Sacroiliac joint implant system
First Claim
1. A method of treating a sacroiliac joint via implantation of an implant into a sacroiliac joint space defining a plane between a sacrum and an ilium and comprising a cranial portion and a caudal portion, the method comprising:
- delivering an iliac member into the sacroiliac joint space, the iliac member including a first arcuate body including a distal end, a proximal end opposite the distal end, a concave superior surface, a convex inferior surface opposite the concave superior surface, an interface surface and a fixation surface generally opposite the interface surface, the iliac member delivered into the sacroiliac joint space such that;
the concave superior surface faces an extra-articular region and the convex inferior surface faces away from the extra-articular region;
the fixation surface of the iliac member engages the ilium; and
the interface surface of the iliac member faces in a direction of the sacrum; and
delivering a sacrum member into the sacroiliac joint space, the sacrum member including a second arcuate body including a distal end, a proximal end opposite the distal end, a concave superior surface, a convex inferior surface opposite the concave superior surface, an interface surface and a fixation surface generally opposite the interface surface, the sacrum member delivered into the sacroiliac joint space such that;
the concave superior surface faces the extra-articular region and the convex inferior surface faces away from the extra-articular region;
the fixation surface of the sacrum member engages the sacrum and the interface surface of the sacrum member faces in a direction of the ilium,wherein the interface surface of the iliac member engages the interface surface of the sacrum member such that movement relative to one another is restricted when both the iliac member and the sacrum member are implanted in the plane of the sacroiliac joint space.
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Accused Products
Abstract
Accordingly, a broad object of the invention can be to provide an inventive implant to facilitate stabilization while allowing an amount of motion of a sacroiliac joint. Embodiments of the sacroiliac joint implant can provide an elongate body, which can further include at least one fixation member, or a pair of fixation members which extend a distance outward from the longitudinal axis of the implant body adapted for non-transverse placement between the articular surfaces of the sacroiliac joint, and as to certain embodiments can further provide a third fixation member and additionally a fourth fixation member each adapted to extend a distance outward from the elongate body into the bone of the sacrum or the ilium.
409 Citations
35 Claims
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1. A method of treating a sacroiliac joint via implantation of an implant into a sacroiliac joint space defining a plane between a sacrum and an ilium and comprising a cranial portion and a caudal portion, the method comprising:
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delivering an iliac member into the sacroiliac joint space, the iliac member including a first arcuate body including a distal end, a proximal end opposite the distal end, a concave superior surface, a convex inferior surface opposite the concave superior surface, an interface surface and a fixation surface generally opposite the interface surface, the iliac member delivered into the sacroiliac joint space such that;
the concave superior surface faces an extra-articular region and the convex inferior surface faces away from the extra-articular region;
the fixation surface of the iliac member engages the ilium; and
the interface surface of the iliac member faces in a direction of the sacrum; anddelivering a sacrum member into the sacroiliac joint space, the sacrum member including a second arcuate body including a distal end, a proximal end opposite the distal end, a concave superior surface, a convex inferior surface opposite the concave superior surface, an interface surface and a fixation surface generally opposite the interface surface, the sacrum member delivered into the sacroiliac joint space such that;
the concave superior surface faces the extra-articular region and the convex inferior surface faces away from the extra-articular region;
the fixation surface of the sacrum member engages the sacrum and the interface surface of the sacrum member faces in a direction of the ilium,wherein the interface surface of the iliac member engages the interface surface of the sacrum member such that movement relative to one another is restricted when both the iliac member and the sacrum member are implanted in the plane of the sacroiliac joint space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification