Osteomyelitis in the dog and cat

Osteomyelitis was seen in 38 dogs and five cats over a 10 year period. Seventy per cent of cases occurred as a complication of orthopaedic surgery. The remainder were due to spread from infective foci elsewhere in the body. Staphylococcus aureus was the commonest organism isolated from long bones. Bone infection was responsible for delayed union in 13 fractures and non-union in four. Surgical treatment was necessary for the resolution of most cases.