Scar tissue - Arachnoidititis

[Cindy5266]

I had an intradural extramedullary schwannoma removed from L2 nearly 18 years ago. I was fortunate that I recovered quickly and with physical therapy resolved most weakness issues including a foot drop. 4 years ago I started experiencing a progressive numb left foot and tightness in my left calf. A MRI revealed clumped nerve roots extending from L1-3 where I had the laminectomy suggestive of arachonoiditis. I also have a dissecated disk at l4/5 and emg findings of chronic radical apathy at L4/5 with evidence of reinnerveation. Recently an orthopedist suggested that my symptoms are a result of the scarring and there not much to be done. My question is this - has anyone had scar tissue become active so long after surgery. Wouldn't there have to be something that "caused" the activation that can be treated?

Any thoughts would be appreciated