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Table 1 Inclusion criteria of the original randomized controlled trial

From: A more than 20-year follow-up of pain and disability after anterior cervical decompression and fusion surgery for degenerative disc disease and comparisons between two surgical techniques

Inclusion criteria

Exclusion criteria

• > 6 months of neck pain and radiculopathy of degenerative origin

• MRI and clinical findings of cervical nerve root compression

• myelopathy

• psychiatric disorder

• drug abuse

• previous spine surgery

  1. MRI = magnetic resonance imaging