Infectious diseases can produce arthritis. Rickettsial arthritis is seen with Rocky Mountain Spotted Fever and canine ehrlichiosis, and spirochetal arthritis with Lyme Disease (all of which are tick-borne diseases). Fungal arthritis is a rare complication of a systemic fungal infection.
Symptoms are similar to that of immune-mediated arthritis.
Septic arthritis is caused by bacteria that gain access to joints through open wounds, soft-tissue infections around joints, and via the blood stream. Injecting steroids into a joint carries a small risk of introducing bacteria.
This involves opening the joint and removing all infected and devitalized tissue. This is followed by a long-term course of antibiotics. Most of the tick-borne diseases respond to doxycycline or tetracycline. Some dogs will have permanent joint damage.
Please contact your veterinarian with questions regarding this condition.
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