RU81064U1 - DEVICE FOR TREATMENT OF condyles - Google Patents

Abstract

A device for the treatment of condyle fractures, provides their closed reposition with multi-plane displacements. This technical result is achieved in that the supports with the bone retainers fixed in the form of knitting needles and rods are connected by threaded rods, ears provided at one end with a threaded guide installed in them, on which the support with the condyles fixing rods is mounted, with the possibility of movement with the possibility of axial displacement installed parallel to the plane of the support, at an angle to each other.

Description

A useful model - a device for the treatment of condyle fractures - relates to the field of traumatology, in particular to the technical means of extra focal osteosynthesis used to treat fractures of the limb bones.

A device is known for osteosynthesis of tibial condyles containing a plate with holes and a fixing unit made in the form of rods located in the same plane and perpendicular to the end of the plate (RF Patent No. 2031635, publ.: 27.03.95).

However, this device does not provide the possibility of closed reposition of bone fragments.

A device is known for the treatment of condyle fractures of the thigh and lower leg, containing supports connected by threaded rods with fixing rods fixed to them perpendicular to each other (Certificate of the Russian Federation at PM No. 7838, publ.: 16.10.98).

However, this device does not allow the displacement of the damaged condyle in the segmental plane and, thereby, achieve its accurate reposition.

The objective of the utility model is to provide a closed reposition of condyle fractures with their multi-plane displacements.

This problem is solved in that in the device for the treatment of condyle fractures, containing supports connected by threaded rods with fixed bone retainers in the form of spokes and rods, threaded rods are provided with ears at one end and a threaded guide is connected, on which the support is movably fixed with condyle-fixing rods, the latter with the possibility of axial displacement installed parallel to the plane of the support, at an angle to each other.

The utility model is illustrated by a description and a diagram showing a general view of a device for treating condyle fractures.

The device for the treatment of condyle fractures contains supports 1 and 2 with fixed bone retainers in the form of spokes 3 and fixing rods 4. Moreover, the spokes 3 - both on the surface and outside it, by means of brackets 5 - are attached to the spokes 6 the support 1, and the fixing rods 4, by means of brackets 7 with the possibility of axial displacement are fixed on the support 2

parallel to its plane, at an angle to each other. The threaded rods 8 are fixed at one end to the support 1, and the other, equipped with ears 9, are connected to a threaded guide 10, on which the support 2 is mounted by means of brackets 11. The parts of the device are interconnected by fixing bolts 12 and nuts 13.

The device is used as follows

Under conditions of anesthesia, through a third of the bone adjacent to the damaged condyle, transosseously, at different levels, spokes 3 are carried out, which, in tension, are fastened with the help of spokes 6 to the support 1 and to the brackets 5 mounted on it. Similarly, to the damaged condyle of the bone in the segmental the plane at an angle to each other enter the fixing rods 4, which through brackets 7 with the possibility of axial displacement are mounted on the support 2.

To eliminate the condyle displacement in the segmental plane (anterior and posterior), the support 2 is displaced with the fixing rods 4 fixed on it along the threaded guide 10. To do this, in one direction or another, rotate the nuts 13 fixing the position of the brackets 11 on the threaded guide 10, by which it is connected to the specified guide.

The condyle is displaced in the same plane, but “across the width” (inside and out) by simultaneous axial mixing of the fixing rods 4, which is also achieved by rotating their fixing their position relative to the brackets 7 of the nuts 13.

To eliminate the angular displacement, the corresponding fixing rod 4 is axially displaced by rotating the nuts 13 fixing its position in one of the brackets 7. Moreover, the fixing of the other bracket 7 with the second fixing rod 4 fixed therein is weakened.

A longitudinal displacement of the condyle relative to the bone length is performed by simultaneously rotating the nuts 13, fixing the position of the threaded rods 10 on the support 1.

These manipulations can be performed both sequentially and simultaneously.

Upon completion of the reposition, the position of the parts and components of the device is stabilized and the fixation conditions are maintained until the fracture is consolidated. Dismantling the device is carried out in the reverse order.

The use of the device in the clinic of the RRC "WTO" named after Acad. G.A. Ilizarova showed that its use provides the ability to accurately reposition

damaged condyle, including its displacements in the segmental plane, which improves the functional results of the treatment of this type of bone damage.

Claims (1)

A device for treating condyle fractures, comprising supports connected by threaded rods with bone retainers in the form of spokes and fixing rods, characterized in that the threaded rods are provided with ears at one end and are connected by a threaded guide, on which the support is fixed with condyle by rods, the latter with the possibility of axial displacement installed parallel to the plane of the support, at an angle to each other.