'Whiplash injuries' of the neck: a retrospective study.

This is a retrospective study of 102 patients with whiplash injuries of the neck followed up at approximately 2 years. The results show that 67 patients were asymptomatic by this time and the remaining 35 patients still exhibited symptoms. Prognostic indicators were found to be age, occipital headaches, referred symptoms, interscapular pain, abnormal neurological signs, positive radiological findings and osteoarthritic changes of the cervical spine. Symptoms that persisted for more than 2 months indicated prolonged disability.