Lateral malleolus bone plate

Abstract

The invention discloses a lateral malleolus bone plate. The lateral malleolus bone plate is made of titanium-nickel alloy, and comprises a head portion, a body portion and a tail portion. The head portion is in a spoon shape, and is matched with a lateral malleolus in shape, the middle of the head portion is thin, and the two sides of the head portion are thick; the body portion is a straight plate, and the tail portion is triangular and is provided with a circular corner in a chamfering mode. The head portion comprises six threaded holes and a plurality of suture holes, wherein every three threaded holes are formed in the same column, the threaded holes are arranged in a staggered mode to form the front column and the rear column, an acute angle is formed between the axis of the threaded holes and the bone plate, the axis of the threaded holes in the front column faces the inner upper portion, the threads holes in the rear column face the front lower portion, and the suture holes are free of threads, and are distributed between the threaded holes. The body portion is the straight plate, a lug is arranged on the portion, close to the head portion, of the rear side of the straight plate, a long kidney-shaped hole which is longitudinally designed is formed in the lug, and no threads are formed in the kidney-shaped hole. The tail portion is provided with 3-5 threaded holes, and a plurality of suture holes are formed between the threaded holes. In a lateral malleolus operation, screws can be prevented from entering joints, breakage of screws for the distal tibiofibular syndesmosis can be avoided, separation of the distal tibiofibular syndesmosis and the arthritis can be prevented, and use of the lateral malleolus bone plate and the suture in the operation are facilitated.

Description

Technical field [0001] The invention relates to a bone plate in the orthopedics department of a hospital, in particular to a bone plate for the lateral malleolus used in the operation of the lateral malleolus at the syndesmosis of the tibia. Background technique [0002] In the prior art, lateral malleolus fractures can be fixed with Kirschner wires, tension bands, and bone plate screws after reduction. However, the anterior and posterior tibiofibular ligaments are short and it is difficult to directly repair them. When the anterior and posterior tibiofibular ligaments are injured, they usually A half-threaded lag screw is screwed from the fibula to the tibia above the tibiofibular syndesmosis to tighten and fix the tibiofibular syndesmosis, allowing the damaged tibiofibular syndesmosis to heal naturally and restore the stability of the tibiofibular syndesmosis. [0003] The disadvantage is that the existing lateral malleolus plate is not specially designed with the inferior tibiof...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage is that the existing lateral malleolus bone plate is not specially designed with syndesmotic screw holes, clinically, the syndesmotic screws are placed through the common holes on the bone plate. Since the fibula is located on the posterolateral aspect of the tibia, the direction of the screw holes It cannot be changed. It is difficult to insert the syndesmotic screw. After surgery, the syndesmotic screw needs to be removed. If the screw is obtained early, the syndesmosis repair will not be completed, and tibiofibular separation may occur again, which will affect the stability of the ankle joint. In the evening, when the patient is walking with weight, the syndesmosis screw may break, and the lateral malleolus screw is designed to be perpendicular to the bone plate, so the screw can easily enter the joint, and the bone plate is thick, the lateral malleolus is protruding, the skin is thin, and the bone plate is easily placed. skin necrosis

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