Alexandria Research Technologies, LLC

Other

Smith + Nephew

Depuy Orthopaedics, Inc.

Cayenne Medical, Inc.

Anderson, Katherine S.

Engh, Gerard A.

Nadzadi, Mark Ellsworth

Wilkinson, Zachary Christopher

Scifert, Christopher F.

Gerard A Engh

Wesley D Johnson

Michael Travanty

Robert Edward Kohler

Aaron J Bisek

Daryl R Pilarski

Zachary Christopher Wilkinson

Mark Ellsworth Nadzadi

Kevin David Swanson

Christopher F Scifert

Katherine S Anderson

Deborah S German

Anthony G Kremer

Jeff R Webb

Mike Travanty

Kevin T Stables

Robert E Kohler

Michael N Travanty

Kevin T Staples

Kevin D Swanson

Methods and apparatus for performing knee arthroplasty, including, but not limited to, bicruciate retaining knee arthroplasty, are described herein. Methods and apparatus for preparing a distal femur for a femoral implant as well as methods and apparatus for preparing a proximal tibia for a tibial implant are described. These methods and apparatus, in at least some embodiments and uses, facilitate decreasing the complexity of knee arthroplasty procedures such as bicruciate retaining procedures, while maintaining, if not improving on, the safety, accuracy and/or effectiveness of such procedures.

Methods and apparatus for performing knee arthroplasty

The present invention provides a modular device for restoring individual joint kinematics using minimally invasive surgical procedures. The modular implants include distinct components that include tethering means. The modular implants provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy.

Modular apparatus and method for sculpting the surface of a joint

Methods and devices for sculpting bones, particularly in preparation for implanting prosthetic devices to replace articulating bone joint surfaces. Improved bone removal devices including burr mills driven by gears and loop drives are provided. Reciprocating cutters and belt cutters are also provided. Some devices have either integral or removable expandable portions to vary the force and bone resection depth. Devices can have irrigation ports and plenums to remove bone fragments. Some cutters are dual cutters, adapted to remove bone in two or more regions, such as the knee joint, simultaneously.

Apparatus and method for sculpting the surface of a joint

The present invention provides a method and device for restoring individual patient joint kinematic using minimally invasive surgical procedures. The instrumentation of the invention sculpts the articular surface of a first bone that normally articulates in a predetermined manner with a second bone. The implant system is comprised of implants that provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy.

Implants for partial knee arthroplasty

The present invention provides a modular device for restoring individual joint kinematics using minimally invasive surgical procedures. The modular implants include distinct components that include interconnection means and tethering means. The modular implants provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy.

A method and apparatus for minimally invasive total joint replacement. The method involves sculpting the articular surface of a second bone that normally articulates with a first bone by attaching a bone sculpting tool directly or indirectly to the first bone with the tool in bone sculpting engagement with the articular surface of the second bone, and then sculpting the articular surface of the second bone with the joint reduced and moving one bone with respect to the other. An implant is placed to replace the articular surface of the second bone using an impaction device directly or indirectly attached to the first bone, wherein the force to place the implant is reacted by the second bone and the first bone.

Apparatus and method for minimally invasive total joint replacement

A method and apparatus for minimally invasive total joint replacement is disclosed. The method involves sculpting the articular surface of a second bone that normally articulates with a first bone by attaching or supporting a bone sculpting tool directly or indirectly to the first bone with the tool in sculpting engagement with the articular surface of the second bone, and then sculpting the articular surface of the second bone with the joint reduced. The reamer system includes a reamer drive, a grater, a handle and a femoral broach.

The present invention provides a method and device for restoring individual patient joint kinematics using minimally invasive surgical procedures. The instrumentation of the invention sculpts the articular surface of a first bone that normally articulates in a predetermined manner with a second bone. The instrumentation includes a bone sculpting tool and a mount for attaching the tool to the second bone. The implant system is comprised of implants that provide intraoperative surgical options for articular constraint and facilitate proper alignment and orientation of the joint to restore kinematics as defined by the individual patient anatomy.

Bicompartmental implants and method of use

An apparatus is provided for replacing at least a portion of a proximal tibia. The tibial tray apparatus includes a posterior compensation element configured for extension across a resected surface of the tibia and formed to include a proximal surface, a distal surface, and a side wall and a stem extending from and being unitary with the distal surface. The side wall of the posterior compensation element includes an anterior region with an anterior height and a posterior region with a posterior height, the posterior height being greater than the anterior height.

Posterior compensation tibial tray

Growing community of inventors

Alexandria, VA, United States of America

Gerard A Engh