Definition - Calcium deposits or bone spurs initially feel very soft. However, with time they gradually increase in size, and then the calcium starts to dry up and harden, with a consistency that feels similar to that of chalk. Eventually, the deposits start to feel like a heavy stone in a part of the body, typically on tendons, bones and joints. Calcium deposits and bone spurs are generally painful. It is believed that having a poor diet is related to the development of calcium deposits or bone spurs, so those whose diets are not nutritionally balanced are often at risk. Diets with insufficient calcium and that are lacking in other mineral balance can lead to trouble.
Causes - Most calcium deposits or bone spurs can be attributed to several factors playing a roll in their initial development. The growth of the calcium deposit or bone spur seems to be a residual effect of an imbalance, reducing the bodies inability to process the calcium correctly.
Genetics - Calcium deposits and bone spurs have been linked to the possibility of hereditary influence in horses. Simply put some horses may be genetically more inclined to develop calcium deposits or bone spurs based on their blood line.
Diet - A horse with an imbalance between vital bone building nutrients such as calcium and phosphorus may be at risk for development of calcium deposits or bone spurs. The ideal ratio of calcium to phosphorus is 2:1. If this ratio becomes significantly higher there is not enough phosphorus in the bloodstream to liquify or dissolve the calcium in the bloodstream, making it unusable for bone repair. The result is that the calcium will be summoned to the area in need of repair and simply collect on top of the bone, over time resulting in a calcium deposit or bone spur.
Trauma - Any trauma to a specific area increases the likelihood of a calcium deposit or bone spur forming. The traumatized area will send a signal to the bodies nervous system to send calcium and other nutrients for repair. If the balance is not correct(as mentioned in the diet section) the result is the same - calcium deposits and/or bone spurs. Thoroughbred & standardbred race horses top the list for potential development of calcium deposits and bone spurs due to the nature of the sport. |