Knee implant

Abstract

A modular prosthetic device is provided for replacement of the knee. The device is assembled from a plurality of components, each of which can be inserted through a small incision. After inserting the components through the incision, the device can be assembled within the knee cavity. The modularity of the device enables a surgeon to replace only those regions of the knee that are diseased or damaged, thereby avoiding a complete knee replacement. If, at a later time, additional regions of the knee become diseased or damaged, those additional regions of the knee can be replaced by additional device components and those additional components can be connected to the previously implanted components. By replacing only those regions of the knee that are diseased or damaged and by implanting each of the components through the small incision, the surgery is minimally invasive and, therefore, requires reduced time for healing and rehabilitation.

Description

Technical field

[0001] The present invention relates to a prosthetic device and related methods for partial or total knee joint replacement. Background technique

[0002] It has become a common surgical procedure to partially or completely replace a necrotic and / or damaged knee joint with a suitable prosthesis. It has been found that the result of this surgical operation is advantageous in most cases, and this surgical operation has been regarded as a very advantageous surgical intervention for restoring the function of the knee joint damaged by trauma or degenerative disease. Every year, more than 650,000 patients around the world undergo surgery. Part or all of the knee joints are replaced by implants. These implants are usually able to work normally for 10 years or more.

[0003] The traditional implant design includes a tibial component and a femoral component supported on the tibial component. Femoral components are usually made of cobalt-based alloys and are used to replace...

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