Explanation:

Intradiscal heating procedures are currently performed using two different methods. The original method was developed in the early 1990's by Dr. Sluijter of Holland. With this technique, a needle with 1.0 to 1.5 cm exposed tip is placed into the nucleus and annulus of the intervertebral disc. A radiofrequency generator is used to heat the surrounding tissue. Commonly, several different locations are heated to temperatures between 65 and 80 degrees centigrade for a duration of one to five minutes. Our results using this technique are summarized in the first abstract (Intradiscal Thermal Modulation). Criticism of this technique primarily centers on the ability of radiofrequency current to effectively reach therapeutic temperatures in the surrounding tissue. The effective heating radius is probably limited to 2 to 4 mm distance from the needle tip.

A newer technique was developed by Oratec. Rather than using radiofrequency, a catheter is used which itself is heated. Radiant heat then spreads into the surrounding tissue. Using this technique, one can achieve better spread of heat in the intervertebral disc. Our six-month follow-up using this newer technique is summarized in the second abstract (Intradiscal Electrothermal Annuloplasty, also known as Intradiscal Electrothermal Therapy or IDET).

IEA Video Clips:

•   Video Clip 1
•   Video Clip 2
•   Video Clip 3
•   Video Clip 4
•   Video Clip 5
•   Video Clip 6
•   Video Clip 7

home