History of C6-C7 disk replacement with residual left upper extremity pain There is artifact from disc prosthesis at the C6-C7 levels limiting the exam in this area. Vertebral body heights are preserved. Alignment is grossly within normal limits. Bone marrow signal is within normal limits. The visualized spinal cord is normal in signal and morphology.Level by level findings are as follows:C2-C3: No disc bulge, spinal canal stenosis, or neuroforaminal narrowing.C3-C4: No disc bulge, spinal canal stenosis, or neuroforaminal narrowing.C4-C5: Minimal disc bulge. No spinal canal or neural foraminal stenosis.C5-C6: Minimal disc bulge and mild uncovertebral joint hypertrophy. This creates minimal left neural foraminal stenosis, better seen on the oblique sequence. Right neural foramen is patent. No spinal canal stenosis.C6-C7: Evaluation significantly limited by artifact from disc prosthesis. The lateral aspect of the bilateral neural foramen are patent. No high-grade central canal stenosis.C7-T1: Small central disc protrusion. No significant neural foraminal or spinal canal stenosis.
1. Postoperative changes from placement of C6-7 disc prosthesis. Resulting susceptibility artifact markedly limits evaluation of the C6-7 level. No high-grade neural foraminal or spinal canal stenosis at this level. CT may be helpful to assess the neural foramen if clinically indicated.2. Minimal C5-6 left neural foraminal narrowing. 