**Management of Bone Loss in Primary and Revision Knee Replacement Surgery**

Matteo Fosco1, Rida Ben Ayad1, Luca Amendola1, Dante Dallari1 and Domenico Tigani2 *1First Ward of Orthopaedic Surgery, University of Bologna, Rizzoli Orthopaedic Institute, Bologna 2Department of Orthopaedic Surgery, Santa Maria alle Scotte Hospital ,Siena Italy* 
