Tibia correcting device for treating knee-osteoarthritis varus-valgus deformities

A technology for osteoarthritis and knee joints, applied in the field of orthopedic medical devices, can solve problems such as increasing treatment costs and increasing patient pain, and achieve the effects of reducing treatment costs, avoiding pain, and correcting lateral tibial displacement

Pending Publication Date: 2019-06-28
THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of this fixation method is that it requires a second operation to remove the bone plate, which not on

Method used

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  • Tibia correcting device for treating knee-osteoarthritis varus-valgus deformities
  • Tibia correcting device for treating knee-osteoarthritis varus-valgus deformities
  • Tibia correcting device for treating knee-osteoarthritis varus-valgus deformities

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Embodiment Construction

[0035] The present invention provides an external fixation device for the limitation of the need to use a built-in bone plate when the existing high proximal tibial osteotomy is used to treat knee osteoarthritis accompanied by varus deformity or valgus deformity. The device does not need to be taken out by secondary surgery, and it has the function of controllably correcting complications such as lateral displacement and poor rotation alignment, which can ensure a good therapeutic effect.

[0036] see image 3 , the present invention mainly includes a telescopic stretching rod 5, a side shift correction rod 10, a ligament strut 15, an auxiliary strut 22, a rotation correction rod 25, seven schantz nails (the first schantz nail 8, the second schantz nail 9, the second schantz nail Three schantz nails 13, fourth schantz nails 14, fifth schantz nails 17, sixth schantz nails 20 and seventh schantz nails 23) and nine adjustable fasteners (first adjustable fastener 6, second adjusta...

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Abstract

The invention discloses a tibia correcting device for treating knee-osteoarthritis varus-valgus deformities. The tibia correcting device comprises a telescopic stretching rod, two schantz nails and two adjustable fastening devices, wherein the first schantz nail penetrates through the side, needing to enlarge an osteotomy seam, above an osteotomy line of the tibia, and the second schantz nail penetrates through the lower-portion diaphysis of the osteotomy line of the tibia; one end of the telescopic stretching rod is connected with the first schantz nail through the first adjustable fasteningdevice, and the other end of the telescopic stretching rod is connected with the second schantz nail through the second adjustable fastening device. According to the tibia correcting device for treating knee-osteoarthritis varus-valgus deformities, a knee-osteoarthritis varus or valgus deformity is corrected in an external-fixing manner, the device is taken out without a secondary operation, a treating effect of the varus or valgus deformity can be guaranteed, pains caused by the secondary operation to patients can be avoided, and the treatment cost of knee osteoarthritis is reduced.

Description

technical field [0001] The invention relates to a tibial correction device used for treating varus and varus deformities of knee joint osteoarthritis by high proximal tibial osteotomy, and belongs to the technical field of orthopedic medical appliances. Background technique [0002] Knee osteoarthritis is a common chronic osteoarthritis among middle-aged and elderly people, accounting for about 40% of all types of osteoarthritis. The main clinical manifestations are pain, stiffness, and limited mobility of the knee joint. The main lesions are articular cartilage degeneration and secondary bone hyperplasia. The etiology and pathogenesis have not been fully elucidated. It is now believed that biological factors (heredity, age, inflammation) and mechanical damage cause articular cartilage destruction to cause knee biomechanics. related to the changes. [0003] The onset time of knee osteoarthritis is around 20 years old, and most of them are asymptomatic, but the incidence rat...

Claims

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Application Information

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IPC IPC(8): A61B17/64A61B17/66
Inventor 王娟吕红芝田洪涛陈伟张英泽
Owner THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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