title: The temperature problem at the bone-acrylic cement interface of the total hip replacement.
abstract: Loosening of total joint replacements may be caused in part by thermal necrosis of bone in contact with the high temperature of the polymerizing PMMA acrylic cement. This study reports a method to reduce the temperature of the bone-cement interface below the temperature at which bone results in definite necrosis. By precooling the acetubular component to --84 degrees before insertion into the cement, the temperature during polymerization at a simulated bone-cement interface can be reduced from 70 degrees to 49 degrees with an increase of only approximately 51/2 minutes in the cement setting time.
mesh_terms: D001843:Bone Cements; D006621:Hip Joint / Q000601:surgery*; D006801:Humans; D007595:Joint Prosthesis; D008722:Methods; D011312:Pressure; D013696:Temperature
chemical_list: D001843:Bone Cements