sequestrum has formed there may be a non-healing wound with intermittent the wound, or there may be the expulsion of bony tissue through the skin.
from
Diagnosis is made through radiography where sclerosis, sequestrum and involcrum are visible at the site of heat, pain and swelling. Treatment is rest, cold hydrotherapy, NSAID’s, systemic antibiotics and if necessary, sequestrectomy.
There are a few common types of periostitis/ostitis seen in the horse.
A common form of periostitis & ostitis in horses is , a condition involved in Dorsal Metacarpal Disease. These ‘shin splints’ occur over the dorsal aspect of the cannon bone, primarily in the forelimb. It is most commonly seen in horses who start intense or fast work without adequate conditioning prior. It has been shown that the cannon bone bows with an increase in weight-bearing and ground impact forces. This causes compression of the cortex. The body responds by laying down new bone under the periosteum to increase bone strength at the stress point. This is a normal response but in horses that are regularly worked at speed, more bone is laid down around the dorsal cannon. These horses are mild to moderately lame, stiff and reluctant to stride out. As new bone is laid down the surface of the dorsal cannon is & irregular. This will smooth out with age & remodelling, but the bowed appearance may remain. Diagnosis is usually based on the horses training history and signs & symptoms. Radiographs can be taken to rule out fractures. Treatment is rest with anti-inflammatory therapy for a few weeks. A CEP needs to be followed to return these horses to athletic performance. Prognosis is excellent. Another common form of periostitis/ostitis is the development of ‘ ‘. This can involve the cannon bone, splint bones &/or the interosseous tissue. Direct trauma is usually the cause such as a kick or from the opposite limb. can also result in splints. This is common when horses are worked on hard ground or in young/unfit horses working at speed. Traumatic splints occur unilaterally and mid-cannon, either medially or laterally whereas concussive splints occur bilaterally, symmetrically and just below the carpus typically on the medial aspect. It is more common to see splints develop on the forelimbs vs. hind limbs.
Splints are termed
splints when they are hot and painful with swelling and possible
lameness and splints can develop when there is inflammation and exostoses development within the interosseous tissue between the splint bone and cannon. These splints are painful and usually cause lameness. Splints usually resolve themselves over time with rest, anti-inflammatory therapy and a CEP. Prognosis is excellent. splints when only a bony swelling remains.
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