20 patients operated on with discectomy and anterior cervical fusion because of chronic symptoms after whiplash injury were examined 4 years after surgery. The commonest indications for surgery were disabling headache and neck pain and radiographically verified disc protrusion. At follow-up, 11 patients had reduced headache and neck pain, while paresthesia and radicular pain were diminished in 9 patients. Based on Robinsson's criteria for the evaluation of surgical results, 2 patients had good, 9 had fair and 9 had poor results.