Humerus anterolateral bone fracture plate

Abstract

Disclosed is a humerus anterolateral bone fracture plate comprising a bone fracture plate body, the bone fracture plate body is divided into a bone fracture plate body near end, a bone fracture plate body middle section and a bone fracture plate body far end, the bone fracture plate body far end is of an inclined face structure, and the bone fracture plate body near end is provided with a near end kirschner wire hole, a near end locking hole and a near end sliding hole from top to bottom; middle section locking holes and middle section sliding holes are formed in the middle section of the bone fracture plate from top to bottom, a middle section kirschner wire hole is formed between every two adjacent middle section locking holes, and a far-end locking hole, a far-end sliding hole, a far-end lower locking hole and a far-end lower kirschner wire hole are sequentially formed in the far-end of the bone fracture plate from top to bottom. The number of the far-end locking holes is multiple, and a far-end kirschner wire hole is formed between every two adjacent far-end locking holes. The bone fracture plate is the humerus anterolateral bone fracture plate, an approach is performed from the anterior-lateral, and risks of exposing and dissociating radial nerves and the like and interference of soft tissues such as triceps brachii muscles and the like during posterior approach can be avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an anterolateral humeral bone plate. Background technique [0002] When subjected to external impact or cumulative strain, the continuity of the bone structure may be completely or partially broken, that is, a fracture occurs. In order to ensure the connection and fixation of the broken ends of the bone and ensure the normal healing of the fracture, we use the method of fixing the bone plate in the body for treatment. At present, there are few types of bone plates dedicated to the treatment of midshaft humerus fractures. There are only proximal lateral humeral plate and distal humeral posterior plate, and no anterolateral humeral plate has been used clinically. However, there are many shortcomings in the lateral bone plate of the proximal end of the humerus and the posterior bone plate of the distal end of the humerus. In more complicated fractures, the bone fragments i...

AI Technical Summary

Problems solved by technology

At present, there are few types of bone plates dedicated to the treatment of midshaft humerus fractures. There are only proximal humeral lateral bone plates and distal humeral posterior bone plates, and no anterolateral humeral bone plates have been used clinically.

However, there are many shortcomings in the lateral bone plate of the proximal end of the humerus and the posterior bone plate of the distal end of the humerus. In more complicated fractures, the bone fragments in the adjacent parts cannot be fixed, which is not conducive to the anatomical reduction of the fracture and the fixation of the bone plate; in addition, when the bone plate is placed for a long time, the middle section and the distal end of the bone plate are in contact with the outer side of the middle and distal ends of the humerus. There will be a large gap between them, which may lead to radial nerve injury due to the increase in volume effect, resulting in clinical manifestations such as wrist sagging. If the distal end of the bone plate is shaped and rotated to the middle and distal humerus Fixing the front side of the bone can avoid the increase of the volume effect, but this kind of bone plate is thicker and longer, and there is no through groove specially used for shaping, which makes shaping very difficult, and the strength of the bone plate after shaping It is also greatly reduced, which is not conducive to the stable fixation of the fracture site; the bone plate is not equipped with a separate sliding hole, it cannot be fine-tuned up and down, and cortical bone screws cannot be inserted to play a role of pressure or tension, which is not conducive to the bonding and dissection of the bone and bone plate reset

There are a certain number of binding and locking holes in the middle part of the bone plate and the distal end of the joint. The selection of holes and screws in the operation depends on the experience of the doctor. Improper selection may increase the risk of secondary fractures; the bone plate on the posterior side of the distal humerus There are no Kirschner wire holes at the proximal and distal ends, and Kirschner wires cannot be used for temporary fixation of the bone plate, and the distance from the bone plate to the articular surface cannot be estimated, and cannot provide a reference for driving locking screws into the locking holes

The bone plate is not equipped with two independent sliding holes, which cannot be fine-tuned up and down, and cortical bone screws cannot be inserted to exert tension on the bone, which is not conducive to bone and bone plate fit and anatomical reduction

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