Movable joint spacer for infection after total knee replacement

A knee joint replacement and spacer technology, applied in the direction of knee joints, elbow joints, joint implants, etc., can solve problems such as physical injury and economic loss, achieve the effects of reducing scars, improving quality of life, and simple production process

Inactive Publication Date: 2013-01-09
青岛城阳古镇正骨医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In orthopedic replacement surgery, infection after artificial knee replacement is an unavoidable complication of artificial knee replacement, which will cause great mental pain to the patient, great harm to the body, and great worry to the family. It has caused great economic losses, and it has also caused great pressure on doctors

Method used

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  • Movable joint spacer for infection after total knee replacement
  • Movable joint spacer for infection after total knee replacement
  • Movable joint spacer for infection after total knee replacement

Examples

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 , 2 As shown in , 3, a movable joint spacer for infection after knee joint replacement, it includes a femoral component 1 and a tibial base 2, the femoral component 1 is approximately in the shape of a "U" shape, and the bottom has an external contact surface 6 The tibial base 2 is approximately in the shape of a horseshoe, and the top has an inner contact surface 5; the outer contact surface 6 and the inner contact surface 5 are polished, and have an excellent surface with a low coefficient of friction to provide joint mobility.

[0019] In use, the surgeon first removes the previously infected joint prosthesis and cleans the joint space, then selects the femoral component 1 and the tibial base 2 suitable for the patient to install in the space where the joint prosthesis is removed, and the surgeon passes the femoral component 1 thro...

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PUM

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Abstract

The invention discloses a movable joint spacer for infection after total knee replacement. The movable joint spacer for the infection after the total knee replacement is characterized by comprising a thighbone element and a shin bone substrate, wherein the thighbone element and the shin bone substrate are mutually connected in the manner of joint. The thighbone element and the shin bone substrate are respectively made of bone cement. A good amount of antibiotic is added when the thighbone element and the shin bone substrate are manufactured. The invention provides the movable joint spacer for the infection after the total knee replacement, which can be directly implanted into a knee joint by a surgeon because of reasons of septicopyemia or disinfection failure and can enable the knee joint to be movable and be high in strength.

Description

technical field [0001] The invention relates to an orthopedic implant, in particular to a movable joint spacer for infection after knee joint replacement. Background technique [0002] In orthopedic replacement surgery, infection after artificial knee replacement is an unavoidable complication of artificial knee replacement, which will cause great mental pain to the patient, great harm to the body, and great worry to the family. It has caused great economic losses, and it has also caused great pressure on doctors. At present, the treatment method for infection after artificial knee replacement is as follows: firstly remove the original prosthesis and thoroughly debride the wound, then use a hand-prepared bone cement block containing antibiotics as a temporary knee joint blocker to place it on the joint for disinfection, and wait until the infection is controlled. Afterwards, a new artificial knee joint was inserted again. Utilizing this hand-made bone cement block as a tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38
CPCA61F2/38A61F2002/30001
Inventor 赵振洪于野陈诗本陈书本
Owner 青岛城阳古镇正骨医院
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