Orthopedic tibial osteotomy guide

Abstract

The invention provides a correction and osteotomy guiding device for a tibia. The device is arranged at the near end of the tibia of a patient to guide the correction and osteotomy of the near end ofthe tibia, and comprises a cutting guide plate matching with the tibia of the patient and a positioning block detachably inserted to the cutting guide plate, the cutting guide plate comprises a firstmain body and a second main body located under the first main body, the first body is provided with a first binding surface matched with the tibia, the second main body is provided with a second binding surface matched with the tibia, the first main body further comprises a first guiding edge, the second main body further comprises a second guiding edge, the positioning block is arranged to be a plate, and comprises a body and a positioning part protruding outwards from the body, the positioning part is in clamping connection with the first guiding edge of the first main body, and the positioning part is inserted to the second guiding edge of the second main body. The positioning block is used to guide the spreading height of a spreader, so the accuracy of an operation is improved, the difficulty of the operation and the dependence on the doctor's experience are reduced, and the radiation harms during the operation are reduced.

Description

【Technical field】 [0001] The invention relates to the field of medical instruments, in particular to a tibial orthopedic osteotomy guiding device. 【Background technique】 [0002] High tibial osteotomy (high tibial osteotomy, HTO) has been applied to the treatment of knee medial compartment osteoarthritis (osteoarthritis, OA). Compared with traditional total knee arthroplasty, HTO can effectively preserve knee femur, tibia As well as articular surfaces such as the patella, it is therefore particularly suitable for younger patients. HTO is divided into closed wedge HTO and open wedge HTO. Since closed wedge HTO is prone to complications such as compartment syndrome, lateral muscle separation, proximal fibular transection, limb shortening, and peroneal nerve injury, open wedge HTO is more likely to obtain favorable surgical outcomes. After effects, and a large number of clinical studies have proved its efficacy. In the traditional medial open wedge HTO, doctors rely on clinic...

AI Technical Summary

Problems solved by technology

In the traditional medial open wedge HTO, doctors rely on clinical experience and existing measurement tools to perform osteotomy operations, resulting in a high degree of dependence on the doctor's experience in the accuracy of osteotomy and correction. In addition, frequent X-ray fluoroscopy measurements during the operation , also increases radiation hazards for patients and physicians

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