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Inclusion criteria
| • Aged 20 to 65 years. | |
|
• Study 1: Neck and arm pain for at least 3 months, and a corresponding herniation involving one cervical nerve root (C6 or C7) Study 2: Neck and arm pain for at least 3 months, with corresponding spondylosis involving C6 and/or C7 | |
| • Arm pain intensity of at least 4 on a scale from 0 (no pain) to 10 (worst possible pain) | |
| • Willing to accept either of the treatment alternatives | |
| • Neck Disability Index (NDI) > 30% |
