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Cruciform Retained Tibial Prosthesis

A tibia and prosthesis technology, applied in the field of orthopedic prosthesis system, can solve the problems of tibial carina failure, enlargement, damage to the strength of the area below the tibial carina, etc.

Active Publication Date: 2018-03-06
MAKO SURGICAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can compromise the strength of the area below the tibial eminence, which can lead to an increased chance of tibial eminence failure

Method used

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  • Cruciform Retained Tibial Prosthesis
  • Cruciform Retained Tibial Prosthesis
  • Cruciform Retained Tibial Prosthesis

Examples

Experimental program
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Embodiment Construction

[0038] Reference will now be made in detail to the exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0039] A healthy knee joint consists of the junction between the distal femur and the proximal tibia. If a healthy knee has been damaged, for example, by injury or disease, knee surgery may be required to restore the joint's normal structure and function. If the damage to the knee is severe, total knee arthroplasty ("TKA") may be required. TKA typically involves removal of the damaged portion of the joint and replacement of the damaged portion of the joint with one or more prosthetic components.

[0040] In some TKA procedures, one or more cruciate ligaments (including the anterior and / or posterior cruciate ligaments) may not have been damaged and said cruciate ligaments will be re-used to form ...

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PUM

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Abstract

A tibial prosthesis (120) includes a medial base (121a) configured to engage the medial surface of the tibia and a lateral base (121b) configured to engage the lateral surface of the tibia. At least a portion of the medial base and the lateral base are separated by a channel (138) therebetween. The tibial prosthesis also includes a bridge (125) connecting the medial and lateral bases, wherein at least a portion of the bridge is elevated above a portion of the channel between the medial and lateral bases. The bridge can define a base area that receives at least a portion of the tibial eminence when the tibial prosthesis is engaged with the tibia, wherein the height of the bridge varies in a superior direction across the tunnel.

Description

field of invention [0001] The present invention relates generally to orthopedic prosthesis systems for use in knee replacement surgery, and more particularly to tibial prostheses for use in cruciform-retaining knee arthroplasty. Background technique [0002] The knee joint consists of the junction between the distal femur and the proximal tibia. In a properly functioning knee joint, the medial and lateral femoral condyles pivot smoothly along the menisci attached to the respective medial and lateral condyles of the tibia. When the knee joint is damaged, the natural bone and cartilage that form the joint may not articulate properly, which can cause joint pain and, in some cases, prevent the joint from functioning properly. [0003] In some cases, surgery is required to restore normal use of the joint and reduce pain. Depending on the severity of the damage, surgery may involve partial or complete replacement of the joint with prosthetic components. During knee replacement ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/38
CPCA61F2/389A61F2/38
Inventor R·R·欧文J·K·奥托A·Z·阿巴西M·E·纳德扎迪
Owner MAKO SURGICAL CORP
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