A simple fracture is when the bone alone is broken, without protrusion through the skin; compound fracture when the bone pierces the skin; comminuted when the bone is broken into many pieces; and complicated when other tissues than the bone are also injured.
Very many - in fact, most fractures are treated under great disadvantages in the horse, as he cannot be induced to keep the injured parts still; and he will, therefore, often destroy the reparative work of months by a few moments of struggling or restlessness. One of the most common fractures is that of the point of the hip, and it is often caused by knocking that bone against the door or gate-post while going too hastily past it, or by falls or other accidents. In this fracture the affected hip (when we view it from behind the animal) is flatter than the sound one, and, when newly done, the broken bone can be easily felt. It is, as a rule, curable, so far as the horse becoming sound goes; the fractured parts either unite or the fragment becomes encysted, and does not cause lameness. A horse with a broken point of the hip is called "hip-down." It is a fault too often overlooked by purchasers, and it is, of course, an unsoundness. When such a fracture has recently occurred, the horse should be kept in a stall, as quiet as possible, for six weeks or two months, when the parts have either united or the detached fragment become encysted, as above explained.
Fractures of individual bones are numerous and serious. An experienced veterinary surgeon should always be consulted.