Thoracic anterior controllable antedisplacement fusion for thoracic ossification of the posterior longitudinal ligament: A case report

Figure 1 Preoperative diabetic retinopathy and computed tomography. A and B: Orthoposition and lateral position of thoracic vertebra diabetic retinopathy before operation; C: Thoracic vertebra computed tomography sagittal position before operation. It can be seen that the posterior longitudinal ligament is severely ossified and protrudes backward into the spinal canal; D: Intervertebral space of T2/3; E: Intervertebral space of T3/4; F: Intervertebral space of T4/5; G: Intervertebral space of T5/6.