Smith + Nephew

Dm Spine 1 LLC

William L Waltersdorff

Charles Wayne Allen

Michael A Croxton

Jeffrey Joel Shea

Terry W McLean

Jason A Capriotti

Roger William Frank Ashton

Justin M Waugh

Sureshkumar Srinivasan

David C Kelman

Kevin Wayne Belew

Michael Scott McCaig

David Mitchell

Roger William Ashton

Terry W Mclean

A modular acetabular cup assembly for use with multiple bearing liners is disclosed. The acetabular cup assembly includes a shell having a tapered inner wall and two circumferential grooves. The shell may be used with polyethylene, ceramic, metal, and other types of liners.

Acetabular cup assembly for multiple bearing materials

A modular acetabular cup assembly () for use with multiple bearing liners () is disclosed. The acetabular cup assembly includes a shell () having a tapered inner wall () and two circumferential grooves (). The shell () may be used with polyethylene, ceramic, metal, and other types of liners.

A method for forming an implant for a bone including the steps of generating a first general shape for the implant having a length extending along a long axis of the bone, determining an area moment of inertia of a cross section of the implant, determining an area moment of inertia for a cross section of bone coplanar to the cross section of the implant, calculating a percent stress shielding from the area moments of inertia of the implant and the bone, comparing the calculated percent stress shielding to a preset threshold, and iteratively generating additional general shapes for the implant by locally adjusting the cross section of the implant until the calculated percent stress shielding meets the preset threshold.

Variable stiffness stem for prosthetic implants

An adjustable impactor for a tool comprises a handle, a first link, and a second link. The first link is pivotably attached to the handle. The second link is pivotably attached to the first link. The second link has a connector configured to attach to the tool. A method for impacting an orthopaedic component inside a surgical cavity includes a step for pivoting a first link relative to a handle. Another step pivots a second link relative to the first link. The first and second links are locked. A step attaches a tool to the second link. An impacting step impacts the handle such that the handle transmits the force from the impact through the first and second links to the tool.

Adjustable impactor

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Hernando, MS, United States of America

William L Waltersdorff