Perbandingan luaran fungsional Total Knee Replacement Prostesis Cruciate Retaining dan Cruiciate Substituting di RS Cipto Mangunkusumo periode Januari 2011-Februari 2012 = Comparison of functional outcome of Total Knee Replacement between Cruciate Retaining and Cruciate Substituting Prosthesis in Cipto Mangunkusumo Hospital from January 2011-February 2012 / Radi Muharris Mulyana