Patent ID: 9050144
Filing Date: 2015-06-09
Classification: A61B,A61F

Abstract:
1. A system comprising: a fixation member comprising a proximal end and a distal end implantable in a bone to secure the fixation member to the bone; an implant comprising a fixation portion and an articulation surface shaped to articulate with an adjacent implant or natural articulation surface; a base member shaped to receive the distal end, the base member comprising a bone-engaging portion and an attachment portion configured to be secured to the implant, wherein the bone-engaging portion and the attachment portion are separated by a flange having a width greater than a width of the bone-engaging portion and the attachment portion, wherein the bone-engaging portion is tapered to provide compression to surrounding bone, wherein the base member further comprises a tool engagement rim including a plurality of notches, wherein the bone-engaging portion comprises a tapered outer surface having a plurality of fins disposed around the tapered outer surface; and an expandable member positioned between the implant and the base member, wherein the expandable member is configured to extend around the attachment portion of the base member, wherein the fixation portion is attachable to the attachment portion in any of a plurality of orientations of the implant relative to the base member to permit polyaxial adjustment of an orientation of the articulation surface relative to the base member prior to attachment of the fixation portion to the attachment portion; and wherein the fixation portion of the implant is a ring configured to surround the expandable member.