Radius head comminuted fracture in-pile fixing device and method

Abstract

The invention relates to the technical field of medical apparatuses and instruments, particularly to a radius head comminuted fracture in-pile fixing device and method. The radius head comminuted fracture in-pile fixing device and method adopts metaphysis fracture intramedullary fixation principles. The radius head comminuted fracture in-pile fixing device is characterized by comprising prismaticfixing nails, an intramedullary fixing pile and a ring-shaped fixing strap. By repairing radius head comminuted fracture in multiple directions and at multiple angles through the intramedullary fixingpile, the prismatic fixing nails and the ring-shaped fixing strap, the radius head comminuted fracture in-pile fixing device and method is particularly applicable to reconstruction of comminuted andhumble cartilage fracture fragments and can reduce operating difficulty, effectively avoid primary radius bone displacement, save medical costs and achieve positive clinical effects; the surface of the intramedullary fixing pile is in a porous design, facilitates bone ingrowth and promotes fracture union.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a pile foundation internal fixation device for comminuted fractures of the radial head and a fixation method thereof. Background technique [0002] The top surface and sides of the radial head are covered by articular cartilage for 360 degrees. The upper part forms the humerioradial joint with the capitellum of the humerus, and the upper side forms the superior radioulnar joint with the superior notch of the ulna. It is an important structure for forearm rotation. Fracture of the radial head accounts for 0.8% of all fractures in the whole body, and about 1 / 3 of the patients are combined with injuries to other parts of the joint. Radial head fracture is an intra-articular fracture. If there is displacement, open reduction and internal fixation are required to restore the anatomical position and early mobilization to restore the functions of elbow flexion and forearm rotati...

AI Technical Summary

Problems solved by technology

After all, the prosthesis for radial head replacement is not a normal anatomical structure, and it is expensive. At the same time, there are complications such as long-term secondary traumatic arthritis, loosening and sinking of the prosthesis; elbow joint instability may occur after radial head resection, and radial direction Proximal displacement affects the stability of the DRUJ and many other problems, and patients with elbow dislocation and collateral ligament injury, radial head resection is a contraindication

The opinions of more scholars advocate the repair, reconstruction and fixation of the radial head, but for Masson type 3 and type 4 radial head fractures, there is currently no ideal fixation plan

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