Leonard Trask: the wonderful invalid: the first American description of ankylosing spondylitis.

This report describes the first published clinical account of a case of ankylosing spondylitis in the United States. The patient progressively developed very severe kyphosis with resultant severe disability. The condition apparently started after an accident, and the report has interesting medicolegal implications.

Risk factors for neck pain: a longitudinal study in the general population.

The objective of the study was to examine the 1-year cumulative incidence of episodic neck pain and to explore its associations with individual risk factors, including a history of previous neck injury. A baseline cross-sectional survey of an adult general population sample made up of all 7669 adults aged 18-75 years, registered with two family practices in South Manchester, United Kingdom, identified the study population of adults with no current neck pain. This study population was surveyed again 12 months later to identify all those who had experienced neck pain during the follow-up period.