Osteotomy double-guide-plate system for high tibial osteotomy

Abstract

The invention discloses an osteotomy double-guide-plate system for high tibial osteotomy. The osteotomy double-guide-plate system comprises a fibula head end positioning frame, a tibia end positioningframe, a tibia osteotomy guide plate connecting rod, a horizontal osteotomy guide plate and an upper oblique osteotomy guide plate with the same shape as the horizontal osteotomy guide plate. The horizontal osteotomy guide plate and the upper oblique osteotomy guide plate are combined for horizontal and upper oblique osteotomy, the osteotomy effect is good, and universality is high; and the osteotomy double-guide-plate system is simple in structure, low in cost and easy to popularize and use on a large scale.

Description

technical field [0001] The invention belongs to the technical field of medical machinery, and in particular relates to an osteotomy double guide plate system for high tibial osteotomy. Background technique [0002] High tibial osteotomy is an important surgical procedure for the treatment of early and mid-stage knee osteoarthritis caused by proximal tibial varus. Although this surgical technique has been used clinically for a long time, it has been criticized a lot due to the restriction of factors such as the early osteotomy method and the stiffness of implants. In recent years, the AO organization ("International Society for Internal Fixation Research") has improved and standardized the operation method, and applied a special medial tibial bone plate, making high tibial osteotomy re-developed in the global orthopedic field. The joint steps of this operation are Kirschner wire positioning, osteotomy position, osteotomy quality and safety, and alignment confirmation. Among...

AI Technical Summary

Problems solved by technology

[0007] 1. Traditional Kirschner wire positioning has low accuracy and takes a long time, and often requires repeated fluoroscopy adjustments, which increases the radiation exposure of both doctors and patients

[0008] 2. Unable to perform accurate, safe and effective osteotomy

Osteotomy needs to be close to the Kirschner wire, because the direction and position of the Kirschner wire cannot be accurately judged in the bone, osteotomy deviation will occur

The existence of this osteotomy deviation will increase trauma and increase the risk of complications such as fractures

[0009] 3. 3D printed osteotomy guides require CT scans of the lower extremities, and there is a lot of radiation exposure; equipment manufacturers need to make 3D osteotomy guides, which takes a long period of time and high cost; and the osteotomy guides are only suitable for the individual and are not universal

[0010] 4. Navigation technology requires expensive navigation equipment, which cannot be equipped in general hospitals

Because it is difficult to confirm that important structures are blocked directly behind the osteotomy site, it is difficult to ensure the safety of the posterior blood vessels and nerves

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