Aim To describe the technique of the four-corner fusion with two retrograde crossed headless screws in cases of carpal collapse.Methods This technique is a consolidated procedure performed in cases of scaphoid non- union advanced collapse (SNAC) typeII and III, scapholunate advanced collapse (SLAC) type II and III and in other cases of carpal colla...

By Dariush Ghargozloo, Alessandro Tomarchio, Mauro Ballerini, Emanuela Saccalani, Giorgio Grazioli, Gianpaolo Chitoni