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How Electrothermal Catheter Therapy WorksElectrotermoterapia con cat©ter: C³mo funciona

How Electrothermal Catheter Therapy Works

Low back and leg pain is often due to damage to one or more of the disks between the vertebrae. Electrothermal therapy uses heat to change the structure of the tissue inside the disk. It doesn't relieve pain right away. Pain is reduced as the disk heals. After healing, the disk may also be stronger and more stable than before.

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The catheter is threaded through a needle into the disk.

Inside the Disk

First, a needle is inserted into the disk. Then a special catheter (a flexible wire) is threaded through the needle, so that it curves around the inside of the disk. When the catheter is in place, part of it is next to the damage in the disk.

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The catheter heats the disk, causing changes in the disk material.

Heating the Disk

Once the catheter is in place, it is heated gradually to a high temperature. The catheter is kept at that temperature for a few minutes. Then it is removed. The heat may kill nerves in the disk, preventing these nerves from causing pain. The heat may also make the disk shrink. This may mean that the disk no longer presses on nerves. The heated tissue will slowly heal over the next few months and form scar tissue. This scar tissue may:

  • Plug any leak in the disk.

  • Make the disk stronger.

Risks and Complications

The risks and complications of electrothermal catheter therapy include:

  • Bleeding

  • Spinal fluid leak

  • Infection

  • Nerve damage

  • Worsened pain after recovery

  • No improvement of pain

Date Last Reviewed: 2004-08-02T00:00:00-06:00

Date Last Modified: 2002-07-09T00:00:00-06:00

Experience optimal physical therapy techniques and compassionate patient care at Benton Franklin Orthopedic Associates and Benton Franklin Physical Therapy. Call us today at 509.586.2828 to schedule an appointment or use our online Request an Appointment form.

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