#$%^&*AU2013203287B220151217.pdf#####H: MTMntCnvovcn NRPonbl DCCAhM5054106_I.DOC-8/04/2013 ABSTRACT The present invention provides compositions and methods for facilitating fusion of bones in a joint. The present invention provides compositions and methods for promoting fusion of bones in arthrodetic procedures. In one embodiment, a method of performing an arthrodetic procedure comprises providing a composition comprising PDGF disposed in a biocompatible matrix and applying the composition to a site of desired bone fusion in a joint.