RU53558U1 - DEVICE FOR TREATMENT OF INTERNAL ARTICULAR FRACTURES OF TUBULAR BONES - Google Patents

Abstract

The device relates to medicine, and can be used in traumatology and orthopedics for the treatment of intraarticular fractures of tubular bones. The device consists of two screw rods, a beam, a threaded rod, four flags, knitting needles with a thrust pad. We have proposed a device with which it is possible to perform osteosynthesis of fractures of the ulnar process by external transosseous osteosynthesis, and also using this device it is possible to perform osteosynthesis of fractures of the lateral ankle by external transosseous osteosynthesis.

Description

The utility model relates to medicine, and can be used in traumatology and orthopedics for the treatment of fractures of the ulnar process.

A device is known for treating fractures of the ulnar process using transosseous osteosynthesis [Lee A.D., Transosseous osteosynthesis in traumatology, Tomsk, Tomsk University Press, 1992, pp. 96-97.], Wherein the external fixation device consists of two ring and one semicircular supports, six spokes and threaded rods. Through the diaphysis of the ulna, two pairs of intersecting needles are held at a distance of 10 cm from each other. The ends of the spokes are fixed with tension on two ring supports. The latter are interconnected using threaded rods. This is the basis for compression osteosynthesis. Two spokes with thrust pads are held through the proximal fragment in the frontal plane. The ends of the spokes are fixed with tension on the half-ring support, which is reduced to the correct matching of bone fragments, and the half-ring is connected to the base support using threaded rods.

The disadvantage of this device for the treatment of fractures of the ulnar process is:

- insufficient rigidity of fixation and stability of osteosynthesis using knitting needles.

- trauma to soft tissues and bones by knitting during reposition.

- bulkiness of the structure.

We have proposed a device with which it is possible to perform osteosynthesis of fractures of the ulnar process by external transosseous osteosynthesis consisting of a beam, two screw rods, a threaded rod, four flags, a spoke with a thrust pad.

The figure 1 shows the General layout of the proposed device for the treatment of fractures of the ulnar process by external transosseous osteosynthesis, where

1 - Beam

2, 3 - Screw rods.

4, 5, 6, 7 - flags.

8 - threaded rod with a slot for a spoke.

9 - a spoke with a persistent platform.

Using the proposed device, osteosynthesis is as follows:

In the upper third of the forearm, screw rods 2, 3 are installed in an anatomically safe area in the ulnar bone perpendicular to its axis and parallel to each other at a distance of 10 cm from each other. To the screw rods using the flags 4, 5, a beam is attached. This is the basis for compression osteosynthesis. A threaded rod with a slot for a spoke 8 is attached to the beam by means of flags 6, 7 at an angle of 10 degrees with respect to the beam. Through a fragment of the ulnar process, a spoke is held with a thrust pad 9. After reposition of the fragment, the spoke is stretched and fixed to the threaded rod. Thus, the proposed useful model for closed osteosynthesis of the ulnar process allows: more easily reposition, creates less trauma to the bone and soft tissues during reposition, has greater rigidity, and has smaller dimensions, which makes it comfortable to wear for patients.

In addition, using the proposed device, it is possible to perform osteosynthesis of fractures of the lateral ankle. Osteosynthesis is carried out as follows: screw rods 2, 3 are installed in the anatomically safe area of the tibia in the lower third perpendicular to its axis and parallel to each other at a distance of 10 cm from each other. To the screw rods with the help of flags 4, 5 is attached

beam 1. This is the basis for compression osteosynthesis. With the help of flags 6, 7, a threaded rod is fastened to the beam with a cut for the knitting needle at an angle of 10 degrees with respect to beam 1. Through a fragment of the lateral ankle, a spoke with a thrust pad is attached, which is attached to the threaded rod with a cut for the knitting needle 8. This device allows to reposition a fragment of the lateral ankle with less trauma to tissues and bones during the reposition process, has greater rigidity, smaller size, which creates convenience for patients.

Claims (1)

A device for the treatment of intraarticular fractures of tubular bones by external transosseous osteosynthesis, consisting of a compression base and a fixing needle with a persistent areal, characterized in that the compression base is made in the form of a beam and two screw rods, and a fixing spoke with a persistent platform is connected to the compression base with the ability to move through a threaded rod with a slot for a spoke, rigidly fastened to the base.