgeon confirms that the spine fusion has healed and your spine is stable.

At Total Orthopedics & Sports Medicine, our spine specialists evaluate your symptoms, imaging results, and fusion site to determine if you need revision surgery. We examine the screws, rods, and fusion site to identify the source of your pain or discomfort. Based on these findings, our specialists develop a revision plan that may require hardware removal or new hardware to restore spinal support. Call 855-321-6784 to book an appointment.

When Does Spinal Fusion Hardware Need to Be Removed?

Your surgeon may recommend spinal hardware removal if you have persistent pain or severe complications after the fusion has fully healed. In such cases, removing painful screws or rods may reduce discomfort and improve daily function. However, your surgeon first confirms that your spine is stable before revision surgery.

In fact, research published in the Journal of Orthopaedic Surgery and Research evaluated 102 patients after successful lumbar fusion. Patients who underwent removal showed significant improvements in physical function and bodily pain after surgery. They also reported better overall quality-of-life scores.

In addition, your surgeon may recommend removal surgery for the problem with the implants or the fusion site, including:

• Deep Infection: Infection develops around the surgical site or spine hardware.
• Hardware Failure: Screws, rods, or plates break, shift, or loosen.
• Tissue Irritation: Hardware presses against nearby tissue, causing discomfort.
• Failed Fusion: Two vertebrae fail to fuse and may require revision.

Do Spinal Fusion Screws Normally Stay In Permanently?

Yes, surgeons usually keep spinal fusion screws in place for life once the bones have fused successfully. The screws and rods hold the vertebrae in position while the fusion develops. They provide stability by eliminating motion between the treated vertebrae as the bones gradually fuse together.

Once this process is complete, spine hardware usually does not require removal unless it causes a problem. For this reason, surgeons do not routinely remove screws after a successful fusion. However, persistent pain, infection, or loose hardware may require surgical removal despite a successful fusion. In these cases, your surgeon may recommend a second surgery after reviewing your symptoms and fusion site.

What Symptoms Can Point to a Spinal Hardware Problem?

Sharp or burning pain, worsening discomfort, and swelling or tenderness near the surgical site can signal a hardware problem. Numbness or tingling in your arms or legs and new muscle weakness may also develop if the hardware irritates nearby nerves. These changes may indicate hardware failure, nerve injury, or another complication that requires further evaluation.

Other nerve-related, mechanical, or visible changes can also signal a problem with spinal instrumentation, such as:

• Returning Nerve Pain: Previous nerve symptoms return after a period of relief.
• Unusual Spinal Noises: Clicking, popping, or grinding occur with motion.
• Spinal Instability: Your back loses support, or an upright posture becomes difficult.
• Visible Changes: A new bump or change in spinal shape develops near the surgical area.

Moreover, you should seek immediate medical care if you develop sudden weakness in your arms or legs. Numbness around your groin or inner thighs also requires urgent evaluation. Beyond this, you should seek prompt care if a high fever occurs with severe pain or drainage from the incision area.

Can Loose Spinal Screws Cause Back or Nerve Pain?

Yes, loose screws can trigger back or nerve pain when they reduce spinal stability or irritate nearby tissue. As the screws loosen, excess motion can place greater stress on the surrounding joints and muscles. This stress may cause persistent back pain, especially near the previous spinal surgery site.

A loose screw can also shift toward a nerve root and place pressure on the nerve. This irritation may cause sharp or shooting pain that radiates into your arms or legs. If these symptoms persist, your surgeon may assess the hardware and determine if revision surgery is needed.

Does Failed Spinal Fusion Always Require Screw Removal?

No, a failed fusion does not always require removal of spinal hardware. Your surgeon may leave the hardware in place if it causes no pain, infection, or nerve irritation. This approach may still apply even with pseudarthrosis (failure of the bones to fuse completely) if the existing spinal instrumentation provides adequate support.

During complex revision surgery, your surgeon may add larger screws, new rods, or other fixation to strengthen the failed fusion. In some cases, the existing hardware can work with new hardware to provide better spinal stability. This approach allows your surgeon to repair the failed fusion without removing stable implants.

Can an Infected Spinal Implant Need to Be Removed?

Yes, an infected spinal implant may require removal if the infection becomes chronic or the hardware fails. A 2024 Clinical Infectious Diseases review reports that surgeons can often retain stable implants in early infections after surgical debridement and at least 12 weeks of antibiotics. In contrast, chronic infections generally require implant removal or revision, especially when the hardware has failed.

Your surgeon will also recommend hardware removal under the following conditions during revision surgery:

• Persistent Bacteria: Recurrent infection despite appropriate debridement and antimicrobial treatment.
• Failed Surgical Cleaning: Repeated debridement does not clear the infection.
• Loose Hardware: Infected screws loosen and can no longer provide stable fixation.

The condition of the hardware also guides the revision approach. For example, an NIH review found that surgeons can often preserve stable implants after early diagnosis and thorough debridement. However, chronic infection with loose pedicle screws may require screw removal and debridement of the affected bone. Surgeons may then use larger replacement screws when the spine still requires fixation.

How Does Your Surgeon Check Spinal Fusion Hardware?

Your surgeon may perform a detailed physical examination and review your surgical history. During the examination, they assess your strength, sensation, reflexes, and areas of tenderness to identify potential nerve or hardware issues. If your symptoms suggest a complication, your surgeon may order imaging tests to examine the fusion site and surrounding structures.

Here are the main imaging tests your surgeon may use to check hardware in the cervical, lumbar, or thoracic spine:

1. X-Rays

Doctors may order X-rays to check the position and condition of screws, rods, and cages. These images can show loose, broken, or shifted hardware after spinal surgery. Your surgeon may also order flexion-extension X-rays, which capture your spine as you bend forward and backward. These images can detect excess motion that may suggest instability at the fusion site.

2. CT Scan

If X-rays do not provide enough detail, your surgeon may recommend a CT scan for a closer view of the fusion. This scan provides detailed images of the bone and spinal instrumentation. It can show screw loosening, hardware failure, or changes around the implants. Your surgeon can also assess whether solid bone has formed between the fused vertebrae.

3. MRI Scan

An MRI may be recommended when persistent symptoms suggest a nerve or soft-tissue problem. This scan provides detailed images of the spinal cord, nerve roots, discs, and surrounding tissues. Your surgeon can use these images to identify nerve compression or other sources of persistent symptoms. These findings can guide the decision about revision surgery or further treatment.

Important Note: During your preoperative assessment, your surgical team may evaluate lung function and overall health to assess anesthesia safety.

Can Hardware Come Out Before Your Fusion Is Solid?

No, spinal hardware usually should not come out before the fusion becomes solid. Screws and rods provide spinal stability while the bone graft grows between the vertebrae. Removing this support too early can allow excess motion and interfere with successful fusion.

However, early revision may still be necessary if infection, hardware failure, or nerve irritation develops. In these cases, your surgeon evaluates the fusion and determines whether the existing implants can remain in place safely. This assessment guides the surgical approach when the bones have not fused completely.

What Happens During Spinal Hardware Removal Surgery?

During the procedure, your surgeon usually reopens the original incision to reach the spinal implants. Then they remove loose or damaged hardware and may place a bone graft into the previous screw holes. If your spine still requires support, they may insert new screws at a different angle or use additional fixation.

Before the removal process, your surgeon reviews imaging to confirm the condition of the fusion and hardware. A solid fusion may allow safe removal without replacement, while an incomplete fusion may require new fixation. This evaluation helps keep the spine stable after the old hardware comes out.

Once your surgeon confirms the fusion is stable, they may proceed with hardware removal. This procedure may take about one to three hours, depending on the amount of hardware and the complexity of the revision. In selected cases, surgeons may use a small incision or minimally invasive approach to reduce tissue disruption.

When Do You Need New Screws During Revision Surgery?

You may need new screws during revision surgery when the original hardware has loosened, broken, or shifted from its initial placement. Hardware problems can develop when the original fusion does not heal properly or when the bone cannot provide sufficient support. In these cases, replacing the damaged screws can restore stronger fixation.

Your surgeon may also choose wider or longer screws when the original screw tracks have widened and can no longer secure the hardware. These replacement screws provide a stronger grip in the surrounding bone and improve fixation. This added support helps keep the spine stable while the revised fusion heals.

What Materials Are Used for Spinal Implants?

Spinal implants are commonly made from titanium alloys or stainless steel. Titanium offers strong corrosion resistance and works well with surrounding bone and tissue. In fact, a Neurospine review identified titanium alloy (Ti6Al4V) as one of the most widely used materials for modern spinal implants.

The same review found that titanium alloys are preferred metals in orthopedic surgery due to their high fracture resistance and biocompatibility. Stainless steel has also been used for spinal screws and rods. However, your surgeon selects the material based on your bone quality and revision needs.

What Supports Your Spine After Hardware Removal?

After hardware removal, the healed fusion provides the main structural support for your spine. Once the vertebrae have fused into solid bone, the fusion can maintain stability without screws and rods. For this reason, your surgeon confirms solid bone healing before removing the implants.

Your muscles and supporting tissues also contribute to spinal support after surgery. For this reason, your surgeon may recommend guided rehabilitation after the revision. Rehabilitation can strengthen your core and back muscles. It can also correct muscle imbalances that developed before or after surgery.

During early recovery, your surgeon may recommend temporary support while the surgical area heals. In rare cases, a brace may provide additional protection during movement, depending on the fusion level and your overall general health. Your surgeon can then adjust activity and rehabilitation as your spine recovers.

Will Fusion Implant Removal Relieve Your Pain?

Yes, fusion implant removal can reduce pain for many patients. However, the procedure does not provide complete pain relief for every patient. In a NIH study of 25 patients with thoracolumbar instrumentation, 80% experienced some reduction in back pain. The remaining 20% of patients reported no improvement after removal.

Here are the key pain outcomes reported in the study:

• Before Removal: Mean VAS pain score was 8.08 out of 10.
• After Removal: Mean VAS pain score decreased to 3.36 out of 10.
• Pain Reduction: Mean VAS improvement was 4.72 points.

Overall, the study found a substantial reduction in average pain scores after implant removal. However, the researchers also reported that none of the patients achieved complete pain relief after surgery. For this reason, your surgeon should evaluate other possible sources of pain before recommending the procedure.

What Is Recovery Like After Spinal Hardware Removal?

Recovery after spinal hardware removal often takes a few weeks to a few months, depending on the extent of your revision. Your hospital stay may last one to two days after surgery. During this time, your care team monitors vital signs, including your blood pressure and heart rate. They also assess your pain, movement, and incision before you return home.

Moreover, compression stockings may reduce the risk of blood clots during early recovery. Before discharge, your surgeon provides instructions for pain management, incision care, and safe activity at home. Once you return home, the following recovery instructions can protect the surgical area and support healing:

1. Pain Management

Your surgeon may prescribe pain relief medication for discomfort around the incision. You can also apply a wrapped ice pack for short periods to reduce pain and swelling. As your discomfort improves, follow your surgeon’s instructions to reduce medication use.

2. Wound Care

Keep the incision clean and dry while the skin heals. Your surgeon will also ask you to watch for signs of infection, such as:

• Increasing Redness
• Persistent Swelling
• Wound Drainage
• Fever or Chills

During your follow-up appointments, your surgeon will examine the incision and monitor healing. Stitches or staples are usually removed about 10 to 14 days after surgery. Your surgeon will also tell you when it is safe to resume normal activities.

3. Early Movement

Your surgeon may recommend short walks soon after surgery to improve circulation and reduce stiffness. As your strength improves, you can gradually increase your walking based on your recovery progress. Frequent gentle movement can also reduce prolonged sitting while your back heals.

4. Activity Restrictions

During the first few weeks, avoid heavy lifting, strenuous bending, and other activities that place excess stress on your back. Your surgeon may also restrict lifting to about 10 pounds during early recovery. Moreover, do not drive while taking narcotic pain medication, and wait for medical clearance before returning to more demanding activities.

Get a Second Opinion From Our Spine Specialists Before Implant Removal!

You had spinal fusion to improve stability, but ongoing pain can still affect your daily life. You may struggle with walking, sitting, sleeping, or completing normal activities. In such cases, a second opinion can help you decide if further treatment is appropriate.

At Total Orthopedics & Sports Medicine, our spine specialists review your previous surgery, current symptoms, and imaging to guide your care. We guide you through treatment options such as nonsurgical care, hardware removal or exchange, or revision fusion based on your condition. If needed, we can adjust your rehabilitation and pain management plan as your recovery progresses. Call 855-321-6784 or visit one of our New York or New Jersey locations to schedule a spine evaluation.

FAQs