1. Deparment of Orthopaedic Surgery, Hospital Universitario Virgen de la Victoria, Málaga, Spain
2. Deparment of Orthopaedic Surgery, Hospital Regional Universitario de Málaga, Málaga, Spain
3. Deparment of Orthopaedic Surgery, Hospital de Antequera, Antequera, Málaga, Spain
4. Deparment of Orthopaedic Surgery, Clínica Espejo, Paseo Reding, Málaga, Spain
5. Deparment of Orthopaedic Surgery, Hospital Vithas Parque San Antonio, Málaga, Spain