Method of performing percutaneous extraforaminotomy using tool set for percutaneous extraforaminotomy

A method of performing percutaneous extraforaminotomy using a tool set for percutaneous extraforaminotomy, the method comprising:

• a first step of examining various ligaments around intervertebral foramen;
• a second step of determining an insertion location of a stylet member and a trocar according to a ligament structure around the intervertebral foramen, which is different among patients;
• a third step of inserting the stylet member toward a target point for resection through the skin of a portion (spinal facet joint) adjacent to the intervertebral foramen;
• a fourth step of identifying a location of the stylet member by injecting a contrast dye;
• a fifth step of restoring a disc height by filling a disc space with a hydrogel;
• a sixth step of inserting the trocar toward a target point for ligament resection under guidance of a guide pipe of the stylet member;
• a seventh step of performing a first resection operation;
• an eighth step of inserting the trocar into a cannula and then separating the trocar to secure a space for inserting subsequent tools;
• a ninth step of performing a second ligament resection operation using a curette coupled to the cannula;
• and
• a tenth step of inserting a catheter into the intervertebral foramen, suitably delivering a chemical substance to the periphery of nerve branches causing pain, and then discharging an inflammatory substance existing in the intervertebral foramen along with the chemical substance through the expanded intervertebral foramen.