Posterior and posterolateral spinal fusion with the Steffee variable p
lating system have been performed on 176 patients at Walter Reed Army
Medical Center since November 1985. This report covers the authors' ea
rly experience using the Steffee device on 39 patients. All of the 39
patients (100%) were available for a minimum follow-up of 2 years. Com
plications occurred in 26% of the patients. Radiographic pseudarthrosi
s occurred in 8% of the patients. The findings suggest that lumbar and
lumbosacral fusion supplemented with Steffee plate instrumentation ar
e associated with a low incidence of pseudarthrosis and acceptable mor
bidity overall.