1. Orthopedics and Traumatology-Hip Preservation Unit, Institute of Osteoarticular Diseases, Centro Médico Imbanaco, Cali, Colombia.
2. Department of Anesthesiology, Centro Médico Imbanaco, Cali, Colombia.
3. Hip Preservation Unit, Institute of Osteoarticular Diseases, Centro Médico Imbanaco, Pontificia Universidad Javeriana de Cali, Cali, Colombia.
4. Research Institute, Centro Médico Imbanaco, Cali, Colombia.