I needed surgery for the metastasis on my spine *because* it was paralysing me. I got 10 hours of emergency debulking surgery first, then 20 gy of post-op SBRT radiation a month later. It still took over a year before I could walk with out a walker or cane, and I'll never get all my sensation and mobility back.

Long story short: if safe and possible, fry that sucker with radiation now, before it grows and compresses your spinal cord. Mine went from a slight pain in my mid spine to complete paraplegia in just over 4 weeks.