Kellam PJ, Dekeyser GJ, Rothberg DL, et al. - This study was performed to ascertain whether radiographic anatomic differences were evident when comparing bilateral lateral radiographs of uninjured patient ankles. Researchers conducted a retrospective review of patients with bilateral lateral ankle radiographs for mid- or fore-foot related complaints. They obtained patient demographics and radiographic measurements relating to the anterior distal tibial angle (ADTA) and plafond radius of curvature (ROC). Similarities were determined using the Paired student's t-test. They analyzed 478 patient radiographs and 215 met inclusion criteria. The ADTA and plafond ROC measurements were found to be reliable and symmetrical in patients. Moreover, it was shown that females are more like to have a flatter ADTA (closer to 90 degrees) and a smaller ROC of their plafond. The data validate that the lateral radiograph of the uninjured ankle may be applied as a template for reduction when treating articular injuries of the distal tibia.