title: Effect of bone cement viscosity and set time on mantle area in total knee arthroplasty.
abstract: To assess the impact of bone cement viscosity on total knee arthroplasty, we compared 1 high-viscosity and 2 medium-viscosity cements with respect to mantle area and zone-specific intrusion depths into the tibial plateau. We analyzed postoperative radiographs to determine penetration area and depth in 72 consecutive patients (79 knees) in whom DePuy II (n = 11), Endurance (n = 34), or Simplex-P (n = 34) cement was used. Penetration into the tibial plateau (anteroposterior zones 1-4) was significantly reduced with use of the high-viscosity DePuy II cement but did not differ significantly between the 2 medium-viscosity cements, Endurance and Simplex-P. Surgical and tourniquet times were significantly decreased with the quicker setting DePuy II cement. Given these findings, additional studies are warranted to assess the long-term impact of the lower intrusion depths found with DePuy II cement. Such differences in cement penetration could jeopardize long-term fixation and lead to higher long-term device failure rates.
authors.affiliation: Southern Illinois University School of Medicine, Springfield, 62794-9679, USA.
authors.forename: Michael
authors.initials: M
authors.lastname: Kopec
authors.forename: Joseph C
authors.initials: JC
authors.lastname: Milbrandt
authors.forename: Nick
authors.initials: N
authors.lastname: Kohut
authors.forename: Brian
authors.initials: B
authors.lastname: Kern
authors.forename: D Gordon
authors.initials: DG
authors.lastname: Allan
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation / Q000379:methods*; D001843:Bone Cements; D002484:Cementation / Q000379:methods*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery; D008297:Male; D011475:Prosthesis Failure; D020127:Recovery of Function; D012189:Retrospective Studies; D014783:Viscosity
chemical_list: D001843:Bone Cements