Radiology | |
 CT at the baseline and at 1-year follow-up for assessment of foraminal area | |
 MRI at the baseline and 1-year follow-up for assessment of nerve-root compression and dislocation | |
Expected outcome | |
 Expected NDI, NRS for neck and arm pain for willingness to undergo surgery. | |
 Expected NDI, NRS for neck and arm pain for willingness to undergo nonsurgical treatment. |