Fístula sigmoido-acetabular: uma rara complicação da artroplastia total de quadril
Fistulas between the gastrointestinal tract and bony structures of the pelvis are an extremely rare complication resulting from hip arthroplasty, whether primary or revisional. Only 15 cases were described in the English language literature containing this association. The predisposing factors described are Crohn’s disease, acute diverticulitis, use of corticosteroids and radiotherapy for malignant disease in the pelvis. In addition, it is related to the high morbidity and mortality rate due to late diagnosis, a fact that leads the patient to sepsis. We will describe a case of a male patient, without the risk factors described above, that developed a fistula between the sigmoid colon and the acetabulum after the second revision surgery of hip prosthesis. The patient had a good evolution due to early diagnosis and intervention.