$9.99. This app was originally designed by orthopaedic surgeons for orthopaedic surgeons but transitions as an ideal musculoskeletal trauma app for ED doctors. The app is divided into fractures and dislocations with the same format of discussion for each bone/joint pathology – a page of facts (anatomy, epidemiology and common injury mechanisms, and examination features), an accompanying image (normal bone alignment and injury-specific views), injury classification and treatment. Very accessible and cheaper than a text book. Highly recommended.