The LINX® Reflux Management System

Surgeons in the GERD and Gastrointestinal Surgery Program are the first in the area to offer a brand new, innovative device designed to treat gastroesophageal reflux disease (GERD) – the LINX® reflux management system. The LINX system is a small flexible band of interlinked titanium beads with magnetic cores designed to restore the body’s natural barrier to reflux in patients with GERD.

Surgeons who specialize in the management of gastroesophageal reflux disease (GERD) at the Medical College of Wisconsin are the first in the area to offer a brand new, innovative device designed to treat GERD. The LINX® (Torax Medical Inc., Shorewood, MN) reflux management system is a new device recently approved by the Food and Drug Administration (FDA press release).

What is it? The LINX® Reflux Management System (LINX device) consists of a series of titanium beads, each with a magnetic core, connected together with titanium wires to form a ring shape. The LINX device is surgically implanted around the lower end of the esophagus. It is used to treat gastroesophageal reflux disease (GERD) in patients who continue to have GERD symptoms despite the use of medical therapy (acid pills such as proton pump inhibitor medications) for the treatment of their reflux.

How does it work? The LINX device is implanted around the lower esophageal sphincter (a sphincter is a muscle that surrounds and closes a bodily opening) to strengthen a weak sphincter. Using the device helps to prevent the contents of the stomach from backing up into the esophagus (reflux). By restricting the flow of stomach contents into the esophagus, the patient will improve their heartburn symptoms and reflux (regurgitation) and may no longer require medicines to treat these symptoms.

Even though the LINX device helps to prevent stomach contents from flowing back into the esophagus, it does not prevent movement of food or liquids down the esophagus into the stomach. When the patient swallows, the pressure in the esophagus increases and the magnetic beads move apart on the titanium wires. As the beads move apart, the magnetic force decreases. This separation of the beads allows food or liquids to pass normally into the stomach. After the food or liquids have passed into the stomach, the magnetic beads return to the closed position.

When is it used? The LINX device is used in patients who continue to have symptoms of GERD, such as heartburn and reflux, despite maximum medical therapy (daily use of medicines such as proton pump inhibitors). It is intended to be used in patients who would also be considered candidates for anti-reflux surgery.

What will it accomplish? The LINX device will help prevent abnormal amounts of acid from the stomach moving back into the esophagus. In a clinical study of 100 patients implanted with the LINX device, 64 patients either had normal amounts of acid in the esophagus or at least a 50% improvement in the amount of acid in the esophagus. Additionally, 92 patients had improvement in their GERD symptoms, so they felt better. The clinical study also found that 93 patients were able to reduce their medicines or no longer needed to take any medicines to treat their GERD symptoms. The most common adverse events experienced by patients were difficulty swallowing. The second most common adverse event was pain.


Patients who have the LINX device should not be exposed to, or undergo, an MRI (Magnetic Resonance Imaging) in a magnet more powerful than 0.7 Tesla. Exposure to the more powerful MRI could cause serious injury to the patient and the device may be damaged (Diagnostic Imaging with the LINX® Reflux Management System).

For more information on the LINX device and whether this treatment might be right for you, contact us. Make sure you ask for a Minimally Invasive GERD and Gastrointestinal Surgeon in the MCW Division of General Surgery.

For more information on the LINX device, follow these links:

Frequently Asked Questions

How long am I in the hospital?

Most patients are discharged the same day as their procedure.

Where is the incision made?

For the LINX procedure, there are 4-5 tiny laparoscopic incisions required.  Most of these incisions are underneath the rib cage in the upper abdomen.  Most of the incisions are 5-mm (1/2 cm).  A necessary single 1-cm incision will be made.

How do I know if I qualify for surgery?

We will be happy to schedule an appointment with Dr. Gould to determine if the LINX system is the best surgical approach for you and your GERD.  If you have had any tests performed to evaluate your gastroesophageal reflux (an endoscopy, a pH study, or an esophageal manometry for example), please arrange for a copy of these records to be faxed to our office ahead of your visit.  You may choose to hand carry a copy of these records with you to your appointment as well.  At your appointment, Dr. Gould and his staff will review your history and any testing you have had done to determine if additional testing is necessary and if you are a candidate for the LINX device.

How do I get this approved by my insurance?

Once the recommendation is made to have the LINX system placed, we will obtain prior authorization for surgery.  Once submitted, your insurance company will review your case and notify us of a decision 3-4 weeks following initial submission.  (As this is a new FDA approved device, some insurance companies may at first decline to provide benefits.  We have protocols and resources in place designed to aid us in the appeal process.)

The Society of American Gastrointestinal and Endoscopic Surgeons (SAGES), whose mission is to improve quality patient care through education, research, innovation and leadership in gastrointestinal and endoscopic surgery,  just completed a safety and effectiveness analysis of the LINX Reflux Management System. On the basis of the available evidence, they concluded that “the LINX device should be an option available to patients and providers for the management of medically refractory GERD”.  Read more

What if my insurance won't pay?

Unfortunately, some insurance companies will refuse to pay for the LINX procedure even when your surgeon determines that the procedure is medically necessary and appropriate. Froedtert and the Medical College of Wisconsin have worked out a discounted, self-pay package for these patients. If this applies to you, please contact us and we will provide you with a package price.

Medical College of Wisconsin
8701 Watertown Plank Road
Milwaukee, WI 53226
(414) 955-8296
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Page Updated 08/19/2015