Abstract
This paper described a case of talus osteonecrosis in a 13-year-old female with a diagnosis of T-type acute lymphocytic leukemia, who underwent chemotherapy and treatment with glucocorticoids, attended at the Orthopedics and Traumatology Sector of our institution. After approximately six months of treatment, the patient began to complain of sporadic pain in her left ankle with progressive worsening. Bone scintigraphy and magnetic resonance imaging of the ankles showed the presence of avascular osteonecrosis of the bilateral talar body. We opted for non-surgical treatment with analgesia and anti-inflammatory drugs, in addition to removal of the load associated with the use of immobilization of the extramedullary tutor for four weeks, followed by physical therapy rehabilitation with analgesia and progressive increase in load.