Osteomyelitis of the medial trochlear ridge of the talus in a horse



A 12-year-old Quarter Horse gelding was evaluated for chronic recurrent right hindlimb cellulitis and severe lameness. Chronic tibiotarsal joint sepsis and osteomyelitis of the medial trochlear ridge were diagnosed and confirmed cytologically, arthroscopically and histologically. Trauma and secondary cellulitis and chronic septic arthritis were suspected aetiological factors.