Not sure where I might ask this question so thought I'd try here.

I'm 63 years old and the degenerative arthritis in my spine really took a toll this last fishing season. Took forever to figure out where the problem was originating from because it was manifesting itself in R side sciatica extending into the calf and an aching R front hip and quad. Standing for an extended period of time got to be impossible such that I'd often have to sit bankside. Turns out, it's my sacrum. The neurologist has suggested an sacroiliac (SI) joint fusion. I've already tried PT, chiropractic care, Pilates, acupuncture, custom insoles, basically everything so does anyone have an idea how an SI fusion might affect my mobility when fly fishing? How if you know? I'm considering two cortical steroid injections (one in April followed up 3 months later in July to cover the fishing season) and physical therapy to try and postpone undergoing an SI fusion which I view as inevitable. Any insight that one might share would be much appreciated.

Thanks in advance.