The effect of centrifugation on the mechanical properties of cement. An in vitro total hip-arthroplasty model.
An in vitro total hip-arthroplasty model was evaluated to determine if centrifugation of bone cement results in greater static strength and low-cycle fatigue strength than hand-mixing. The static-failure test of the stem, cement, and simulated bone composite demonstrated that the centrifuged cement had significantly greater static strength than the hand-mixed cement. However, under low-cycle fatigue tests on the same composite models, the centrifuged and hand-mixed specimens were not significantly different.
Chin
H C
HC
Department of Orthopedics, Mayo Clinic, Rochester, Minnesota 55905.
Stauffer
R N
RN
Chao
E Y
EY
D001696:Biomechanical Phenomena; D001843:Bone Cements; D002498:Centrifugation; D006622:Hip Prosthesis; D006801:Humans; D066298:In Vitro Techniques; D008768:Methylmethacrylates; D011312:Pressure; D013314:Stress, Mechanical; D013718:Tensile Strength
D001843:Bone Cements; D008768:Methylmethacrylates