Bone fracture plate for ulna and radius shaft

Abstract

The invention discloses a bone fracture plate for an ulna and radius shaft. Thebone fracture plate comprises a bone fracture plate body, the bone fracture plate body is in a long strip shape, the section of the bone fracture plate body is an arc-shaped face, the two ends of the bone fracture plate body are of fusiform structures, the end faces of the fusiform structures are in a smooth arc shape, and the bone fracture plate body is divided into a near joint section, a middle section and a far joint section. A far-end kirschner wire hole, a far-end locking hole and a sliding hole are sequentially formed in the far joint section, the far-end kirschner wire hole is located in the end of the far joint section, a plurality of middle locking holes are formed in the middle section, middle kirschner wire holes are formed between the adjacent middle locking holes, a plurality of near-end locking holes and near-end upper kirschner wire holes are formed in the near joint section, the near-end locking holes and the near-end upper kirschner wire holes are sequentially and alternately arranged along the near-joint section, and near-end lower kirschner wire holes are formed in the end of the near-joint section. The bone fracture plate is more suitable for the width-to-thickness ratio of the ulna and the radius, double-layer cortex fixation of the screw is facilitated, and the probability of complications is reduced.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a radial and ulna shaft bone plate. Background technique [0002] Radial and ulnar shaft fractures are often caused by severe violent trauma, especially falls from heights and serious traffic accidents. It may also be caused by a sudden fall during strenuous exercise, resulting in fractures. After a fracture, the continuity and integrity of the local bone is destroyed, causing local obvious pain, swelling and dysfunction. In severe cases, aggressive surgical treatment is required. The surgical method is mainly open reduction and internal fixation with plate screws. However, there are few bone plates specifically used for diaphysis fractures of the radius and ulna. Most of the bone plates used in clinical fractures of the radius and ulna are smaller models of the general-purpose LCP straight plate and metaphyseal plates. [0003] However, the general-purpose LCP str...

AI Technical Summary

Problems solved by technology

However, there are few bone plates specifically used for diaphyseal fractures of the ulna and radius. Most of the bone plates used in clinical ulna and radius fractures are the smaller models of the general-purpose LCP straight bone plate and the metaphyseal plate.

[0003] However, the general-purpose LCP straight bone plate and metaphyseal bone plate have the following disadvantages in the fixation of radial and ulnar shaft fractures: LCP straight bone plate is widely applicable to long bone diaphysis fractures. The width-to-length ratio of the LCP straight bone plate is larger than that of the radius and ulna, which is most suitable for the bone plate. In clinical applications, the bone plate is too wide relative to the bone, and it is not easy to determine that the screw path is exactly on the diameter of the bone section, which is not conducive to double cortex. It is fixed, and the two ends of the bone plate are easier to tilt; the LCP straight bone plate design will be thicker, while the stress demand of the radius and ulna is relatively low, and the complex muscles rarely found in the body are attached to the radius and ulna, so the thickness of the bone plate is higher. Wide, there is a volume effect after being placed in the body, which will increase the probability of forearm compartment syndrome; the anatomical characteristics of the ulna and radius are not only smaller, but their backbones also have more curved curvatures. The existing LCP straight bone graft The design of the plate cannot cope with this kind of arc change; and the metaphyseal plate is only suitable for diaphyseal fractures near the joint

Images