T12 vertebra: Definition, Uses, and Clinical Overview
T12 vertebra is the twelfth thoracic vertebra in the middle portion of the spine. It sits at the thoracolumbar junction, where the thoracic spine transitions to the lumbar spine. It helps connect the rib cage region to the lower back and supports load transfer during movement. Clinicians commonly reference it in imaging reports, fracture care, and surgical level planning.