New method to apply the lumbar lordosis of standing radiographs to supine CT-based virtual 3D lumbar spine models.

ABSTRACT: Standing radiographs play an important role in the characterization of spinal sagittal alignment, as they depict the spine under physiologic loading conditions. However, there is no commonly available method to apply the lumbar lordosis of standing radiographs to supine CT-based virtual 3D models of the lumbar spine. We aimed to develop a method for the sagittal rigid-body registration of vertebrae to standing radiographs, using the exact geometry reconstructed from CT-data. In a cohort of 50 patients with monosegmental spinal degeneration, segmentation and registration of the lumbar vertebrae and sacrum were performed by two independent investigators. Intersegmental angles and lumbar lordosis were measured both in CT scans and radiographs. Vertebrae were registered using the X-ray module

SUBMITTER: Hajnal B 

PROVIDER: S-EPMC9701766 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature