Jarred Barber

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We tested the hypothesis that two pedicle screws placed in convergence offer more resistance to axial pullout than do two pedicle screws placed in parallel. Eight fresh cadaveric lumbar spines, L2-L5, were harvested. Individual vertebra were then paired for testing. Into each L2 and L3 vertebra, a pair of pedicle screws were inserted. The screws were placed(More)
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