Chronic osteomyelitis is an inflammatory process caused by an infecting microorganism leading to bone destruction. 1 The most used classification system is the Cierny-Mader classification (Fig. 1). 2 In addition to the anatomical type, this system classifies the general condition of the patient (host) and the disease's impact on function, to provide treatment guidelines.Leg and heel chronic osteomyelitis includes leg and heel chronic osteomyelitis on a continuous bone (the bone remains stable after débridement), and leg and heel chronic osteomyelitis after a fracture or septic pseudarthrosis (after 6