James M Lacey

Author:

James Lacey

ISBN #:

0806946024

Author:

James Lacey

ISBN #:

0806946032

Author:

James Lacey

ISBN #:

0806946393

US Patent:

47597674, Jul 26, 1988

Filed:

Aug 10, 1987

Appl. No.:

7/083326

Inventors:

James A. Lacey - Winter Park FL

Assignee:

Dow Corning Wright Corporation - Arlington TN

International Classification:

A61F 238

US Classification:

623 20

Abstract:

A prosthesis for replacing the proximal end of a tibia, installable without bone cement which includes a tibial plateau portion adapted to receive an articulation insert. Integral with the underside of the plateau is an intermedullary fixation stem to which is attached a medial-lateral fin. Attached to each end of the fin is a transverse fin which provides a dual "T" configuration, which provides superior anchoring of the prosthesis.

US Patent:

42623685, Apr 21, 1981

Filed:

Sep 24, 1979

Appl. No.:

6/078451

Inventors:

James A. Lacey - Winter Park FL

Assignee:

Wright Manufacturing Company - Arlington TN

International Classification:

A61F 103

US Classification:

3 1911

Abstract:

A prosthesis for replacement of the human knee joint, having separate femoral and tibial components which after implantation are freely relatively rotatable about a proximal-distal axis and are hingedly connected about a transverse axis posterior of the axis of rotational movement.

US Patent:

45024839, Mar 5, 1985

Filed:

Mar 9, 1983

Appl. No.:

6/473466

Inventors:

James A. Lacey - Winter Park FL

Assignee:

Dow Corning Corporation - Midland MI

International Classification:

A61F 504

US Classification:

128303R

Abstract:

The present invention provides a method and apparatus for preparing the distal surface of a femur to receive a distal femoral prosthesis employing an alignment guide which is used to externally locate the central long axis of the femur based upon certain external reference points on the distal femur. The alignment guide is composed of a main body, a pivotable resection guide instrument holder, a locator pin, at least one femoral surface modifying instrument which cooperatively engages with the holder and a means such as a clamp for affixing the main body to the femur to accomplish the shaping of the distal femoral surface. The central long axis of the main body is brought into alignment with the central long axis of the femur through the use of a locator pin. The pivotable instrument holder holds resection guide instruments at a preselected angle with respect to the main body such that the shaping instruments fixed thereto assume the proper alignment with respect to the central long axis of the femur such that the distal femoral surface is shaped relative to that axis in a simple and accurate manner.