Threaded implants and methods of use across bone segments

An elongated threaded implant sized and configured for implantation in a sacroiliac joint of a patient, comprising:

• an internal support extending axially from a proximal end of the threaded implant to a distal end of the implant;
• an external thread extending radially outward relative to the internal support and extending axially along a length of the implant;
• and
• a porous infill disposed in a helical configuration about an implant axis between the external thread such that the porous infill forms a root diameter of the external thread,
• the porous infill comprising a plurality of pores sized to provide for one or more of bony on-growth, ingrowth or through-growth,
• the porous infill comprising a plurality of breaks in the helical configuration,
• wherein the plurality of breaks are in a helical configuration that is different than the helical configuration of the porous infill between the external thread,
• wherein a path defined by the helical configuration of the plurality of breaks is void of the porous infill,
• wherein the path has a pitch that is at least eight times a pitch of the helical configuration of the porous infill between the external thread, and
• wherein the external thread and the helically configured porous infill are manufactured from the same material, and are manufactured together during the same additive manufacturing process.

An elongated threaded implant sized and configured for implantation in a sacroiliac joint of a patient, comprising:

• an internal support extending axially from a proximal end of the threaded implant to a distal end of the implant;
• an external thread extending radially outward relative to the internal support and extending axially along a length of the implant;
• and
• a scaffolding disposed in a helical configuration about an implant axis between the external thread such that the scaffolding forms a root diameter of the external thread,
• the scaffolding comprising a plurality of pores sized to provide for one or more of bony on-growth, ingrowth or through-growth,
• the scaffolding comprising a plurality of breaks in the helical configuration,
• wherein the plurality of breaks are in a helical configuration that is different than the helical configuration of the scaffolding between the external thread,
• wherein a path defined by the helical configuration of the plurality of breaks is void of the scaffolding,
• wherein the path has a pitch that is at least eight times a pitch of the helical configuration of the scaffolding between the external thread, and
• wherein the external thread and the helically configured scaffolding are manufactured from the same material, and are manufactured together during the same additive manufacturing process.

A method of implanting an elongated threaded implant in a sacroiliac (SI) Joint of a patient, the method comprising:

• providing an elongated threaded implant comprising:
• an internal support extending axially from a proximal end of the threaded implant to a distal end of the implant;
• an external thread extending radially outward relative to the internal support and extending axially along a length of the implant;
• and
• a porous infill disposed in a helical configuration about an implant axis between the external thread such that the porous infill forms a root diameter of the external thread,
• the porous infill comprising a plurality of pores sized to provide for one or more of bony on-growth, ingrowth or through-growth,
• the porous infill comprising a plurality of breaks in the helical configuration,
• wherein the plurality of breaks are in a helical configuration that is different than the helical configuration of the porous infill between the external thread,
• wherein a path defined by the helical configuration of the plurality of breaks is void of the porous infill,
• wherein the path has a pitch that is at least eight times a pitch of the helical configuration of the porous infill between the external thread, and
• wherein the external thread and the helically configured porous infill are manufactured from the same material, and are manufactured together during the same additive manufacturing process, and
• using a driving tool to screw the implant across the SI-Joint using a postero-lateral approach, entering from a posterior iliac spine of an ilium of the patient, angling through the SI-Joint, and terminating in the patient's sacral alae.