1 The prothrombin or vitamin Kâdependent group includes factors II, VII, IX, and X. 2  The fibrinogen group includes factors I, V, VIII, and XIII. 3  They are the most labile of the factors and are consumed during the coagulation process.
It is important to classify the type of fracture, because some fractures are more difficult to treat than others. Intra-articular fractures, open fractures, comminuted fractures, and displaced fractures (when the broken pieces of bone do not line up straight).are more difficult to treat, for example. Sometimes, the other bone of the forearm (the ulna) is also broken. This is called a distal ulna fracture.
When the bone is not in proper alignment, the fracture is called displaced. In proximal humerus fractures, the severity is often described by how may of the major parts of the proximal humerus fracture are displaced. There are four parts of the proximal humerus, so a displaced fracture can either be 2-part, 3-part, or 4-part (a non-displaced fracture is, by definition, 1-part).