Study of the binding intensity of bone-cement interface increased by bone cement oscillator in fatigue experiment / 中国矫形外科杂志

ABSTRACT

[Objective]To evaluate the effect of bone cement oscillator on increasing bone cement-bone interface binding intensity.[Method]Sixty fresh femoral bones of adult pig were randomly divided into experiment group and control group under the 30%,50%,70% ultimate shear strengh of the cement/bone.There were 10 samples in each subgroup.Mechanics test was performed by MTS-810 material testing machine,and the binding intensity of bone cement-bone interface in oscillating cement-bone interface binding intensity in experiment group was compared with control group.[Result]Mechanics test showed bone cement group were significantly stronger than control group under the 30%,50% ultimate shear strengh of the cement-bone(P 0.05).[Conclusion]Bone cement oscillator can increase binding intensity of bone-cement interface,and effectively reduce long-term aseptic loosening of artificial prostheses.