Implant for the Four-Corner-Fusion The Sliding Plate is an innovative implant for partial midcarpal arthrodesis of the wrist (“Four-Corner-Fusion“). For pseudo-arthrosis of the Os Scaphoid and aged SL-band ruptures (SLAC and SNAC wrist) this therapy has established itself as treatment strategy. The application of a compression between the to be merged carpal elements hereby benefits a complete arthrodesis. The Sliding Plate offers the possibility to apply the compression centrally by means of turning the implant through sliding holes which are arranged in a circular way.