Posterior lumbar interbody fusion system

Abstract

The invention discloses a posterior lumbar interbody fusion system which comprises a fusion cage body and screws, wherein the fusion cage body comprises a fusion cage front end and a fusion cage tailend; the fusion cage front end is of a bullet structure; a bone grafting cavity of which the upper part penetrates through the lower part is formed in the fusion cage body between the fusion cage front end and the fusion cage tail end; a plurality of antiskid convex bodies are uniformly arranged on each of the upper surface and the lower surface of the fusion cage body; and the tips of at least two screws respectively extend out of the upper surface and the lower surface of the fusion cage tail end obliquely. The posterior lumbar interbody fusion system for an operation can complete the fixation of an interbody fusion cage and an adjacent vertebral body well without the need of a pedicle screw and meets the treatment requirements of a novel operation way and achieves the treatment purposesof the novel operation way.

Description

technical field [0001] The invention belongs to the technical field of lumbar posterior auxiliary devices, in particular to a lumbar posterior intervertebral fusion system. Background technique [0002] Posterior lumbar decompression and interbody fusion is the most common surgical method for the treatment of lumbar disc herniation, lumbar spinal stenosis and other common lumbar diseases. Lumbar interbody fusion via Transforaminal Lumbar Interbody Fusion, TLIF, and Minimally Invasive Surgery——Transforaminal Lumbar Interbody Fusion, MIS-TLIF under minimally invasive access. In recent decades of clinical practice, the three surgical methods have achieved good clinical efficacy; however, all three surgical methods require pedicle screw fixation after intervertebral bone grafting and implantation of intervertebral fusion cages. This not only aggravates the trauma of the operation, but also may cause related complications such as screw loosening and failure, and the most importa...

AI Technical Summary

Problems solved by technology

In recent decades of clinical practice, the three surgical methods have achieved good clinical efficacy; however, all three surgical methods require pedicle screw fixation after intervertebral bone grafting and implantation of intervertebral fusion cages. This not only aggravates the trauma of the operation, but also may cause related complications such as screw loosening and failure, and the most important disadvantage is that patients often need to wait for a second operation to remove the pedicle screw after the intervertebral fusion is good.

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