Zimmer Technology, Inc.

Symmetry Medical Manufacturing, Inc.

Other

Scott C Lazar

Adam H Sanford

Scott Steffensmeier

Richard Lane

Chris Bremer

Richard Williamson

Robert A Hodorek

Dwight T Todd

Vincent A Webster

Brian D Byrd

Toby N Farling

Kristina J Straszheim-Morley

Toby Farling

A method of forming a bone cutting block includes: forming a plurality of saw slot plates and two side plates, the plurality of saw slot plates each including a plurality of ends opposing one another, each of the plurality of ends including a locating feature, the side plates including a plurality of locating features; and supporting the plurality of saw slot plates using the side plates, each locating feature of the plurality of saw slot plates being connected with a respective one of the plurality of locating features of the side plates and the side plates thereby opposing one another, the plurality of saw slot plates defining at least one slot therebetween which is configured for receiving a bone saw blade therethrough to make a predefined cut in a bone.

Orthopaedic cutting block

A bone cutting block includes: a plurality of saw slot plates each including a plurality of ends opposing one another, each of the plurality of ends including a locating feature, the plurality of saw slot plates defining at least one slot therebetween which is configured for receiving a bone saw blade therethrough to make a predefined cut in a bone; and two side plates opposing one another, including a plurality of locating features, and supporting the plurality of saw slot plates, each locating feature of the plurality of saw slot plates being connected with a respective one of the plurality of locating features of the side plates.

A trialing assembly for use during knee replacement procedures to determine size and position of a tibial plate implant as well as the size and thickness of the articular surface prior to implantation of the implant. The trialing assembly includes a broaching plate having a tibia engaging bottom surface adapted for placement atop a tibia and an opposite top surface, the bottom and top surfaces extending between an anterior edge and a posterior edge of the broaching plate. The broaching plate includes an anterior rail and a posterior rail protruding superiorly from the top surface and extending along the anterior and posterior edges, respectively. A trialing plate is configured to removably fit atop the broaching plate between the anterior and posterior rails. The trialing plate includes an engagement member extending from a superior surface of the trialing plate and adapted to engage with an articular surface provisional.

Tibial trialing assembly and method of trialing a tibial implant

An orthopedic knee component for implanting within a single compartment of a human knee includes, in a first embodiment a tibial tray having a superior surface having a plurality of tabs disposed along an exterior edge thereof, a bearing component having a superior surface adapted to articularly engage a femoral knee prosthesis and a circumferential groove disposed therearound with which the tabs of the tibial tray cooperatively engage such that the bearing component is movable relative to the tibial tray. In a second embodiment, an orthopedic knee component for implanting within a single compartment of a human knee includes: a tibial tray in supporting engagement with a bearing component, wherein the bearing component includes a superior surface adapted to articularly engage a femoral knee prosthesis and a pair of slots disposed along the superior surface of the bearing component, the femoral component having a pair of rails extending from the articulating surface thereof such that the rails can slidingly engage the slots, and such that the bearing component is movable relative to the tibial tray.

Mobile bearing unicompartmental knee

A provisional orthopedic prosthesis having a first provisional component and an optional second component. The provisional prosthesis may be a partial knee prosthesis and is used to assess the fit of a permanent prosthesis having first and second components. The first provisional component has a size which differs from the first permanent component and is mountable on a bone which has been only partially prepared to receive the first permanent component. Providing a provisional component which is mounted on a partially prepared bone, simplifies the preparation of the bone for a differently sized component if the provisional indicates that the preliminarily selected permanent component is incorrectly sized.

Provisional orthopedic prosthesis for partially resected bone

Growing community of inventors

Cromwell, IN, United States of America

Scott C Lazar