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Peer-reviewed veterinary case report

Stallion with severe lameness in left forefoot after formalin

By Dart, A J & Pascoe, R R·Published in Australian veterinary journal·1988·Oakey Veterinary Hospital, Australia·View original on PubMed

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Original publication title: The pathogenesis and treatment of osteomyelitis and laminitis in a stallion after the prolonged topical application of formalin to the distal phalanx.

Species:
horse

Plain-English summary

A 12-year-old Quarterhorse stallion was brought in for severe lameness in his left front foot, where a large cavity was found in the sole. X-rays showed an infection in the bone (osteomyelitis) likely caused by prolonged use of formalin, a chemical used for treating wounds. The vet surgically removed the infected bone and fitted the horse with special heart bar shoes to help support his feet. After surgery, the horse showed improvement, with his hoof realigning significantly within a month. This case demonstrates that effective treatment for hoof problems like laminitis is possible with the right approach.

People also search for: horse lameness treatment · Quarterhorse hoof infection · laminitis treatment in horses

Abstract

A 12-year-old Quarterhorse stallion was presented with a severe lameness in the left forefoot. There was a 3 cm diameter cavity in the sole that extended to the solar surface of the distal phalanx. Radiographs revealed an osteomyelitis and a sequestrum which probably developed following the prolonged topical application of 10 percent formalin. The sequestrum was removed and the infected bone curetted under general anaesthesia. The horse was shod with heart bar shoes on both front feet 7 days after the surgery. Eight months later, radiographs showed marked rotation of the distal phalanx despite continual shoeing with heart bar shoes. Surgical resection of the dorsal wall of the hoof at the toe removed the pressure applied by the laminar wedge, and combined with the stabilising and supporting action of the heart bar shoe, permitted realignment of the distal phalanx approximately 30 degrees closer to the normal skeletal axis by 26 days post-operatively. This case highlights some of the recent developments in the treatment of laminitis and suggests that effective treatment is possible if the value of the animal warrants the time and investment.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/3415618/