Coffin bone fracture

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As Hufbeinbruch or Hufbeinfraktur fractures are in the area of the distal phalanx of horses referred.

etiology

A frequently mentioned cause of a coffin bone fracture is when the hoof hits hard against obstacles, which is not realistic when looking more closely at the forces that act on a coffin bone during the horse's gallop. Such a fracture can effectively only develop as a consequence of coffin bone atrophy, which in turn can have a wide variety of reasons. In the rarest case this is a spontaneous effect.

Different types of coffin bone fracture are differentiated according to their location: coffin branch fracture, sole edge fracture, saggital fracture (fracture through the middle of the coffin bone with joint involvement), joint edge fracture with avulsion of the tendon attachment , fracture of the ossified coffin cartilage , open fracture, multiple fracture and fissure .

Symptoms

The symptoms depend on the severity of the fracture and its location. In general, severe symptoms of lameness initially dominate , which get better after about a week as the injury-related bruise subsides. A strong pulsation can be felt in the area of ​​the foot artery and the hoof feels very warm. The horse is also sensitive to percussion of the hoof. Likewise, it usually shows pain reactions even if the hoof is twisted slightly (especially if the coffin joint is involved in the rotation). There may also be swelling of the coronet.

Diagnosis, differential diagnosis

The diagnosis can be made comparatively easily using an X-ray (Oxspring). The differential diagnosis especially nail puncture , nailing , contusion , sprain and sterile Huflederhautentzündung in question.

Treatment, prognosis

If possible, surgical therapy using osteosynthesis should be aimed for. Sagittal fractures, coffin branch fractures and joint edge fractures in particular can be healed regularly in this way. Conservative therapy can also be attempted using immobilization, ideally using plaster, plastic splints or pressure bandages, but it is inferior to the surgical method. The following are also used: cold hoof bandages, box rest, soft litter, etc. v. m. The prognosis of open fractures, old fractures, and splinter fractures is poor.