1. Orthopedic Surgeon of the Dr. José Frota Institute, 1816 Barão do Rio Branco St., Fortaleza, Ceará, Brazil
2. Orthopedic Surgeon in Articular Clinic Medical Center, 2340 Pontes Vieira Ave., Fortaleza, Ceará, Brazil
3. Department of Orthopedics in Walter Cantídio Hospital University Federal of Ceará, 1290 Pastor Samuel Munguba St., Fortaleza, CE, Brazil