Vertebral body lifting and fixing device for anterior cervical surgery

Abstract

The invention discloses a vertebral body lifting and fixing device for anterior cervical surgery, which comprises two fixing arms, a left supporting rod, a right supporting rod, a left supporting rod rotating shaft and a right supporting rod rotating shaft, the left supporting rod and the right supporting rod are both in a groove-shaped plate shape, the left supporting rod is matched with an inner groove of the right supporting rod, the fixing arms comprise a left fixing arm and the right fixing arm. the left fixing arm comprises a left fixing arm body and a left fixing plate, the right fixing arm comprises a right fixing arm body and a right fixing plate, the fixing arms further comprise two fixing arm positioning bolts, an adjusting bolt for adjusting the length of the supporting rod, two clamping devices and two lifting rotary knobs. The vertebral body lifting and fixing device is simple in structure, firm, durable and high in operability, and the risk of recompression and the reoperation rate are reduced while individualized operation formulation and precise treatment effect are achieved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a vertebral body lifting and fixing device for anterior cervical surgery. Background technique [0002] Ossification of posterior longitudinal ligament (OPLL) is a cervical degenerative disease in which cervical spinal canal stenosis is caused by heterotopic ossification of ligament tissue, resulting in spinal cord and nerve root compression. Surgery is often required to relieve oppression. The surgical methods for the treatment of OPLL include direct anterior cervical decompression and posterior cervical indirect decompression. Among them, direct anterior cervical decompression mainly includes anterior discectomy and fusion (ACDF) and anterior cervical corpectomy and fusion (ACCF); Posterior cervical indirect decompression includes laminectomy and laminoplasty. Posterior cervical indirect decompression has become a commonly used surgical method for the treatment of OPLL due to ...

AI Technical Summary

Problems solved by technology

[0004] 1. The resected anterior vertebral body is less, and the ossification complex moves forward less. The effect of decompression on larger ossifications is not obvious, and there is a risk of re-compression and reoperation for progressively growing ossifications;

[0005] 2. After the intervertebral fusion device is placed, the operation of lifting the vertebral ossification may have the risk of implant displacement and surgical failure;

[0006] 3. This method depends on the preoperative CT scan measurement to determine the thickness of the removed bone, and cannot realize the quantitative adjustment of the lifting operation during the operation;

[0007] 4. In the process of slotting on both sides of the vertebral body, there is no support and protection device, and the use of rongeurs, high-speed drills, etc. may cause damage to the rear tissue. The degree of operation depends on the operator's personal experience, which has potential risks;

[0008] 5. The vertebral ossification complex has been completely disconnected from the surrounding area through surgical operation. During the process of tightening the screws, there is no tissue or instrument that can support the ossification, so there is a risk of aggravating the posterior spinal cord compression

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