Patent ID: 9572687
Date: 2017-02-21
CPC Classifications: A61B,A61F

Claim:
1. An apparatus for aligning a prosthesis to a native version alignment of a bone, the apparatus comprising: a base plate having an outer surface and an underside surface; a first fastener configured to couple the underside surface of the base plate to the bone; an alignment arm having a proximal end and a distal end and having an ability to adjust in at least three dimensions with respect to the base plate; and a second fastener configured to couple the proximal end of the alignment arm to the base plate; the alignment arm having a version arm extending from the distal end for indicating the native version alignment of the bone; wherein the alignment arm includes: a horizontal rotation arm, adjustably mounted horizontally with respect to the base plate, and having an inferior end and a superior end, wherein the horizontal rotation arm is adjustable in a horizontal direction and rotatable along a horizontal axis; a vertical swivel arm adjustably coupled to the horizontal rotation arm and configured to be rotatable about a vertical axis perpendicular to the horizontal axis; the version arm extending from the vertical swivel arm and mounted so as to be slidable along the vertical swivel arm.