Fork-shaped bone fracture plate for treating dislocation of sternoclavicular joint

Abstract

The invention relates to a fork-shaped bone fracture plate for treating dislocation of a sternoclavicular joint, and belongs to the technical field of orthopedic medical instruments. The fork-shaped bone fracture plate is used for repositioning and fixing a breast bone and a collar bone in an operation of dislocation of the sternoclavicular joint. The technical scheme is that: the fork-shaped bone fracture plate consists of a plate body and a fixing fork, wherein the plate body is an elongated plate; a plurality of fixing screw holes for fixing the breast bone and the collar bone are distributed on the plane of the plate body; the fixing fork is a bent thin cylinder and consists of a root part and a fork body; the root part is vertically fixed at one end of the plane of the plate body; the fork body is straight, is positioned above the plane of the plate body and is parallel to a long axis of the plane of the plate body; and the front end of the fork body is sharp, while the rear end is connected with the root part. The fork-shaped bone fracture plate has the advantages of simple operation, safety, no damage to important organizational structures behind the breast bone and the collar bone under orthoptic operation, stable fixation and good joint reliability; the plate body accords with anatomical features of the sternoclavicular joint; and the fork-shaped bone fracture plate is reliably fixed after being fixed with screws, and is favorable for carrying out early functional exercise, and repairing and rebuilding damaged sternoclavicular joint capsule, sternoclavicular ligaments and costoclavicular ligaments.

Description

technical field [0001] The invention relates to a bone plate for treating sternoclavicular joint dislocation, belonging to the technical field of orthopedic medical devices. Background technique [0002] The sternoclavicular joint is the only joint that connects the upper limb to the trunk. The articular surface of the clavicle is usually larger than that of the sternum, and both are covered by fibrocartilage. The inner end of the clavicle is enlarged and spherical, forming a plane joint with the clavicular notch of the sternum, and the articular surfaces of the two do not match each other, and there is an articular disc in between. The sternoclavicular joint lacks bony stability and is easily dislocated, making it one of the most unstable of the major joints in the human body. According to anatomical measurements, the front-to-back and left-right diameters of the articular surface of the sternoclavicular joint are all above 2cm. The stability of the sternoclavicular joint...

AI Technical Summary

Problems solved by technology

[0008] To sum up, the curative effect of current treatment methods is not satisfactory, and there are some complications. The main disadvantages of these methods are:

[0009] 1. It is often easy to reset, difficult to maintain, and often left with subluxation deformities, etc.;

[0010] 2. When the upper limbs move, due to the huge leverage force acting on the fixture, the fatigue fracture and displacement of the traditional steel wire and Kirschner wire internal fixation are very common, and even the needle is displaced and penetrated to the mediastinum and heart , the lungs and great vessels are life-threatening, or subluxation may gradually occur due to the continuous effect of shear force, resulting in failure of internal fixation;

[0011] 3. Resection of the inner end of the clavicle often leaves a large bone defect, and the costoclavicular ligament is resected, making the clavicle and the first rib unstable, and the patient has severe pain and other symptoms after surgery;

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