A method for bone-cement interface thermometry. An in vitro comparison between low temperature curing cement Palavit, and Surgical Simplex P.
Previous temperature measurements at the bone-cement intreface have all shown large variations. To evaluate more precisely the temperature profiles during cement curing, a new experimental model was developed. Eight thermocouple electrodes at the bone-cement interface for each test specimen were used for continuous temperature recordings. Temperature profiles of Palavit was compared with those of Surgical Simplex P in an in vitro model using isolated pig femurs. Defects of 12 x 17 mm in the femoral metaphysis were filled with cement. In six tests with each type of cement, Palavit peaked at a temperature of 50 +/- 0.5 degrees C, whereas Surgical Simplex P peaked at 60 +/- 0.7 degrees C. Core temperatures reached peak values of 70 +/- 0.8 degrees C and 95 +/- 2.2 degrees C for Palavit and Surgical Simplex P, respectively.
Harving
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Biomechanics Laboratory, Orthopedic Hospital, Arhus, Denmark.
Søballe
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Bünger
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D000818:Animals; D001843:Bone Cements / Q000737:chemistry*; D001842:Bone and Bones / Q000378:metabolism*; D006801:Humans; D066298:In Vitro Techniques; D007231:Infant, Newborn; D020366:Methylmethacrylate; D008768:Methylmethacrylates / Q000737:chemistry*; D013552:Swine; D013696:Temperature
D001843:Bone Cements; D008768:Methylmethacrylates; C068061:Palavit G; D020366:Methylmethacrylate