Systems and methods for the fusion of the sacral-iliac joint

摘要

The sacral-iliac joint between an iliac and a sacrum is fused either by the creation of a lateral insertion path laterally through the ilium, through the sacral-iliac joint, and into the sacrum, or by the creation of a postero-lateral insertion path entering from a posterior iliac spine of an ilium, angling through the sacral-iliac joint, and terminating in the sacral alae. A bone fixation implant is inserted through the insertion path and anchored in the interior region of the sacrum or sacral alae to fixate the sacral-iliac joint.

主权项

1. A method for the fusion of the sacral-iliac joint between an iliac and a sacrum comprising creating a lateral insertion path laterally through the ilium, through the sacral-iliac joint, and into the sacrum, providing a bone fixation implant free of external screw threads, wherein the bone fixation implant comprises an elongated implant structure having a longitudinal axis and a rectilinear cross section transverse to the longitudinal axis and including an exterior surface region treated to provide bony in-growth or through-growth along the implant structure, inserting the bone fixation implant through the insertion path laterally from the ilium, through the sacral-iliac joint, and into the sacrum with an axially applied, non-rotational force, and anchoring the bone fixation implant in the interior region of the sacrum to fixate the sacral-iliac joint.