The following ankle fracture types were tested: Weber A lateral malleolar, Weber C lateral malleolar, bimalleolar, trimalleolar, lateral malleolar with increased medial clear space (bimalleolar-equivalent), ligamentous Maissonneuve (only injury identification was tested), bimalleolar fracture-dislocation, and open trimalleolar fracture-dislocation.
Participants correctly answered a median of 63% of questions that tested identification of bony injuries (IQR 53-75%), and 50% of questions that tested identification of ligamentous injuries (IQR 33-67%). Sixteen participants (89%) correctly identified Weber A lateral malleolar and trimalleolar fractures, 15 (83%) correctly identified Weber C lateral malleolar fracture, 10 (56%) correctly identified bimalleolar fracture, and 9 (50%) or fewer correctly identified bimalleolar-equivalent, ligamentous Maissoneuve, bimalleolar fracture-dislocation, and open trimalleolar fracture-dislocation on x-ray.