A flexible nail and system for internal fixation of proximal humeral fracture

Abstract

Embodiments of the invention relate to a flexible nail for internal fixation of a proximal humerus fracture. The flexible nail comprises a flexible nail body, wherein a flexible nail head is of a tapered structure disposed at one end of the flexible nail body; a flexible nail tail is of an arc-shaped structure and disposed at the other end of the flexible nail body and used for bending the flexible nail during the nailing process; an anti-sliding portion is disposed on the flexible nail body, is close to the flexible nail tail and is used for applying pressure to the humerus to prevent nail returning. Therefore, the flexible nail for internal fixation of a proximal humerus fracture solves the problems that a screw drops during a surgery and the humeral head is punched and the joint is broken. A good holding force can be obtained, no risk of humeral head punching occurs, the bone destruction is small, and the surgical success rate is improved; the flexible nail tail is set to an arc shape, so that the flexible nail can be bent during the nailing process, the adherence fixation is achieved, and an anti-pull-out force of the flexible nail is also increased.

Description

technical field [0001] The invention relates to a screw used in orthopedic surgery, in particular to a flexible nail and a system for internal fixation of proximal humerus fractures. Background technique [0002] Proximal humerus fracture is a common clinical fracture, and its incidence accounts for about 4-5% of all fractures in the whole body. Locking plates combined with screws have many advantages in the treatment of proximal humeral fractures, making them the most commonly used treatment. However, the bones inside the humeral head of the elderly are relatively loose, and the ability to grasp the screws is significantly reduced, which may easily cause the inserted screws to fall off, resulting in the failure of the operation. Clinically, longer screws are sometimes used to drive the humeral head to the inner wall of the opposite side to improve the holding force, but it is very easy to penetrate the humeral head and damage the articular surface, resulting in surgical fa...

AI Technical Summary

Problems solved by technology

However, the bones inside the humeral head of the elderly are relatively loose, and the ability to grasp the screws is significantly reduced, which may easily cause the inserted screws to fall off, resulting in the failure of the operation

Clinically, longer screws are sometimes used to drive the humeral head to the edge of the inner wall on the opposite side to improve the holding force, but it is very easy to penetrate the humeral head and damage the articular surface, resulting in failure of the operation, so inexperienced doctors rarely ...

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