Sacro-iliac joint stabilizing implants and methods of implantation

A method of positioning a sacro-iliac (“SI”) joint stabilizing implant across an SI joint from a dorsal approach, comprising:

• advancing an elongate sacrum pin from a dorsal starting point into a sacrum of a subject such that a distal end of the sacrum pin is in the sacrum and a proximal end of the sacrum pin is disposed outside of the subject;
• advancing an elongate ilium pin from a dorsal starting point into an ilium of the subject such that a distal end of the ilium pin is in the ilium and a proximal end of the ilium pin is disposed outside of the subject;
• advancing a distal opening of an ilium lumen that is in an ilium portion of an SI joint stabilizing implant over the ilium pin and advancing a distal opening of a sacrum lumen that is in a sacrum portion of the SI joint stabilizing implant over the sacrum pin,
• wherein the distal opening of the ilium lumen extends further distally than the distal opening of the sacrum lumen;
• advancing the implant distally over and relative to the sacrum pin and the ilium pin until the implant is across the SI joint with the ilium portion in the ilium and the sacrum portion in the sacrum,
• wherein the distal opening of the ilium portion is advanced further distally than the distal opening of the sacrum portion;
• and
• removing the ilium pin and the sacrum pin from the subject, leaving the implant positioned across the SI joint.