Systems, Apparatus and Methods for Stabilizing Sacroiliac Joints

An implant for stabilizing a dysfunctional sacroiliac (SI) joint, comprising:

• a monolithic member and a bone stabilizing pin, said monolithic member configured and adapted to be advanced into said dysfunctional SI joint in said posterior trajectory,
• said monolithic member comprising a first elongated section, a second elongated section, and a bridge section, said bridge section disposed between and not extending beyond said first elongated section and said second elongated section of said monolithic member in any direction, said bridge section comprising a bridge proximal end and a bridge distal end,
• said first elongated section comprising a first open proximal end, a first open distal end, and a first internal lumen that extends from said first open proximal end to said first open distal end of said first elongated section, said first internal lumen comprising a first length from said first open proximal end to said first open distal end of said first elongated section, said first internal lumen sized and configured to receive said bone stabilizing pin therein,
• said first elongated section further comprising first internal threads, said first internal threads disposed in said first internal lumen and extending from said first open proximal end of said first elongated section,
• said first elongated section further comprising a first tapered region disposed on said first open distal end,
• said second elongated section comprising a second open proximal end, a second open distal end, and a second internal lumen that extends from said second open proximal end to said second open distal end of said second elongated section, said second internal lumen comprising a second length from said second open proximal end to said second open distal end of said second elongated section, said second internal lumen sized and configured to receive said bone stabilizing pin therein,
• said second elongated section further comprising second internal threads, said second internal threads disposed in said second internal lumen and extending from said second open proximal end of said second elongated section,
• said second elongated section further comprising a second tapered region disposed on said second open distal end,
• said bone stabilizing pin comprising a pin proximal end, a pin distal end and a third length from said pin proximal end to said pin distal end, said third length of said bone stabilizing pin being greater than said first length of said first internal lumen of said first elongated section and said second length of said second internal lumen of said second elongated section,
• said bone stabilizing pin further comprising an expandable end member, said expandable end member comprising a longitudinal axis, a proximal end cap, a distal end cap and an expandable mid-region disposed between and connected to said proximal end cap and said distal end cap,
• said expandable mid-region comprising a mesh structure adapted to expand outwardly and circumferentially with respect to said longitudinal axis from a compressed pre-formed configuration to an expanded configuration,
• said proximal end cap of said expandable end member comprising a third internal lumen, said third internal lumen comprising third internal threads,
• said bone stabilizing pin comprising a first threaded region on said pin proximal end adapted to engage and cooperate with said first internal threads of said first elongated section and said second internal threads of said second elongated section, and a second threaded region on said pin distal end adapted to engage and cooperate with said third internal threads of said expandable end member,
• said bone stabilizing pin adapted to be advanced into said dysfunctional SI joint when said monolithic member is said advanced into said dysfunctional SI joint, said bone stabilizing pin is received in said first internal lumen of said first elongated section, and said bone stabilizing pin is advanced through said first internal lumen of said first elongated section, whereby said expandable end member said expands outwardly and circumferentially with respect to said longitudinal axis to said expanded configuration and fixes said bone stabilizing pin to said dysfunctional SI joint.