RU2349281C1 - Device for treatment of acromial clavicle extremity dislocation - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: device includes plate and two bicortical screws for clavicle. Plate takes form of cylinder part with bracket-shaped retractor and orifices for the screws. One of the bracket-shaped retractors features a flat element at its end for acromial extremity of shoulder blade, oriented opposite to the other bracket-shaped retractor.

EFFECT: reduced operation time and operational trauma degree, prevention of device migration due to simple construction.

4 dwg

Description

The invention relates to medicine, namely to traumatology, and is intended for surgical treatment of patients with dislocation of the acromial end of the clavicle.

Known retainer for clavicular-acromial articulation containing a rod, which is made in the form of an arcuate plate having a fork curved in the shape of a hook, for example double-toothed, and a head with a hole for a screw / analog /. See description of the USSR to A.S. No. 410778, IPC A61B 17/18, "Clamp for clavicular-acromial articulation" ed. Roitburt E.I., bull. No. 2, dated January 15, 1974, priority dated December 13, 1971

Disadvantages: when using this fixative, a larger skin incision is required than during the operation with the proposed fixative, soft tissues surrounding the clavicular-acromial joint are injured, physiological mobility of the clavicular-acromial joint is excluded, the duration of the operation is much longer.

The closest technical solution from the known is the description to A. with. USSR No. 1380739, IPC А61В 17/58 with priority of 04/07/86, "Clamp for clavicular-acromial joint", ed. Gongalsky V.I., Kvasha V.P. / prototype /, bull. No. 10 dated 10.03.88.

Clamp for the clavicle-acromial joint, containing a plate with a double-toothed roll at one end and a mounting hole with a screw installed on it at the other end, where the plate in the middle part is made straight, the fork is at an acute angle to it, the other end of the plate has a bend, a hole made threaded, and the screw is made stepped with a working end of a smaller diameter than the mounting.

Disadvantages: as a result of using this design, an additional traumatization of the acromial process of the scapula occurs, the time for surgery increases, the skin is cut the largest, soft tissues surrounding the clavicular-acromal joint are injured, and the physiological mobility of the clavicular-acromial joint is excluded.

Technical result: reducing the time for surgery, reducing the amount of operating injury, preventing device migration due to the simplicity of the design, which is achieved by the fact that in the known device containing a plate with a hole, where the plate is supposed to be made as part of a cylinder with staple-shaped bends at its ends and, at the end of one of the staple-shaped bends, make a flat element parallel to the plate and directed in the opposite direction from the other staple-shaped bend, and onto the layer There is no additional hole for rigidly fixing the plate to the clavicle by means of an additional bicortical screw.

Reducing the time for surgery and reducing the amount of operating injury occurs due to the plate being made as a part of the cylinder with staple-shaped bends at the ends, which makes it possible to fit it better to the clavicle, and the additional hole for the bicortical screw provides rigid fixation of the plate on the clavicle and prevents its migration .

The implementation of a flat element parallel to the plate and directed in the opposite direction from the other staple-shaped branch allows you to keep the clavicle in physiological position due to its / flat element / location under the acromial process of the scapula, i.e. physiological mobility remains in the clavicular-acromial joint, and so on. dislocation of the acromial end of the clavicle does not occur, penetration of the structure into the cavity of the clavicular-acromial joint is excluded, i.e. the latter is not injured.

Figure 1 shows a front view of the device;

Figure 2 shows a view of the reconciliation, figure 1;

Figure 3 shows a view on page "A", figure 2;

Figure 4 shows a side view, figure 1, view on page B.

A device for treating dislocations of the acromial end of the clavicle contains a plate 1 with a hole 2, where the plate 1 is made as part of a cylinder with staple bends 3, and at the end of one of the staple bends 3 there is a flat element 4 parallel to the plate 1 and directed in the opposite direction from the other bracket-shaped outlet 3, and on the plate 1, an additional hole 5 is intended for the bicortical screw 6. This is done for the rigidity of mounting the plate 1 to the clavicle 7. The hole 2 is also intended for fastening bico vertical screw 6 to the clavicle 7. Due to the flat element 4, brought under the acromial process of the scapula 8, the clavicle 8 is held in a physiological position and does not dislocate.

Operation

The patient lies on his back. A roller is placed under the blade. In the projection of the clavicular-acromial joint, a linear incision is made up to 4-6 cm. The place of rupture of the clavicular-acromial joint is laid out in layers. We determine the degree of displacement of the clavicle 7 and the state of the articular disc.

With irreversible damage to the articular disc, the latter is removed. In stale cases, interponing scar tissue is removed. Clavicle 7 is openly adjusted, plate 1 is adapted and modeled. The flat element 4 of plate 1 is brought under the acromial process of the scapula 8, the staple-shaped branches 3 are brought under the clavicle 7, and the associated plate 1 is fixed to the clavicle 7 using two bicortical screws 6 - AO 3.5 mm through hole 2 and additional hole 5. During the operation, hemostasis. The wound is sutured in layers. Aseptic dressing. The duration of the operation is 15-20 minutes. In the postoperative period, immobilization with a kerchief bandage 16-18 days. T.O. physiological mobility of the joint remains, which excludes the possibility of joint ankylosis, damage to tissues of the articular surfaces of the clavicle 7 and the acromial process of the scapula 8 is also excluded. The operation time is reduced by a factor of 2–3, and the volume of the surgical wound is reduced by a factor of two compared with the prototype. Migration of the device is prevented by means of staple bends with a flat element 4.

Claims (1)

A device for treating dislocations of the acromial end of the clavicle, containing a plate, characterized in that it is provided with two bicortical screws for the clavicle, the plate is made in the form of a cylinder part with staple branches and holes for the said screws, at the end of one of the staple branches there is a flat element under the acromial process blades directed in the opposite direction from another staple-shaped branch.

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