Patent ID: 7850698

Claim:
A trialing assembly for use during a knee replacement procedure to prepare a resected tibia for receiving a tibial implant and to trial an articular surface provisional, said trialing assembly comprising: a support plate having an outer periphery, said support plate including a bottom surface adapted for placement atop the resected tibia and an opposite top surface, said support plate having a posterior alignment rail, a medial anterior alignment rail, and a lateral anterior alignment rail, each of said posterior alignment rail, said medial anterior alignment rail, and said lateral anterior alignment rail extending from said top surface and positioned adjacent to said outer periphery of said support plate, said medial anterior alignment rail and said lateral anterior alignment rail spaced apart from one another to define a notch therebetween; a trialing plate removably positionable on said top surface of said support plate between said posterior alignment rail, said medial anterior alignment rail, and said lateral anterior alignment rail, said trialing plate having a tab extending therefrom, said tab configured to be received within said notch defined by said medial anterior alignment rail and said lateral anterior alignment rail of said support plate, wherein interaction of said tab with said medial anterior alignment rail and said lateral anterior alignment rail substantially restricts medial-lateral movement of said trialing plate relative to said support plate; and a broaching plate having an inferior surface, a superior surface, an anterior broaching plate alignment rail, and a posterior broaching plate alignment rail, said trialing plate configured to be received between said anterior broaching plate alignment rail and said posterior broaching plate alignment rail, wherein said support plate comprises a base plate.