1. Department of Life, Health and Environmental Sciences, University of L’Aquila, Via Vetoio, Coppito 2, 67100 L’Aquila, Italy
2. RomaPro, Polo Sanitario San Feliciano, Via Mattia Battistini 44, 00167 Rome, Italy
3. GLOBE, Italian Working Group on Evidence-Based Orthopaedics, Via Nicola Martelli 3, 00197 Rome, Italy
4. Italian Implantable Prostheses Registry (RIPI), Italian National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy
5. Department of Orthopaedics and Traumatology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo Agostino Gemelli 8, 00168 Rome, Italy
6. Orthopaedic Department, Casa di Cura Villa Betania, Via Pio IV 42, 00165 Rome, Italy
7. UOSD, Department of Mini-Invasive and Computer-Assisting Orthopedic Surgery, San Salvatore Hospital, Via L. Natali 1, 67100 L’Aquila, Italy