Other

Limacorporate S.p.a.

New York Society for the Ruptured and Crippled Maintaining the Hospital for Special Surgery

New York Society for the Relief of the Ruptured and Crippled,

The Dana Center for Orthopaedic Implants

New York Society for the Relief of the Ruptured and Crippled, Maintaining the Hospital for Special Surgery

Thomas P Sculco

Joseph David Lipman

Michele Pressacco

Bruce H Robie

Albert H Burstein

John David Blaha

Jordan L Ryalls

Christoph Fiedler

Timothy M Wright

Darrick Lo

Fabio Catani

Jordan Ryalls

Sam Delgado

Vojko Milin

Ivan De Martino

Fernando J Quevedo Gonzalez

A tibial baseplate for tibial component of a knee prosthesis including: a bulk solid portion including a proximally facing surface adapted to accommodate a bearing element for the articulation of a femoral component of the knee prosthesis; a plurality of porous portions integral with the bulk solid portion having a porous portion contacting surface opposite to the proximally facing surface adapted to contact a proximal tibia. Advantageously, the plurality of porous portions are seamlessly incorporated and embedded in the bulk solid portion.

Tibial baseplate for tibial component of a knee prosthesis, tibial component comprising the tibial baseplate and method for manufacturing the tibial baseplate

An instrument is provided for use in shaping a femur preparatory to implantation of a knee prosthesis. A gap checking device is fixed to the distal end of the patient's femur and referenced to the epicondyles of the femur. The gap checking device includes slots through which a cutting instrument can be passed to shape the femur so that it can receive the femoral component of the prosthesis. One of the slots enables the distal femoral cut to be made. The thickness of the gap checking device is selected so that the distance between the distal femoral cut and the distal surface of the gap checking device plus the thickness of a shim resting on the cut proximal tibia surface is equal to the combined thickness of the tibial and femoral components of the prosthesis. This enables balancing of the ligaments to be checked before the femoral cuts are made, but while the gap checking device is secured to the femur.

Method and apparatus for femoral resection

A clamp device, cutting guide, and clamp slider used together in preparation to cutting of the distal end of the femur bone during total knee replacement surgery. The clamp device includes an upper arm and a lower arm rotatably secured to one another in a scissor-like manner. A curved movable component is rotatably secured to the proximal end of the lower arm. The clamp device is positioned around a portion of the distal end of the femur bone so that the distal end of the upper arm grasps a posterior ridge of the femur bone and the movable component of the lower arm is positioned along the contour of the deepest part of the trochlear groove, thereby defining a plane through the deepest part of the trochlear groove of the femur bone. Next, a clamp slider is removably secured to a cutting guide so that channels defined in the clamp slider and cutting guide are substantially aligned with one another. The assembled clamp slider and cutting guide are then slid over the clamp and rotated until the clamp is received in the channels with the cutting guide in contact with an anterior portion of the femur bone. Then the cutting guide is positioned so that arms projecting from each side are substantially aligned with a center of the medial or lateral epicondyle of the femur bone. Lastly, the clamp slider and clamp are removed, whereby the cutting guide remains properly aligned on the femur bone in order to ensure the correct angle of the cuts in the femur bone.

Trochlear clamp

A patella resection and replacement device comprising a pliers-like clamp for gripping and holding the patella, the clamp having a spring biased hinge bolt. A specially designed drill guide may be snapped into place and removed from the hinge bolt without releasing the patella during surgery. Similarly, a specially designed patella button presser may be snapped into place and removed from the hinge bolt. Without the necessity of releasing, re-gripping and re-orienting the patella during the process, the time for the operation is greatly reduced.

Patella resection drill and prosthesis implantation device

A prosthesis for replacement of the first metatarsal-phalangeal articulation comprises a metatarsal component and a phalangeal component. The metatarsal component has a convex articulating surface and concave distal aspect, the metatarsal articulating surface being curved so as to approximate the natural articular surface of the first metatarsal bone and furthermore to articulate smoothly with the phalangeal articulating surface of the phalangeal component. The phalangeal component comprises a base member and an insert, the base member having a distal aspect adapted to engage and be secured to a resected end of the phalanx bone and also having a proximal aspect adapted to receive and have permanently attached thereto the insert. The insert, which includes the phalangeal articulating surface, is made available in various distal-proximal thicknesses, and an appropriately sized insert is selected during implantation so as to cause the tension in the natural soft tissue surrounding the prosthesis after implantation to approximate the tension of the soft tissue of the natural metatarsal-phalangeal articulation.

Metatarsal-phalangeal prosthesis

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New York, NY, United States of America

Thomas P Sculco