System for fixing anterior cervical and capable of preventing overcompensation movement

Abstract

The invention relates to an anterior cervical fixing system capable of preventing overcompensation motion, which belongs to the technical field of surgical instrument. The anterior cervical fixing system adopts the technical proposal that the anterior cervical fixing system comprises a fused vertebra fixing plate used for fixing two or a plurality of vertebra bodies, an adjacent vertebra fixing plate used for fixing adjacent vertebra bodies, and a limit ligament which connects the fused vertebra fixing plate and the adjacent vertebra fixing plate, so as to limit the spacing distance between the fused vertebra fixing plate and the adjacent vertebra fixing plate. The anterior cervical fixing system can support the vertebral body of a surgical section, can realize fusion of decompression sections and simultaneously change the stress concentration phenomenon of adjacent sections of the decompression sections and prevent or relieve degeneration of intervertebral discs of the adjacent sections, has a simple structure, and is convenient to operate when being used for surgeries.

Description

technical field [0001] The invention relates to an orthopedic medical instrument, in particular to a fixing device for anterior cervical surgery, belonging to the technical field of surgical instruments. Background technique [0002] Anterior cervical decompression and bone graft fusion ACDF (Anterior Cervical Discectomy and Fusion) is currently the standard surgical method for the clinical treatment of cervical spondylotic myelopathy and cervical spondylotic radiculopathy. After more than 50 years of clinical application observation, although this surgical method has obvious effect of nerve decompression, the fusion rate of intervertebral body is high. However, the ACDF procedure itself has its own inherent defects: after decompression and fusion of the lesion segment, although the purpose of relieving nerve compression is achieved and the stability and height of the segment is maintained, the motor function between the segments is lost , this part of the lost motion funct...

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Problems solved by technology

However, the ACDF procedure itself has its own inherent defects: after decompression and fusion of the lesion segment, although the purpose of relieving nerve compression is achieved and the stability and height of the segment is maintained, the motor function between the segments is lost , this part of the lost motion function must be compensated by the excessive motion of the adjacent segment to exert the extension and flexion function of the cervical spine, which will inevitably cause the stress concentration of the adjacent segment and further aggravate the degeneration of the adjacent segment intervertebral disc, Caused Adjacent Segment Disease (ASD) after anterior cervical fusion

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