A biomechanical cadaveric analysis of polymethylmethacrylate-augmented pedicle screw fixation.


OBJECT Instrumentation of the osteoporotic spine can be fraught with complications such as hardware failure. A cadaver study was performed to determine the biomechanical performance of polymethylmethacrylate (PMMA)-augmented pedicle screws. METHODS Three osteoporotic human cadaveric specimens with a mean bone mineral density of 0.70 g/cm2 were used to… (More)


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