4 results about "Spondylolisthesis" patented technology

An assembly for correcting spinal deformities may include at least lateral rods extending across adjacent vertebrae to be retained at either end by pedicle screws. A cross-coupler may be coupled to each lateral rod, and a longitudinal rod may run along the spine and be coupled to the lateral rods by the cross-couplers. The assembly may be used to correct spinal deformities by manipulating the pedicle screws or cross-couplers to rotate about the lateral rods or the longitudinal rod.

MEDICAL APPARATUS FOR SPONDYLOLISTHESIS REDUCTION

Assemblies of one or more implant structures make possible the achievement of diverse interventions involving the fusion and / or stabilization of the SI-joint and / or lumbar and sacral vertebra in a non-invasive manner, with minimal incision, and without the necessitating the removing the intervertebral disc. The representative lumbar spine interventions, which can be performed on adults or children, include, but are not limited to, SI-joint fusion or fixation; lumbar interbody fusion; translaminar lumbar fusion; lumbar facet fusion; trans-iliac lumbar fusion; and the stabilization of a spondylolisthesis.

The invention discloses a vertebra staggered seam X-ray image intelligent identification method based on similar triangular structure labeling, and relates to the technical field of medical image processing. Comprising the following steps: S1, acquiring a vertebra X-ray image and imaging geometric parameters, and executing data preprocessing; s2, positioning a centrum region, obtaining key points of a similar triangular structure, and completing geometric consistency verification; s3, two-dimensional projection geometric representation is constructed, and three-dimensional space rotation representation of left and right lateral flexion is recovered in combination with imaging geometric parameters; meanwhile, the corrected three-dimensional position parameters of the segments are obtained; s4, non-linear energy representation is constructed, the vertebra dislocation degree is quantified, and dislocation state grading judgment is carried out; and S5, superposing and visually displaying the triangle-like structure, the three-dimensional space rotation representation and the vertebra staggered joint degree, and forming a structured report. The problem that deviation and misjudgment are prone to occurring in vertebra staggered seam recognition due to the fact that the three-dimensional rotation relation of the segments cannot be accurately recovered due to functional position X-ray projection distortion is solved.