Injectable disc nucleus (IDN) - 1

This technique follows the same reasoning as PDN (see above), but instead of implanting a man-made nucleus, now an injection is performed into the nucleus location. The substance used is a conglomerate of elastine and silk. It has the same elastic and biomechanical properties as a healthy nucleus and therefore makes a good replacement. Its use in practice is at present purely experimental. If your surgeon suggests this technique, he or she will also ask you for your consent to the conditions governing the study.

Illustration : The illustration shows how the product (IDN) is introduced through the annulus into the area formerly occupied by the nucleus.

This graph compares the elasticity of a normal 'native' nucleus, an IDN restored nucleus and a nucleus removed after a traditional herniated disc operation. It shows clearly that IDN restores the original elasticity.

Injectable disc nucleus (IDN) - 1