Depuy Ireland Unlimited Co.

Other

Howmedica Osteonics Corporation

Depuy Products, Inc.

Depuy International Limited

Thomas P Schmalzried

Daniel J Berry

Duncan G Young

Thomas S Camino

Gary Moore

James Alan Caywood

Paul Peter Lewis

Murali Jasty

Stephanie Prince

Thomas S Thornhill

Marc Weissman

Alena M Brandewie

J Brock VanMeter, Jr

Andrew W Donn

Graham Isaac

Brian Griffiths

Fiona Haig

Kimberly Sepulveda

John Callaghan

David Fisher

An orthopaedic components, prostheses, and methods for a hip arthroplasty are disclosed. The acetabular prosthetic component includes an outer rim and a cavity defined by an inner wall. The cavity is sized to receive a femoral head of a femoral prosthetic component. The inner wall includes a curved surface extending inwardly from the outer rim to an inner end, and a semi-spherical surface connected to the inner end of the curved surfac. The inner wall is shaped to resist dislocation of the femoral head component from the cavity and permit the femoral head component to articulate over a range of motion.

Acetabular orthopaedic prosthesis and method

An apparatus and method for measuring a version angle of a restored neck of a femur during a hip replacement procedure. The apparatus includes a broach. The broach has a distal end that is insertable into a medullary canal of the neck of the femur. The broach also has a proximal end that extends along a neck axis of the broach. The apparatus also includes a protractor. The protractor includes a rod which is attachable to the proximal end of the broach to extend away from the neck axis of the broach for measuring the version angle of the restored neck of the femur relative to a vertical direction. The method includes inserting the broach, flexing the knee at approximately ninety degrees, orienting the tibia vertically, attaching the protractor to the proximal end of the broach and using it to measure the version angle.

Version protractor

A guide for use prior to, or concurrently with, resecting a portion of a patient's bone includes a body, an anterior adjustment member, at least one posterior adjustment foot, at least one adjustable condylar alignment pin, an adjustable anterior arm, and means to direct guide pins into the femur. The body has multiple apertures configured to accept pins. The anterior adjustment member is coupled to the body and moves toward/away from the femur and contacts an anterior portion of the femur. The posterior adjustment foot is coupled to the body and moves toward/away from the femur and contacts a posterior portion of the femur. The anterior arm is coupled to the anterior adjustment member and is configured to contact the femur proximal of the anterior adjustment member. The rotation arm is coupled to the body and provides guides to drill into the femur.

Programmable femoral pin guide

This invention relates to an orthopaedic joint prosthesis implant kit (). The implant kit comprises a stem component () of an orthopaedic joint prosthesis which is intended for articulation with a mating component of the joint. The stem component has a distal end () and a proximal end (), and a neck part () at the proximal end, and is configured for fixation in a bone cavity-using bone cement material with the distal end within the cavity and the proximal end at the opening of the cavity, and with the neck part protruding from the cavity towards the mating component of the joint. The implant kit further comprises a positioning kit (), at least one spacer () for location between the wall of the cavity and the stem component at its proximal end, and a delivery device ().

Orthopaedic joint prosthesis implant kit

A articulating hemiarthroplasty prosthesis () for use in arthroplasty is provided. The prosthesis includes a stem () for implantation at least partially within the medullary canal () of a long bone () and a collar (). The collar () is operably associated with the stem () and extends outwardly therefrom. At least a portion of the collar () includes a resorbable material. The prosthesis includes a head () and a cup () for engagement with the head ().

Prosthesis with resorbable collar

Apparatus and methods involving the use of a prosthetic low pressure reservoir for joint fluid and removal of particulate debris from arthritic joints or joints containing artificial, man-made prostheses. The apparatus filters the fluid and traps any particles therein, thus removing them from the periprosthetic space. A communication is created between a space continuous with the articular surfaces of a joint and a separate extraarticular space. The apparatus connects the space continuous with the articular surfaces of the joint to a fluid reservoir located in the extraarticular space. The reservoir contains means for fluid filtration and particle trapping. The extraarticular location of the reservoir is at a lower pressure than the intraarticular space. Increases in intraarticular joint fluid pressure during normal joint activities will cause fluid and particulate debris to preferentially flow into the low pressure reservoir. In this manner, intraarticular fluid pressures are reduced, joint fluid is filtered, and the particulate and/or solute species are collected in the device while joint fluid either diffuses into the extraarticular space or is recycled back into the joint. The device may be implanted at the same time as or any time after a joint is replaced by a prosthesis. This device may also be incorporated as a fixed feature of an implant/bearing combination.

Method and apparatus for joint fluid decompression and filtration with

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Rolling Hills, CA, United States of America

Thomas P Schmalzried