UPDATE- I am cautiously optimistic that lumbar traction treatments have alleviated the bulk of my symptoms to where I can walk mostly without a cane nowadays and even do very light [with cane for support] yardwork [picking up blowdown after recent storm]. this was after 2 weeks of treatments. I had previously read about it and was put off by warnings that unstable spondy should not try it, but I said to hell with it and the PT person said I needed to do it always with legs bent, so that is how I've been doing it. the commercial traction tables cost thousands of dollars and the home stretchers cost hundreds, but I found one [called, simply enough, "spinal stretch"] that cost about $40 bucks that one hooks one end into a door jamb and the other end terminates in a back belt one cinches tighly around one's hips, lies on the ground, takes up the slack in the spring-loaded tension belt [acts as governor of tension preventing sudden changes in tension], then using a device similar to the pump handle on a tire jack, ratches up the tension until one is just about pulled into the door but not quite, maybe an inch or so of movement [that represents about half of one's body weight or the equivalent of a -30 degree angle on an incline spinal inversion table] and just lies there for between 5-10 minutes, then ratchets down the tension and lie down another 5-10 minutes, then slowly get back up. at first it left my back sore afterwards, as the muscles that weren't used to that kind of stretching protested, then afterwards all it did was make my sciatica symptoms go away [decompresses the sciatic nerve] for several days afterwards. I've been doing it every day in an attempt at withdrawing the disc material from an l1 popped disc that had been impinging on my spinal cord, I can tell that has helped as well because I can now lie down flat on my back whereas I could not before without pain after a few minutes.
I write this in the hopes that other people may read this and find a possible escape route from their lumbar issues relating to sciatica, as well.
I am cautiously hopeful that at least I can push back my complex fusion surgery/laminectomy to sometime in the distant future. wish me luck.