Читать книгу Fractures in the Horse - Группа авторов - Страница 97

A fracture is considered articular if it communicates with a joint. From a radiographic perspective, this involves discontinuity in subchondral bone and by implication overlying cartilage. A high index of suspicion for articular involvement can be raised with the presence of synovial distension. Articular involvement can have a major impact on case management and prognosis and, when suspected, radiographs should be carefully scrutinized using lesion‐oriented oblique projections.

Slab fractures connect two, usually proximal and distal, articular surfaces of cuboidal bones. Third carpal and central and third tarsal bones are most commonly affected. Dorsoproximal–dorsodistal (skyline) radiographs of the proximal and distal rows of the tarsal bones are not possible, which can make identification and determination of configuration difficult particularly with respect to the central tarsal bone. CT has made a major contribution to the database of injuries, and knowledge of common configurations aids radiographic evaluation (Chapter 29).