05234433 is referenced by 422 patents and cites 11 patents.

A method and instruments for replacing the articulating surfaces of a knee joint in which the diseased area is restricted to one of the medial and lateral compartments. A femoral intramedullary rod is placed down the center of the femur. A femoral cutting block is affixed at one side to the rod and at the other side to an outrigger attached to the femur by smooth pins. The cutting block is adjustable rotationally and in the anterior-posterior plane. The cutting block is provided with surgical saw guide slots for the posterior and distal articular surface cuts and the chamfer cuts, all of which are made with the cutting block in place. The cutting block is removed and a drill guide is used for drilling two holes in the distal articular cut surface for receipt of the mounting pegs of the femoral unicompartmental prosthetic implant. A tibial intramedullary rod is placed down the center of the tibia, to which is adjustably affixed a vertical cutting block, a horizontal cutting guide and a caliper measuring device. The caliper measuring device is used to properly locate the cutting guide and the horizontal tibial cut is made. Upon removal of the measuring device and cutting guide, the cutting block is used to guide the vertical cut. The cutting block and tibial intramedullary rod are removed. The tibial prosthesis is comprises a tray and a snap-in bearing insert. A tibial template is placed on the horizontal tibial cut surface and a hole for the tray mounting peg is drilled together with additional holes for mounting screws, if used.

Title
Method and instrumentation for unicompartmental total knee arthroplasty
Application Number
412318
Publication Number
5234433
Application Date
October 18, 1991
Publication Date
August 10, 1993
Inventor
Richard W Woods
Baltimore
MD, US
Jack M Bert
Woodbury
MN, US
Agent
Frost & Jacobs
Assignee
Kirschner Medical Corporation
MD, US
IPC
A61B 17/56
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