Dissection locking plate

Abstract

The invention discloses a dissection locking plate and relates to the field of medical tools. The dissection locking plate comprises a locking plate near end, a locking plate far end and a locking plate body which connects the locking plate near end and the locking plate far end, wherein the locking plate near end is in a Y shape; the dissection locking plate also comprises a bone contact surfacewhich is matched in shape with the inner surface of proximal humerus; the locking plate near end, the locking plate far end and the locking plate body are all provided with a plurality of fixing holesfor fixing the d dissection locking plate inside the proximal humerus. The dissection locking plate is arranged inside the proximal humerus to fix the inside of humerus to provide strong internal column bracing, to resist varus stress and to significantly enhance internal fixation biomechanical strength, thereby solving the problem that an existing outer d dissection locking plate is prone to leading to varus and collapse of humerus and the problems of internal fixation breakage and excision incidence rate; the number of the fixing holes in the locking plate near end can be selected accordingto fracture situation to achieve good effects; the d dissection locking plate can provide powerful internal column bracing to resist varus stress.

Description

technical field [0001] The invention relates to the field of medical tools, in particular to an anatomical locking plate. Background technique [0002] The humerus is located in the upper arm, also known as the upper arm bone, and its proximal end is the hemispherical head of the humerus, which forms the shoulder joint with the glenoid of the scapula. Proximal humeral fracture is a common fracture with an incidence rate of about 2.5% of all fractures in the whole body. It is more common in young adults with high-energy trauma and elderly fractures with loose fractures. The purpose of treatment is to restore the function of the shoulder joint to the maximum extent. The healing of conservative treatment is often unsatisfactory, and the previous internal fixation technology is difficult to achieve strong stability so that the shoulder joint can perform early and safe functional exercises, especially for comminuted fractures of the proximal humerus. There are many options and co...

AI Technical Summary

Problems solved by technology

The medial column of the plate is supported by locking screws or bone moment screws, but during clinical follow-up, when osteoporosis or medial column comminuted lacks bony support, it is easy to cause humeral head varus, collapse, internal fixation fracture, and cut out.

The reasons for the failure of the lateral anatomical locking plate are: 1. Biomechanical stability problems, the resistance to varus stress is still weak, resulting in internal fixation failure; 2. Avascular necrosis of the humeral head, fractures lead to damage to the blood supply of the humeral head

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