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Tibial prosthesis

A tibial and prosthesis technology, applied in the field of tibial prosthesis

Pending Publication Date: 2020-11-17
GENERAL HOSPITAL OF PLA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the face of proximal tibial bone defects caused by tumors, comminuted fractures, etc. (excluding tibial plateaus that are also damaged), knee replacement is often used at present. In knee replacement surgery, the knee joint (including The femoral condyle, tibial platform) and the necrotic tibial diaphysis are excised together, and then the artificial knee prosthesis is implanted. The defect of this approach is that most of the knee joint (including the femoral condyle and tibial platform) that is still in good health is abandoned. At the same time, the patient also loses the opportunity to keep the proximal tibia intact in the future when undergoing revision surgery.

Method used

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  • Tibial prosthesis

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Embodiment Construction

[0029] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0030] Such as figure 1 As shown, the embodiment of the present invention provides a kind of tibial prosthesis, comprises tibial platform support 1, and the end face shape of described tibial plate support 1 is adapted to the osteotomy end face shape of tibial proximal end, and described tibial plate support 1 The upper end surface of the tibial plateau 1 is provided with a columnar first intramedullary entity 2, and the first intramedullary entity 2 is inserted in the patient's tibial proximal end 7, and the lower end surface of the tibial plateau support 1 is provided with a support rod 3, the support The rod 3 is covered with a bone graft segment 8 and an extension ring 6 that is compatible with the bone graft segment 8. The bottom end of the support ...

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Abstract

The invention provides a tibial prosthesis, and belongs to the technical field of medical instruments. The tibial prosthesis comprises a tibial plateau support, wherein a first intramedullary entity is arranged on one side of the tibial plateau support, and a supporting rod is arranged on the other side of the tibial plateau support; the supporting rod is sleeved with an extension ring; the end ofthe supporting rod is connected with one end of a tibial segment; and a second intramedullary entity is arranged at the other end of the tibial segment. According to the scheme, the tibial prosthesismaintains the integrity of the tibial plateau and the knee joint of a patient while recovering the length and the function of the tibia, increases a long-term revision opportunity for the patient, provides a good bone foundation for the next revision operation faced by the patient in the future, and is matched with the extension rings with different specifications. The osteotomy length can be flexibly adjusted in an operation, and the tibial prosthesis can perfectly adapt to affected limbs of the patient.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a tibial prosthesis. Background technique [0002] The tibia is an important bone in the human body, and the tibial platform is even more important. People's knee bending, walking, activities, and labor are all completed by the knee joint composed of the tibial platform. In the face of proximal tibial bone defects caused by tumors, comminuted fractures, etc. (excluding tibial plateaus that are also damaged), knee replacement is often used at present. In knee replacement surgery, the knee joint (including The femoral condyle, tibial platform) and the necrotic tibial diaphysis are excised together, and then the artificial knee prosthesis is implanted. The defect of this approach is that most of the knee joint (including the femoral condyle and tibial platform) that is still in good health is abandoned. At the same time, the patient also lost the opportunity to keep the...

Claims

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Application Information

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IPC IPC(8): A61F2/38
CPCA61F2/389
Inventor 毕文志
Owner GENERAL HOSPITAL OF PLA
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