Systems for sacroiliac joint stabilization

A system for stabilizing a dysfunctional sacroiliac (SI) joint of a subject, said dysfunctional SI joint comprising first and second bone structures, said system comprising:

• a tool assembly, a SI joint prosthesis, a prosthesis deployment assembly, and a bone harvesting assembly,
• said tool assembly comprising a guide pin and a drill guide assembly,
• said guide pin adapted to be positioned in said dysfunctional SI joint,
• said drill guide assembly adapted to create a pilot SI joint opening in said dysfunctional SI joint through an incision comprising a length no greater than 3.0 cm, said pilot SI joint opening comprising first and second portions,
• said drill guide assembly comprising a drill guide, a bone dislodging member, a first drill guide fixation sub-system, a second drill guide fixation sub-system and a third drill guide fixation sub-system, said bone dislodging member adapted to dislodge portions of bone in said first and second bone structures of said dysfunctional SI joint and create the pilot SI joint opening therein,
• said drill guide comprising a base and a guide member comprising a guide pin lumen adapted to receive said guide pin therein,
• said first drill guide fixation sub-system comprising a plurality of anchor members extending from said base of said drill guide, said plurality of anchor members adapted to pierce and engage biological tissue,
• said second drill guide fixation sub-system comprising a plurality of Kirschner-wires (K-wires) adapted to pierce and engage said first and second bone structures of said dysfunctional SI joint,
• said third drill guide fixation sub-system comprising a K-wire pin member and a temporary fixation pin, said K-wire pin member and said temporary fixation pin also adapted to pierce and engage said first and second bone structures of said dysfunctional SI joint,
• said drill guide further comprising a prosthesis internal access opening and a plurality of fixation guide openings, said prosthesis internal access opening comprising a cross-sectional shape that corresponds to a cross-sectional shape of said SI joint prosthesis, whereby said SI joint prosthesis is readily received and positioned in said drill guide, said prosthesis internal access opening comprising first and second lobe portions,
• said plurality of fixation guide openings adapted to receive said plurality of K-wires therein,
• said first and second lobe portions of said prosthesis internal access opening adapted to receive said K-wire pin member, said temporary fixation pin, and said bone dislodging member therein,
• said first drill guide fixation sub-system operable when said plurality of anchor members pierces and engages first biological tissue proximate said dysfunctional SI joint,
• said second drill guide fixation sub-system operable when said plurality of K-wires are received in said plurality of fixation guide openings and engage said first and second bone structures of said dysfunctional SI joint,
• said third drill guide fixation sub-system operable when said K-wire pin member is received in said first lobe portion of said prosthesis internal access opening in said drill guide and engages said first bone structure of said dysfunctional SI joint, and when said K-wire pin member is received in said second lobe portion of said prosthesis internal access opening in said drill guide and engages said second bone structure of said dysfunctional SI joint,
• said third drill guide fixation sub-system further operable when said temporary fixation pin is received in said first lobe portion of said prosthesis internal access opening in said drill guide and engages said first bone structure of said dysfunctional SI joint, and when said temporary fixation pin is received in said second lobe portion of said prosthesis internal access opening in said drill guide and engages said second bone structure of said dysfunctional SI joint,
• said SI joint prosthesis configured and adapted to be inserted into and through said prosthesis internal access opening in said drill guide and into said pilot SI joint opening in said dysfunctional SI joint,
• said prosthesis deployment assembly configured and adapted to engage said SI joint prosthesis and guide said SI joint prosthesis into and through said prosthesis internal access opening in said drill guide and into said pilot SI joint opening in said dysfunctional SI joint;
• said bone harvesting assembly adapted to extract and collect dislodged bone material from said bone dislodging member after creation of said first portion of said pilot SI joint opening in said second bone structure of said dysfunctional SI joint and said second portion of said pilot SI joint opening in said first bone structure of said dysfunctional SI joint.