Blade plate for posterolateral fractures of tibial plateau

Abstract

The invention discloses a blade plate for posterolateral fractures of tibial plateau, which belongs to the technical field of orthopedic medical apparatuses and instruments, and is used for fixing posterolateral fractures of tibial plateau. The technical scheme of the invention is as follows: the blade plate is composed of a straight plate and a skew plate, wherein the straight plate and the skew plate are respectively an elongated plate, the skew plate is connected to the upper end of the straight plate, the plate surface of the skew plate obliquely extends to the obliquely upward side of the plate surface of the straight plate, the inclined angle of the plate surface of the skew plate is matched with the posterolateral curved surface of the upper tibia shin, and 2-4 fixed screw holes are uniformly distributed on the straight plate along the length of the straight plate. According to the invention, during operation, the blade plate is conveniently implanted through a conventional anterolateral operative incision which is small in damage and easy to operate, the straight plate is fixed on a tibia by a bolt, and the skew plate avoids important anatomical structures such as fibular heads, posterolateral complexes and anterior tibial arteries and the like which affect the reposition fixation of fractures, so that the possibility of causing damages is greatly reduced. According to the invention, a complex operation problem is solved in a simple and convenient mode, and no medical cost is increased, so that the blade plate benefits doctors and patients, therefore, the blade plate has an excellent promotion and application prospect.

Description

technical field [0001] The invention relates to a bone plate for surgical treatment of posterolateral fractures of the tibial plateau, which belongs to the technical field of orthopedic medical devices. Background technique [0002] Posterolateral tibial plateau fractures refer to fractures involving the posterior half of the lateral tibial condyle, manifested as collapse and splitting, which can be single or combined with fractures of the medial tibial condyle or metaphysis at the same time. The reason is that the knee joint is in flexion It is caused by valgus force and axial compressive stress. With the widespread application of CT diagnosis of tibial plateau fractures, the diagnostic rate of posterolateral tibial plateau fractures has been increasing, accounting for about 7% of tibial plateau fractures. For posterolateral fractures of the tibial plateau, conservative treatment cannot restore the height of the posterolateral articular surface, resulting in valgus instabi...

AI Technical Summary

Problems solved by technology

[0004] When the posterior support plate is used for fixation, because the position is deep, the conventional anterolateral approach cannot well reveal, reduce and fix the fracture, so the internal fixation plate currently used in clinical practice is required to be inserted from the rear

In recent years, some scholars at home and abroad have explored some new approaches, such as posterolateral approach, posterolateral inverted "L" approach, and transfibula osteotomy approach. The incision is large, the anatomical structure is complex, the operation is difficult, and it is easy to cause serious damage to the nerves and blood vessels. It artificially increases the trauma of the patient, and may cause iatrogenic damage to the posterolateral complex that maintains the stability of the posterolateral knee joint. Potential risk of articular cartilage degeneration or damage to important anatomical structures such as the anterior tibial artery

At present, the treatment of posterolateral tibial plateau fractures has not yet reached a consensus, which has become a difficult point in orthopedic treatment

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