Thoracic Spine, Lateral View

Description

Arcing in a gentle S-curve, the vertebral column is presented in lateral profile with the thoracic vertebrae (T1 to T12) highlighted in blue between the cervical spine superiorly and the lumbar spine inferiorly. Cervical vertebrae sit anterior to the nuchal region in anatomical position and transition at the cervicothoracic junction to the thoracic kyphosis, after which the lumbar vertebrae continue into the lumbosacral junction, sacrum, and coccyx. Spinous processes project posteriorly along the curve, while the vertebral bodies align anteriorly to define the overall sagittal balance. Kyphosis is the landmark. Sagittal alignment of the thoracic spine matters because small changes in thoracic kyphosis shift the head and trunk position relative to the pelvis, altering load distribution across the intervertebral discs and facet joints. This lateral view supports teaching and clinical discussion of hyperkyphosis, including Scheuermann disease and osteoporotic vertebral compression fractures, where anterior vertebral body wedging increases the thoracic curve and can drive compensatory lumbar hyperlordosis. It also suits preoperative planning concepts for deformity correction, where restoring thoracic curvature and global sagittal balance guides selection of fusion levels. Use this asset in gross anatomy and musculoskeletal courses when introducing regional vertebral counts, normal spinal curvatures, and the transition zones at C7 to T1 and T12 to L1. It also fits orthopedic, neurosurgical, and rehabilitation publications discussing posture assessment, kyphoplasty indications, or radiographic interpretation of thoracic alignment on lateral spine films. Anatomical accuracy verified by SciePro's Medical Advisory Board.