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.

Figure 2 Preoperative magnetic resonance. A: Magnetic resonance sagittal position of thoracic spine before operation. It can be seen that T2-6 spinal canal is obviously compressed and the signal of spinal cord changes; B: Intervertebral space of T2/3; C: Intervertebral space of T3/4; D: Intervertebral space of T4/5; E: Intervertebral space of T5/6.

Figure 3 Operation flow chart. A: Patient lesion segment; B: Screw was placed in the diseased segment, two proximal segments and two distal segments. At this time, the screw is not completely screwed in; C: The lamina of the diseased segment was removed, and the upper and lower intervertebral discs of the diseased segment were removed; D: Place the connecting rod and lock it, and push the diseased segment forward.

Figure 4 Postoperative diabetic retinopathy and computed tomography. A and B: Orthoposition and lateral position of postoperative thoracic vertebra diabetic retinopathy; C: Using computed tomography to measure Kyphosis-Line before operation; D: Measure that the vertebral body moves forward about 0.44 mm; E: Measure Kyphosis-Line after operation.

Figure 5 Postoperative magnetic resonance. A: Postoperative magnetic resonance sagittal position, Spinal canal and spinal cord compression relief; B: Intervertebral space of T2/3; C: Intervertebral space of T3/4; D: Intervertebral space of T4/5; E: Intervertebral space of T5/6.

Figure 6 Review diabetic retinopathy three months after operation. The rib osteotomy has healed. A: Diabetic retinopathy (DR) orthoposition position three months after operation; B: DR lateral position three months after operation.