System for sacroiliac joint fusion

A surgical system for preparing the sacroiliac joint for a fusion, comprising a sliding joint finder and a working cannula;

• a) wherein the sliding joint finder comprises:
• i) a central axis with a hole that runs the length of the sliding joint finder;
• ii) a unilateral shelf located on an outer surface of the sliding joint finder;
• and
• b) wherein the working cannula comprises a body having a central axis that runs the length of the body;
• wherein the body of the working cannula comprises a distal end, a proximal end and a central cavity that is positioned along the central axis of the working cannula and has suitable dimensions for sliding the working cannula over the sliding joint finder, the body including a first side and a second side that opposes the first side;
• wherein the first side of the body of the working cannula includes a first marking configured to identify that the first side is configured to face the ilium and the second side of the body of the working cannula includes a second marking configured to identify that the second side is configured to face the sacrum, the second marking being different from the first marking;
• wherein the working cannula further comprises a first protrusion and a second protrusion extending proximally;
• and
• wherein the first protrusion is longer than the second protrusion such that when the working cannula is inserted into the SI joint over the sliding joint finder, the first side is configured to face the ilium, the second side is configured to face the sacrum, the first protrusion is configured to engage the SI joint at a superior end of the SI joint, and the second protrusion is configured to engage the SI joint at an inferior end of the SI joint,
• wherein the lateral guide boom comprises a proximal end with a paddle shaped structure with one or more drill holes, configured to receive bone screws, a lateral arm configured to be inserted into a rectangular slot of the working cannula, and
• wherein the lateral guide boom is configured to be locked to the working cannula with a threaded capture clip.