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Device for adjusting tibial posterior angle in high tibial osteotomy

A technique of osteotomy and retroversion, applied in the directions of surgery, application, bone drill guidance, etc., can solve the problem of inability to accurately determine the osteotomy angle of the tibial plateau retroversion angle, affecting the surgical effect, etc., and achieve the effect of improving the surgical treatment effect.

Active Publication Date: 2020-09-29
中国人民解放军联勤保障部队第九0九医院
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

During high tibial osteotomy, the tibial plateau retroversion angle cannot be accurately determined according to naked eye observation and clinical experience, which affects the surgical effect

Method used

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  • Device for adjusting tibial posterior angle in high tibial osteotomy
  • Device for adjusting tibial posterior angle in high tibial osteotomy

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] Examples, see figure 1 with figure 2 As shown, a device for positioning the center of the femoral head in high tibial osteotomy of the present invention includes a grip handle 1, a fixed support arm 2 and a rotatable support arm 3; one end of the fixed support arm 2 is fixed on the One end of the grip handle 1, the two are perpendicular to each other, the other end of the fixed arm 2 is provided with a second needle insertion sleeve 21; one end of the rotatable arm 3 is hinged on the grip handle 1 One end, the other end of the rotatable support arm 3 is rotatably connected to the fixed support arm 2 through a rotating member 31. Specifically, the fixed support arm 2 is provided with a fixed column 22, and the rotating member 31 There is an arc-shaped chute 32 on the top, and the arc-shaped chute 32 can be sleeved on the fixed column 22 to slide, so that the angle between the rotatable support arm 3 and the fixed support arm 1 can be adjusted, and the The rotating mem...

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PUM

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Abstract

The invention discloses a device for adjusting the tibial posterior angle in high tibial osteotomy. The device comprises a grabbing handle, a fixed supporting arm and a rotatable supporting arm, wherein one end of the fixed supporting arm is fixed to one end of the grabbing handle; one end of the rotatable supporting arm is hinged to one end of the grabbing handle; the other end of the rotatable supporting arm is rotatably connected to the fixed supporting arm through a rotating piece; scales are arranged on the rotating piece; and needle inserting sleeves are arranged at one end of the grabbing handle, the other end of the fixed supporting arm and the other end of the rotatable supporting arm respectively. According to the device in the invention, the posterior angle of a tibial plateau can be readjusted only by adjusting the included angle between the sleeves and determining a new osteotomy plane, so that the purpose of orthopedics is achieved.

Description

technical field [0001] The invention relates to a device for adjusting tibial retroversion angle in high tibial osteotomy. Background technique [0002] High tibial osteotomy is mainly aimed at medial unicompartmental osteoarthritis of the knee joint. It aims to change the mechanical axis of the lower limbs through osteotomy, correct the varus of the proximal tibia to mild valgus, shift the load-bearing area outward, and relieve the pain of the knee joint. The pressure on the medial compartment relieves the patient's symptoms and prevents further damage to the damaged cartilage, which is an important part of the step-by-step treatment of the knee joint. In some patients, due to congenital deformities or acquired factors, abnormal tibial retroversion angles affect the knee joint flexion or extension function, resulting in knee joint dysfunction. During high tibial osteotomy, the tibial plateau retroversion angle cannot be accurately determined according to naked eye observat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/17A61B90/00
CPCA61B17/1732A61B90/06A61B2090/067
Inventor 周亮徐维臻林伟长黄宇敏
Owner 中国人民解放军联勤保障部队第九0九医院
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