The Journal of Bone and Joint Surgery, Vol 72, Issue 3 363-368, Copyright © 1990 by Journal of Bone and Joint Surgery, Inc
The effect of centrifugation on the mechanical properties of cement. An in vitro total hip-arthroplasty model
HC Chin, RN Stauffer and EY Chao
Department of Orthopedics, Mayo Clinic, Rochester, Minnesota 55905.
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.