HIGHLIGHTS
SUMMARY
Four-rod constructs have traditionally been the most common rod configuration; however, more recently, there has been a trend toward utilization of additional rods (i.e., 5- and 6-rods) spanning lumbar PSOs with the goal to further reduce the risk of pseudarthrosis and rod breakage. While biomechanical properties of 4-rods (two primary rods + two satellite rods or two accessory rods), have previously been reported, there is limited understanding of the relative biomechanical behavior of "super" multi-rod constructs (5-, 6-rods) spanning a lumbar PSO. When evaluating 6-rods, compared to 4 . . .
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