Implant Lattice Structure For Bone Graft Application and Bone Preparation

An implant trial configured for placement onto a bone, the implant trial comprising:

• a central portion sized for receipt in a joint, the central portion including an articulation surface;
• and
• a peripheral portion extending from the central portion and including a first region and a second region separate from the first region,
• wherein the peripheral portion is configured such that when the central portion is received in the joint, the peripheral portion is received over a bone surface adjacent to the joint such that at least part of a surface of the first region is contoured to be flush with a prepared bone surface and at least part of a surface of the second region is contoured to be positionable over and face an irregular bone surface, and
• wherein the second region has a lattice structure defined by a plurality of openings, the plurality of openings being sized to allow bone graft to be received therethrough or to allow for projections of bone to pass therethrough.

An implant trial configured for placement onto a bone, the implant trial comprising:

• a central portion sized for receipt in a joint, the central portion including an articulation surface;
• and
• a peripheral portion extending from the central portion, the peripheral portion including a first region, a second region, and a third region separate from each other,
• wherein when the central portion is received in the joint, the peripheral portion is configured to be received over a bone surface adjacent to the joint such that at least part of a surface of the first region is flush with a portion of the bone surface, and
• wherein the second region is defined by a first plurality of openings and the third region is defined by a second plurality of openings, at least a portion of the openings of the first plurality of openings being smaller than at least a portion of the openings of the second plurality of openings.