Value of knee imaging by GPs requires rigorous assessment

EDITOR—In his editorial McNally reports that magnetic resonance imaging has had a great effect on the management of internal derangement of the knee and is increasingly available to hospital specialists and general practitioners.1 Whether general practitioners' access to imaging has as great an effect as use by a knee specialist, however, is not known.2 This question is crucial to patient management and outcome, and thus to cost effectiveness. Access to magnetic resonance imaging by general practitioners for patients with …