Thoracolumbar spine side adjustable fixing plate system

Abstract

The invention belongs to the technical field of medical instruments, and particularly discloses a thoracolumbar spine side adjustable fixing plate system. The system comprises a locking plate, a sliding plate, a vertebral screw and a locking screw, and the locking plate and the sliding plate are both arc plates; a fixing hole is formed at the inner end of the locking plate, and a screw hole for implanting the vertebral screw is formed at the outer end of the locking plate; a strip-shaped hole is formed at the inner end of the sliding plate, and a screw hole is formed at the outer end; and thelocking plate and the sliding plate are connected through the locking screw, and the vertebral screw is implanted in the position, close to an end plate, of the vertebral body of the patient through the screw hole. Due to the fact that the length is adjustable, it can be guaranteed that the vertebral screw is selectively implanted into the bone close to the end plate, the end plate is prevented from being damaged, the screw holding force is high, and the screw is suitable for normal or osteoporosis patients to reconstruct thoracolumbar stability; and the transverse radian of the locking plateand the transverse radian of the sliding plate correspond to the radian of the side wall of the vertebral body, the locking plate and the sliding plate can be better attached to the curved surface onthe side of the vertebral body, meanwhile, an intervertebral implant or a bone grafting material is wrapped, and the effect of preventing displacement and disengagement is achieved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to a lateral adjustable fixing plate system for thoracolumbar vertebrae. Background technique [0002] The oblique lateral thoracolumbar approach is a commonly used surgical approach in spinal surgery, and it provides an effective surgical treatment approach for the treatment of infections, tumors, and nonunion of fractures represented by thoracolumbar tuberculosis. As a technical improvement of this approach, in recent years, the minimally invasive oblique lateral approach lumbar interbody fusion (OLIF) has brought new innovations to the treatment of lumbar diseases due to its advantages of less trauma, less bleeding, larger area of ​​intervertebral bone grafting, and fewer complications. s Choice. [0003] This approach requires rebuilding the mechanical stability of the spine after resection of bone, lesions, and intervertebral discs. Common fixation methods are anterior s...

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Problems solved by technology

[0004] In order to overcome the above-mentioned defects in the prior art, the purpose of the present invention is to provide an adjustable fixed plate system for the side of the thoracolumbar spine, which can be inserted from the side of the thoracolumbar spine after shortening and then adjusted to a suitable length, which solves the problem of posterior screw placement. The cumbersome and surgical complications, as well as the difficulty in achieving intervertebral mechanical reconstruction through small anterior incisions

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