A fixation system for tibiofibular separation

Abstract

The embodiment of the invention provides a fixing method for treating distal tibiofibular separation. The fixing method comprises the steps that a tunnel is drilled in a tibia and a fibula; a first steel plate is provided and fixed to the outer side of the tibia, and a first through hole and a second through hole are distributed in the longitudinal axis of the first steel plate; a suture line is stretched to penetrate through the first through hole and the second through hole, and the suture line is drawn to pass through the tunnel to the outer side of the fibula; the suture line has a free end, and the length of a line ring composed of the suture line can be adjusted through the free end; a second steel plate is provided and arranged on the outer side of the fibula, the second steel plate is provided with a first gap and a second gap, and the suture line is sleeved with the first gap and the second gap; the free end of the suture line is tightened to the tibia and the fibula for tight fixation, and the second steel plate is fixed to the outer side of the fibula. Through the method, adjustment is convenient, stable inner fixation of distal tibiofibular syndesmosis is realized, and meanwhile normal physiological activities of distal tibiofibular syndesmosis are met.

Description

technical field [0001] The embodiment of the present invention relates to the field of medical technology, in particular to a method for fixing inferior tibiofibular separation. Background technique [0002] The ankle joint bears a lot of load in people's standing, walking, running and jumping postures, and the inferior tibiofibular joint plays an important role in maintaining the integrity and stability of the ankle joint. Ankle joint injuries are often accompanied by tibiofibular separation. The fixation of such injuries is mainly by using inferior tibiofibular screws and bolts. There are certain disadvantages of inferior tibiofibular screws, such as screw loosening and breakage, especially before walking on the ground. Take out the screws to avoid screw breakage, etc., and the strong screw fixation is not conducive to the repair of the physiological healing characteristics of the ligament itself; in the past, there are fixation devices such as inferior tibiofibular bolts ...

AI Technical Summary

Problems solved by technology

Ankle joint injuries are often accompanied by tibiofibular separation. The fixation of such injuries is mainly by using inferior tibiofibular screws and bolts. There are certain disadvantages of inferior tibiofibular screws, such as screw loosening and breakage, especially before walking on the ground. Take out the screws to avoid screw breakage, etc., and the strong screw fixation is not conducive to the repair of the physiological healing characteristics of the ligament itself; in the past, there are fixation devices such as inferior tibiofibular bolts that are fixed by drilling holes transversely on the tibiofibular bone and tightening the nuts In this fixation process, the part of the threaded rod that exceeds the nut needs to be cut off the exposed bolts on the bone by means of strong shears, which not only easily causes mechanical damage to the affected area, but also is more complicated to operate, and there are still a few exposed bolts that cannot be completely removed. , abrasion of skin and other soft tissues, causing certain pain to the patient

At the same time, the fibula has a certain amount of movement relative to the tibia, and the strong internal fixation will hinder the normal physiological activities of the lower tibia and fibula, so that the ankle joint cannot be exercised early, and even cause bone compression necrosis, screw loosening or even screw breakage, and the operation fails.

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