Quantifiable distraction lifting device for lumbar spondylolisthesis reduction

Abstract

The invention discloses a quantifiable distraction lifting device for lumbar spondylolisthesis reduction. The quantifiable distraction lifting device comprises a vertical upper supporting rod, the left side of the top end is integrally connected with a horizontal graduated scale and the bottom is rotatably connected with a sleeve A through a universal joint coupling; sawteeth are arranged at the top of the graduated scale in the length direction of the graduated scale, a vertebral body deviation rectifying device is horizontally connected to the graduated scale in a sliding mode, and the vertebral body deviation rectifying device is used for opening and lifting the lesion slipping vertebral body part and resetting the lesion slipping vertebral body part. Known from the structure of the invention, the traditional mode of lifting and resetting the vertebral body by bare hands is changed; an opening and lifting device is adopted, after the vertebral body is strutted and lifted during an operation, the slipping lesion between the vertebral bodies can be effectively improved, the comfort level of a patient is high, meanwhile, the strutting and lifting amplitude of the vertebral body iscontrolled through a quantifiable operation mode, the vertebral body correction amount is not likely to be too small or too large, the accuracy of lesion vertebral body reset is greatly improved, andthe operability and stability of the whole device are higher.

Description

technical field [0001] The invention relates to the field of orthopedic medical devices, in particular to a quantifiable stretching and pulling device for lumbar spondylolisthesis reduction. Background technique [0002] Lumbar spondylolisthesis is one of the common degenerative diseases of the lumbar spine. It often causes symptoms such as low back pain and affects the quality of life of patients. Surgical treatment is required for patients who fail conservative treatment. [0003] Most scholars believe that the anatomical reduction of spondylolisthesis during operation can reconstruct the normal sequence of the spine, improve the imbalance of the sagittal plane of the spine, increase the stability of the intervertebral bodies, facilitate the fusion of surgical segments, and avoid the formation of pseudarthrosis and failure of internal fixation. and other complications, and effectively prevent further aggravation of spondylolisthesis, which has clear biomechanical advantage...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a quantifiable stretching and pulling device for the reduction of spondylolisthesis, which overcomes the defects of the prior art, and solves the problem that patients with spondylolisthesis often have diseased intervertebral space and lose height, which may easily cause vertebral body lifting during operation. If it is blocked, the lesions between the vertebral bodies will be further aggravated, which will bring great pain to the patient. At the same time, it will solve the problem that the current manual pulling and stretching of the vertebral body is not easy to control, which will easily lead to too small or excessive correction of the vertebral body, low operation accuracy, The problem of low stability

Images