Intradiscal Electrothermy, IDET, is a percutaneous procedure that requires the insertion of a stylette into the disc space. This outpatient procedure is directed towards patients with symptomatic degenerative disc disease.

The IDET technique involves the insertion of a small-bore needle into the involved disc segment of a patient. General anesthesia is avoided in most patients and intravenous sedation is utilized. A catheter with a thermal tip is inserted through the needle and is coiled in the disc. The catheter tip is heated for 15 minutes (see image below), and the assembly is removed.

We have prospectively examined patient outcomes and have found the technique to provide satisfactory lower back pain relief in 75% of patients treated.

A catheter with a thermal tip is inserted through
the needle and coiled in the disc