Humerus external fixator

Abstract

The invention discloses a humerus external fixator. The humerus external fixator comprises an upper protective arm and a lower protective arm, the middle of the upper protective arm and the middle ofthe lower protective arm are provided with grooves protruding outwards, both the upper protective arm and the lower protective arm are provided with a plurality of through holes, the through holes inthe lower protective arm are provided with internal threads, fastening bolts and screws are installed in the through holes in the upper protective arm and the lower protective arm, and external threads of the fastening bolts and the screws correspond to the internal threads in the lower protective arm. The humerus external fixator has the advantages that the fixator can effectively and firmly fixthe proximal end of the fractured humerus in an operation, and the operation can be smoothly completed by two persons or even one person; and in addition, only the position of a C-shaped arm needs tobe adjusted for fluoroscopy in the operation, and the operation time can be saved. Nowadays, pediatric surgeons are deficient, and the fixator can effectively save manpower, and reduce harm of intraoperative fluoroscopy to a human body.

Description

technical field [0001] The invention relates to an orthopedic medical device, in particular to a humerus external fixator. Background technique [0002] Supracondylar humerus fractures are the second most common fracture in children, accounting for nearly 60% of all pediatric elbow fractures. The supracondylar humerus refers to the junction of cancellous bone and solid bone 2 cm above the inner and outer condyles of the lower end of the humerus. The front and back of this place are flat and thin, relatively weak, and easy to fracture. Supracondylar fracture of the humerus is one of the most common fracture types in children, with an incidence rate of about 16.6%, especially in children under the age of 7 to 8, and it is also the most common elbow fracture. Elbow varus and valgus deformity is a late postoperative complication of supracondylar humeral fractures, and improper treatment can lead to permanent disability. [0003] Among the supracondylar humerus fractures in ch...

AI Technical Summary

Problems solved by technology

Closed reduction has fewer complications (such as Kirschner wire nail tract infection, severe loss of function, etc.); some studies have found that the operation time of closed reduction is shorter; closed reduction avoids the formation of scars to obtain better joint function, and open Relatively long hospital stay for reduction; some studies suggest that open reduction is more likely to cause joint stiffness

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