| 摘要 |
A method for fusing a spinal sacroiliac joint The method includes the steps of locating the sacroiliac joint, retracting the soft tissue to expose the graft site, removing any bone obstructions and preparing a relatively smooth graft site horizontal to the immediate sacroiliac joint, creating a therapeutic cavity by creating a first cavity in the ilium and a second cavity in the sacrum to a predetermined depth that spans the sacroiliac joint, inserting a stabilization implant into the therapeutic cavity, and seating the implant within the therapeutic cavity at a predetermined depth. |
| 主权项 |
1. A method for fusing a sacroiliac joint, comprising the steps of:
creating a therapeutic cavity by creating a first cavity in an iliac bone and a second cavity in a sacrum, said first cavity being in open communication with said sacroiliac joint, said second cavity being in open communication with said sacroiliac joint, said therapeutic cavity formed by said first cavity, said second cavity, and said sacroiliac joint,
wherein a resulting cavity is formed between said first and second cavities in said sacroiliac joint by the empty space of said sacroiliac joint,said therapeutic cavity formed by
creating one of said first cavity and said second cavity, andcreating another of said first cavity and said second cavity after creation of said one of said first cavity and said second cavity, andwherein said resulting cavity is formed in said sacroiliac joint by empty space in said sacroiliac joint; maintaining said iliac bone and said sacrum in their respective positions while creating said first and second cavities; and filling said cavity with a bone void filler;
wherein creating the therapeutic cavity comprises:
exposing the sacroiliac joint with a set of dilation tubes having increasing diameters;sliding a joint locator within the lumen of the smallest diameter dilation tube until a distal end of said joint locator engages the sacroiliac joint so that a joint locator blade distally located on said joint locator aligns in the sacroiliac joint;tapping a proximal end of said joint locator to reversibly secure said joint locator blade into the sacroiliac joint;removing the interior dilation tubes;abrading sacroiliac joint surfaces using said joint locator blade;sliding a cannulated reamer over said joint locator until a distal end of said reamer engages the sacroiliac joint, creating a relatively flat horizontal graft site;removing said reamer and said joint locator from within a lumen of the dilation tube;inserting a directional cannula into the dilation tube until a distal end of said directional cannula engages the sacroiliac joint so that alignment teeth distally located on said directional cannula align in the sacroiliac joint;tapping a proximal end of said directional cannula to reversibly secure said alignment teeth into the sacroiliac joint;aligning a drill guide over said directional cannula so that a non-centered guide hole is positioned over the iliac bone;inserting said aligned drill guide into a lumen of said directional cannula until a positive stop on said directional cannula is engaged;inserting a drill bit through said non-centered drill guide hole and drilling a cavity within the iliac bone to a predetermined depth;removing said drill bit from a lumen of said drill guide;removing said drill guide from said lumen of said directional cannula;rotating said drill guide one hundred eighty degrees (180°), aligning said drill guide over said directional cannula so that said non-centered guide hole is positioned over the sacrum;inserting said aligned drill guide into said lumen of said directional cannula until said positive stop on said directional cannula is engaged;inserting said drill bit through said non-centered drill guide hole, now positioned over the sacrum, and drilling a cavity within the sacrum to a predetermined depth;removing said drill bit from the lumen of said drill guide;inserting said drill bit through a centered drill guide hole and drilling a cavity within the sacroiliac joint to a predetermined depth;removing said drill bit from said lumen of said drill guide, and removing said drill guide from said lumen of said directional cannula;wherein filling said cavity with the bone void filler comprises:
inserting a stabilization implant through said lumen of said directional cannula;inserting an implant positioner into said lumen of said directional cannula until said implant positioner engages said implant, and a distal end of said implant engages said therapeutic cavity;tapping a proximal end of said implant positioner until a positive stop on said directional cannula is engaged to properly seat said implant into said therapeutic cavity, at a prescribed depth completely within said therapeutic cavity, proportionately distributed laterally across the sacroiliac joint engaging the sacrum and the ilium;removing said implant positioner from said lumen of said directional cannula;removing said directional cannula from said sacroiliac joint; andremoving the dilation tube from said soft tissue. |
