Novel bone fracture plate for tibia posterior lateral plateau

Abstract

Disclosed is a novel bone fracture plate for a tibia posterior lateral plateau which comprises a bone fracture plate body, the whole bone fracture plate body is in an L shape and is divided into a near plateau section and a far plateau section, the near plateau section is of an inwards-bent cambered surface structure and conforms to the anatomical structure characteristics of the tibia posterior lateral plateau, and the far plateau section is of an inclined surface structure and a plane structure. The inclined surface structure is smoothly connected with the near plateau section, the near plateau section is sequentially provided with near plateau kirschner wire holes and near plateau locking holes from top to bottom, and the near plateau locking holes are distributed in a row along the near plateau section. the far plateau section is sequentially provided with a far plateau upper kirschner wire hole, a far plateau upper locking hole, a far plateau lower locking hole and a far plateau lower kirschner wire hole from top to bottom. The width and the curvature are designed according to the anatomical structure of the posterior lateral platform of the tibia, and the invention is an anatomical locking plate and can be tightly attached to the bone cortex without intraoperative shaping, so that the strength of the bone fracture plate is not reduced, and the operation time is not prolonged.

Description

Technical field [0001] The present invention relates to the technical field of medical devices, and more particularly to a novel tibial outer platform bone plate. Background technique [0002] A typical injury mechanism of the outer fracture of the tibial platform is a knee joint to be rushed and axially jointly violent when buckling or semi-flexion. Due to the backward force of the flexural tibia platform, the outer cascade of the femur hits the outer side of the tibial platform, causing the site to fracture. The outer fracture of the tibial platform can occur alone or in combination with other part of the tibial platform. The outer fracture of the simple tibial platform is surrounded on the X-ray film, sometimes it is only lowered or increased for the outer tibial platform, which is easy to mishand. Clinically, when the outer fracture of the tibial platform is more severe, the fracture end is usually fixed in a manner in which the bone plate anatomy is fixed. There are many dis...

AI Technical Summary

Problems solved by technology

However, there are many disadvantages in the existing osteosynthesis plates for posterolateral fractures of the tibial plateau, for example: the head of the bone plate is not provided with a Kirschner wire hole, the bone plate cannot be temporarily fixed during the operation, it is difficult to initially locate the joint cavity, and it is easy to lock the bone plate. When the screw is placed in the joint cavity, it is not convenient to fix and suture when the joint capsule is torn; there is no Kirschner wire hole at the distal end of the bone plate, and when the proximal end is fixed, the distal segment tends to warp and does not fit the bone surface, which is not conducive to temporary fixation of the distal end and Determine the position of the bone plate; there is no Kirschner wire hole in the body of the long bone plate, and when the fracture range is large and comminuted, the small bone fragments cannot be fixed; except for the round head bone plate (mainly used for posterior cruciate ligament in tibia fracture at the insertion point) is the posterolateral fixed bone plate, currently there is no bone plate for posterolateral plateau fractures, most of the bone plates are posterior and lateral bone plates, and need to be shaped; the bone plate is equipped with more locking holes, It is easy to cause stress concentration and increase the risk of secondary fractures; there are no Kirschner wire holes in the body of the bone plate, and large point-type reduction forceps cannot be used for clamp reduction and fixation, which restores the width of the tibial plateau in the anteroposterior direction, which is not conducive to better Anatomical reduction is not conducive to the fit of bone and bone plate, and increases the risk of repeated drilling and screw placement during the operation; the length of bone plate setting is long, the surgical incision is large, and the patient is traumatized, which increases the risk of muscle, soft tissue, blood vessel and nerve injury

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