This diagnostic image is a weight-bearing anteroposterior (AP) full-spine radiograph, commonly used for scoliosis evaluation. The X-ray demonstrates a long-segment scoliotic curvature of the spine with a dextroconvex (right-sided) orientation. Anatomical landmarks indicate the curve originates in the upper thoracic spine (T2) and extends through the thoracolumbar junction to the upper lumbar region (L2). Digital annotations show a Cobb angle measurement of 28.8 degrees for this primary curve. Additional quantitative markers include a 90.0-degree angle measurement at the pelvic/lower lumbar interface, evaluating coronal balance or pelvic tilt. The image is critical for diagnosing spinal deformities, assessing vertebral alignment, and monitoring progression in pediatric or adult orthopedic patients. It highlights the absence of significant pedicle rotation at the apex, which is a key clinical indicator in distinguishing between structural and compensatory or non-structural scoliotic curves secondary to conditions like spondylolisthesis.

This diagnostic image is an anteroposterior (AP) X-ray of the thoracolumbar spine showing significant scoliotic deformity. The visual content demonstrates an automated Cobb angle measurement performed by clinical software. Green rectangular boxes are overlaid on individual vertebral bodies from the upper thoracic to the lower lumbar region, mapping their anatomical margins. A red polyline follows the central spinal midline, highlighting lateral curvature. Two sets of intersecting red tangent lines are visible: one in the upper thoracic region measuring an angle of 36.61 degrees, and another in the lumbar region measuring 23.26 degrees. These measurements identify a double-curve pattern consistent with combined thoracic and lumbar scoliosis. The vertebral bodies show visible rotation and tilting, particularly at the apex of the curves. The software tools illustrated are used for objective spinal deformity assessment and classification in orthopedic and radiological settings.

Anteroposterior (AP) x-ray radiography of the spine, primarily focusing on the thoracic and lumbar regions. The diagnostic image reveals a significant S-shaped spinal curvature consistent with double-curve adolescent idiopathic scoliosis. The primary curve is located in the mid-to-lower thoracic region with a rightward lateral convexity (dextroscoliosis). A secondary compensatory curve is observed in the lumbar region with a leftward lateral convexity (levoscoliosis). There is visible rotation of the vertebral bodies toward the convexity of the curves. Secondary skeletal effects include narrowing of the intercostal spaces on the concave sides of the curves and an asymmetric appearance of the rib cage. The lower aspect of the radiograph captures the iliac crests of the pelvis. Faint lines drawn on the film suggest clinical measurement of the Cobb angle for orthopedic assessment. This visual serves as a primary tool for evaluating spinal alignment, determining the degree of deformity, and planning non-operative or surgical treatment protocols in orthopedics and physical therapy.

This diagnostic image consists of three panels (a, b, and c) showing anteroposterior (AP) spinal X-ray radiographs used to demonstrate Cobb angle measurement techniques for scoliosis. The images depict the thoracolumbar spine with a visible lateral curvature. Panel 'a' shows a normally oriented film with superimposed horizontal green reference lines and red lines marking the vertebral endplates to calculate the tilt angle. Panel 'b' illustrates a tilted film simulation, demonstrating that the endplate tilt angle relative to the film's horizontal plane remains consistent even when the image is misaligned on a viewing surface. Panel 'c' highlights reference markers used to minimize measurement error, including a red dotted line outlining the rectangular boundary of the imaging data and a red arrow pointing to a vertical ruler line. These markers establish a true horizontal plane for accurate angular assessment. The visual material is designed for orthopedic and radiological education, specifically focusing on the geometry of spinal deformity measurement and the mitigation of extrinsic errors in clinical practice.

This medical schematic illustrates the sagittal spinal curvatures and the mathematical methodology for calculating vertebral angles using a device like the Spinal Mouse. The image features a lateral view of a human spinal column showing the physiological curves. To the left, two detailed diagrams demonstrate the angular calculation for different spinal regions. The top diagram shows the thoracic vertebrae, where a convex posterior curve is defined as kyphosis; this is represented by positive angular values (exemplified by a +5° angle formed by lines extending from the vertebral bodies). The bottom diagram shows the lumbar vertebrae, where a concave posterior curve is defined as lordosis; this is represented by negative angular values (exemplified by a -5° angle). This visual aid is intended for orthopedic and physiotherapeutic education to explain how digital spinal analysis tools quantify postural alignment and sagittal balance. Key anatomical landmarks included are the thoracic and lumbar vertebral bodies and the sacrum.

This diagnostic sagittal X-ray (radiograph) of the thoracolumbar spine illustrates the radiographic measurement techniques for sagittal spinal alignment parameters. The image demonstrates two primary spinal curves: thoracic kyphosis and lumbar lordosis. Thoracic kyphosis (TK) is visually defined using the Cobb method, where lines are drawn parallel to the superior endplate of the T1 vertebra and the inferior endplate of the T12 vertebra; the angle formed by the intersection of perpendicular lines from these boundaries quantifies the posterior convexity of the thoracic region. Inferiorly, lumbar lordosis (LL) is measured as the angle between a line drawn along the inferior endplate of T12 and a line along the superior endplate of S1, representing the anterior convexity of the lumbar spine. This clinical imaging is essential for orthopedic and neurosurgical evaluation of sagittal balance, spinal deformities, and preoperative planning. The labeling identifies the key anatomical landmarks (T1, T12, S1) and the resulting angular measurements, providing a clear educational overview of spinopelvic sagittal alignment assessment.

This anatomical diagram illustrates the sagittal classification of spinal curvature in a standing position, focusing on the thoracic and lumbar regions. A lateral view of the human vertebral column highlights two primary curvatures: Thoracic Kyphosis and Lumbar Lordosis. The diagram provides quantitative diagnostic criteria for each region based on established medical literature. For Thoracic Kyphosis (Mejia et al., 1996), values of 20&#176;-45&#176; are defined as neutral, <20&#176; as hypokyphosis, and >45&#176; as hyperkyphosis. For Lumbar Lordosis (T&#252;z&#252;n et al., 1999), the range of 20&#176;-40&#176; is classified as neutral, <20&#176; as hypolordosis, and >40&#176; as hyperlordosis. This infographic serves as a clinical reference for orthopedic and physiotherapeutic assessment of sagittal spinal alignment and postural deviations.

This sagittal T2-weighted MRI image of the cervical spine reveals a severe kyphotic deformity centered at the C2-C4 levels. The normal cervical lordosis is completely replaced by an acute, angular kyphosis of approximately 120 degrees. The spinal alignment is markedly disrupted, consistent with spondyloptosis, where the vertebral bodies have translated significantly, creating a sharp bony apex. The spinal cord is visually stretched and tightly compressed over this bony prominence at the apex of the deformity. There is an evident loss of the normal cerebrospinal fluid (CSF) signal surrounding the cord at the site of maximum narrowing, indicating critical spinal stenosis. The surrounding soft tissues and vertebral body morphologies appear altered by this chronic malalignment. This diagnostic image is representative of advanced neurological compromise due to spinal instability and serves as a classic illustration of severe kyphotic spinal cord compression.