**Author details**

Giorgio Maria Calori\* , Massimiliano Colombo, Emilio Mazza, Miguel Simon Bucci, Piero Fadigati, Alessandra Ines Maria Colombo and Simone Mazzola

\*Address all correspondence to: gmc@studiocalori.it

Orthopaedic and Trauma Reparative Surgery Department, Gaetano Pini Institute, University of Milan, Italy
