Whiplash injury--a retrospective study on patients seeking compensation.

The purpose of this cohort study is to evaluate the objective long-term findings and the final outcome of a population suffering from whiplash-associated disorders (WAD) after rear-end car collision and claiming legal compensation. Eight hundred and sixty-six patients after whiplash injury were followed up on average 32 months post-trauma. All patients had clinical examination and radiographs performed on the day of the accident and at follow up. MRI, CT scan, bone scan, electromyographic (EMG) tests were performed upon request of the treating physician and correlated by the authors with the clinical findings. Cervical pain was the most common complaint (96%). Radiating pain to one side of the upper limbs or the shoulder was also very common (36 and 24%, respectively). Chin to chest test was found to be a strong indicator in differentiating between the less severe (grades 1 and 2) to more severe (grades 3 and 4) WAD patients. In 10% of the patients with normal radiographic findings, degenerative changes were found at follow up. CT scan and MRI did not add to patient diagnosis, except for those patients suffering from degenerative changes and decreased range of motion (RoM). Based on our findings the initial radiograph taken in the emergency room was the best imaging modality and probably the only one needed routinely following whiplash injury. Although this is a special subgroup of patient seeking compensation, the overall prognosis is favorable in all grades of WAD injury and there is no need for further diagnostic expenditures.