Aspen Device

[skootercat]

I had an L4 S1 fusion in early Feb. in Colorado. The surgeon used 2 Aspen devices and a unilateral rod and screw assembly. After surgery the L4 screw was shown to be installed crooked. After 3 weeks my spine was slipping and the xrays showed the screw backing out by 2 mm. Continuous pain and spasms in my lumbar spine and pelvis. Can't walk without a cane .
3 months later the screw is backing out even more and the pain has not subsided. I am considering having another rod and screw assembly on the other side to stabilize the spine and I wonder what the Aspen devise does and if it should have stabilized the spine in the first place.