A system and method for joint arthroplasty may utilize one or more scaffolds to help support an arthroplasty prosthesis for the joint. The apparatus further comprises a head portion adapted to constrain the supplied pressurized fluid to flow substantially along the surgically prepared working surface to dislodge debris there from when the head portion is in contact with the surgically prepared working surface. A door supported on the frame normally closes the front end of the drum and is selectively pivotal to an open position to facilitate charging of the drum.