Spinal Cord Stimulator Lead Migration Lawsuits Over Failures and Fractures

In this post, we will explain what spinal cord stimulator leads are, how they are implanted, why they may migrate, what symptoms individuals may experience and how frequently this problem has been reported in medical research.

We will also examine recalls and safety reports involving spinal cord stimulator leads, as well as when a lead migration injury may provide grounds for a spinal cord stimulator lawsuit against the device manufacturer.

What Are Spinal Cord Stimulator Leads?

Spinal cord stimulator leads are thin, insulated wires placed in the epidural space near the spinal cord to deliver electrical impulses that help interrupt pain signals.

The leads connect to an implanted pulse generator and contain electrodes positioned near the nerves associated with a patient’s pain. Because spinal cord stimulation depends on precise placement, the leads must remain intact, securely anchored and properly positioned. If a lead migrates, fractures or becomes disconnected, the device may stop providing pain relief or cause unwanted stimulation, electrical shocks or new pain.

Percutaneous and Paddle Spinal Cord Stimulator Leads

Spinal cord stimulator systems generally use either percutaneous or paddle leads.

• Percutaneous leads are thin, cylindrical wires inserted through a needle under fluoroscopic guidance. They are commonly used during SCS trials and may also be permanently implanted. Their smaller size allows for less invasive placement, but they may be more susceptible to movement or anchor failure.
• Paddle leads are wider, flat leads that are surgically positioned over the spinal cord, typically through a laminotomy or laminectomy. Their larger surface may provide greater stability, but they can still migrate, fracture, rotate or develop connection problems that require revision surgery.

What Is Spinal Cord Stimulator Lead Migration?

Spinal cord stimulator lead migration occurs when an implanted lead moves away from its original position after surgery.

FDA adverse event reports involving spinal cord stimulators have described leads that shifted, fractured or stopped providing effective stimulation after implantation. In some cases, recipients reported that the device no longer relieved their pain, while others experienced electrical shocks, burning sensations or stimulation in areas that were not originally being treated.

Lead migration may be identified shortly after implantation or after the device has been in place for months or years.

For purposes of a spinal cord stimulator lawsuit, the key question is not simply whether the lead moved. The investigation focuses on why it moved, including whether the lead, anchor or another component failed to perform as intended.

Why Do Spinal Cord Stimulator Leads Migrate?

There is no single explanation for every case of lead migration. Manufacturers may argue that movement can result from the implantation procedure, physical activity or other patient specific factors. However, spinal cord stimulator lawsuits may allege that the problem was caused or contributed to by a defective lead, anchor, connector or other component.

Issues that may be investigated in a lead migration claim include:

• Anchor failure;
• Improper or inadequate anchoring;
• Lead fracture;
• Excessive stress at the anchor site;
• Connector failure;
• Movement of other implanted components;
• Manufacturing defects;
• Changes in lead design;
• And inadequate testing of how the lead performs after implantation.

Recent recalls and FDA adverse event reports involving certain spinal cord stimulator leads have also identified problems involving lead fractures, high impedance, inadequate stimulation and failures near the anchor site.

2026 Boston Scientific Lead Recall Over Fracture Risks

The FDA announced a Boston Scientific Infinion CX lead recall on September 3, 2026, after the manufacturer identified mechanical stress at the anchor site that may cause high impedance or lead fractures.

As of May 27, Boston Scientific had reported 1,081 serious injuries and no deaths associated with the problem. The recalled leads may experience:

• High impedance
• Lead fractures
• Inadequate stimulation
• Loss of effective pain relief
• Lead removal or replacement surgery

The FDA identified the recall as the most serious type. Boston Scientific has instructed healthcare providers to stop using and distributing unused Infinion CX leads and return them to the company.

How Common Is Spinal Cord Stimulator Lead Migration?

Medical literature has reported spinal cord stimulator lead migration rates ranging from about 10% to more than 20%, depending on the type of device, study design and whether researchers counted all movement or only migration that affected treatment. One large meta analysis found lead migration in approximately 1 out of every 10 spinal cord stimulator patients, while earlier reviews reported rates above 20%.

Studies and reviews have reported:

• Approximately 10%: A 2023 systematic review and proportional meta analysis of prospective studies and randomized clinical trials found an overall lead migration rate of approximately 10%. The authors noted that most reported migrations were clinically significant and often resulted in revision or removal. (Neuromodulation)
• 13.2%: A 20 year literature review by Cameron identified lead migration in approximately 13.2% of spinal cord stimulation cases, making it the most commonly reported device complication in that review. (Journal of Neurosurgery)
• 20% to 22.6%: Later literature reviews reported lead migration rates ranging from approximately 20% to 22.6%, again identifying migration as one of the most frequent mechanical problems associated with spinal cord stimulation. (American Society of Regional Anesthesia and Pain Medicine)

The reported percentages vary because researchers have used different definitions of lead migration and different follow up periods. However, the studies consistently show that lead movement has been a recurring problem with spinal cord stimulation and, in a measurable number of cases, has resulted in revision surgery or device removal.

Spinal Cord Stimulator Lead Migration Stories

FDA MAUDE reports provide real world examples of what has been reported when spinal cord stimulator leads move out of position. These reports do not establish that the device caused the complications, but they show that lead migration has been reported in connection with loss of pain relief, infections and surgeries to replace implanted SCS components.

Paddle Lead Migrated Out of Epidural Space, Followed by Infection and Replacement Surgery

One FDA report described a patient whose Boston Scientific CoverEdge paddle lead migrated completely out of the epidural space, causing a loss of therapy coverage.

When the physician attempted to reposition the paddle, fluid was discovered near the implant site and testing identified a Staphylococcus aureus infection. The patient was treated with antibiotics and underwent surgery to remove and replace both the paddle lead and implantable pulse generator. (FDA MAUDE Report 3006630150-2026-04258)

Imaging Confirmed Lead Migration Before Entire SCS System Was Replaced

Another FDA report involved a patient who experienced inadequate pain relief after receiving a spinal cord stimulator. Imaging subsequently confirmed that the leads had migrated, and the patient underwent surgery to replace the SCS system.

The report identified two Boston Scientific Linear 3-4 leads among the components involved, although the explanted devices were not returned for analysis and the manufacturer listed the cause as not established. (FDA MAUDE Report 3006630150-2026-04444)

Leads and Pulse Generator Migrated, Requiring SCS Replacement

Another FDA report described migration involving both the implantable pulse generator and spinal cord stimulator leads, after which the patient was no longer receiving adequate pain relief. The patient ultimately underwent another surgery to replace the SCS system.

The report identified two Boston Scientific Linear ST leads and a Clik anchor among the components involved, but the removed devices were not returned for testing and the manufacturer stated that the cause of the migration could not be established. (FDA MAUDE Report 3006630150-2026-05448)

Spinal Cord Stimulator Lead Migration Symptoms

FDA adverse event reports and allegations raised in spinal cord stimulator cases describe a range of problems after leads migrate or fracture, including:

• Loss of pain relief;
• Return or worsening of the original pain;
• Electrical shocks;
• Burning or stabbing sensations;
• Stimulation in unintended areas;
• Tingling or buzzing;
• Muscle spasms;
• Involuntary movements;
• Numbness or weakness;
• Difficulty walking;
• And the need for additional surgery.

These symptoms do not establish that a lead migrated or that the device was defective. However, when they occur along with imaging showing lead movement, abnormal device readings or a later revision procedure, they may become important evidence in a spinal cord stimulator lawsuit.

Lead Migration Injuries and Complications

The most significant lead migration cases are often those that result in more than a temporary loss of pain relief.

FDA reports and lawsuits involving spinal cord stimulators have described individuals who required reprogramming, lead replacement, revision surgery or complete removal of the implanted system due to:

• New or worsening nerve pain;
• Painful electrical shocks;
• Muscle weakness or involuntary movement;
• Lead fracture;
• Repeated device failure;
• Revision surgery;
• Permanent device removal;
• And continuing pain after the spinal cord stimulator failed.

For a product liability claim, the severity of these complications may be important when evaluating damages and determining whether the alleged lead failure caused a meaningful injury.

How Is Spinal Cord Stimulator Lead Migration Confirmed?

Lead migration is often suspected when a spinal cord stimulator suddenly stops providing the same pain relief or begins causing stimulation in an unintended area.

Doctors may review programming records, test the device and order X rays or fluoroscopic imaging to compare the current lead position with where it was originally implanted. High impedance readings may also suggest a lead fracture, disconnection or another mechanical failure.

For a spinal cord stimulator lead migration lawsuit, this imaging and device data can become important evidence showing that the lead moved, fractured or stopped functioning as intended.

Can Lead Migration Be Fixed?

Minor lead movement may sometimes be addressed through reprogramming, but reprogramming does not move the lead back into place. It only attempts to redirect stimulation using the lead’s new position.

When the lead has moved too far, fractured, pulled away from the anchor or can no longer provide effective stimulation, the patient may require another surgery.

Revision or Removal Surgery After Lead Migration

Spinal cord stimulator recipients with serious lead migration problems may require revision surgery to reposition or replace the lead, install a new anchor or replace damaged components.

In other cases, the spinal cord stimulator may need to be removed entirely, particularly when the patient experiences repeated migration, lead fracture, painful shocks, worsening pain or continued failure of the device.

These additional procedures are important in spinal cord stimulator lawsuits because they may establish the severity of the injury and increase the medical expenses, lost wages, pain and other damages associated with the claim.

Lead Migration: Product Defect or Malpractice?

Not every lead migration case is necessarily a product liability claim. A lead may move because it was improperly positioned or anchored during surgery. However, a lawsuit against the device manufacturer may be appropriate when the evidence suggests that the lead, anchor or related component failed despite proper implantation.

Evidence that may support a product defect claim includes:

• Lead fracture at or near the anchor;
• Anchor failure;
• Repeated migration after revision;
• Similar failures involving the same product;
• A recall involving the lead or anchoring system;
• Unexplained high impedance;
• Design changes following reports of failures;
• Manufacturing defects;
• Inadequate testing;
• Or failure to warn doctors about known problems.

To determine whether your lead migration was caused by a defective product or due to a medical mistake, contact our lawyers for a free consultation to discuss the details or your case.

SCS Lead Migration Recalls

Several spinal cord stimulator lead systems have been recalled over problems involving lead durability, placement or components used during implantation. While not every recall specifically involved lead migration, they show that manufacturers have previously identified defects capable of affecting how SCS leads are positioned, function or remain effective after implantation.

• 2026 Boston Scientific Infinion CX Lead Recall: The FDA classified the Infinion CX recall as Class I after Boston Scientific determined that stress at the anchor site could cause high impedance or lead fractures, potentially resulting in inadequate stimulation and the need for lead removal or replacement. The FDA identified device design as the cause.
• 2018 Medtronic Vectris Lead Kit Recall: Medtronic recalled certain Vectris trial lead kits because of a manufacturing defect involving the curved introducer needle, which could make it difficult to advance or withdraw the SCS lead during implantation.
• 2006 Medtronic 3777 and 3778 Lead Recall: Medtronic recalled lead kits after standard and compact leads were placed in the wrong packages, creating a 14 millimeter difference in electrode coverage that could affect where stimulation was delivered.

Spinal Cord Stimulator Lead Migration Lawsuits

Spinal cord stimulator lead migration lawsuits allege that manufacturers sold leads or anchoring systems that were not adequately designed or tested to remain intact and secured after implantation. Many lawsuits have raised allegations that manufacturers failed to:

• Adequately test lead durability;
• Study stress at the anchor site;
• Evaluate changes to newer lead designs;
• Identify migration and fracture risks;
• Warn doctors and patients about known failures;
• Or correct defective products after problems were reported.

Contact a Spinal Cord Stimulator Lead Migration Lawyer

Spinal cord stimulator lead migration, fractures and anchor failures can cause the device to stop working as intended, trigger painful electrical shocks and force individuals to undergo revision surgery, lead replacement or complete device removal.

Saiontz & Kirk is investigating spinal cord stimulator lead migration lawsuits for individuals who received a Boston Scientific, Abbott, Medtronic and Nevro device and experienced:

• Imaging confirmed lead migration
• Lead fracture
• Anchor failure
• Painful electrical shocks
• Loss of pain relief
• New or worsening pain
• Unwanted stimulation
• Revision surgery
• Lead replacement
• Complete device removal
• Another serious injury linked to lead failure

Call Saiontz & Kirk toll free at 1-800-522-0102 or complete the free case review form today. There are no fees or expenses unless a recovery is obtained in your case.

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