[annapurna]

One other option you might be able to push for if your company self-funds its insurance: the recovery from ADR surgery is comparatively faster than fusion and may be able to be shown to be more likely to get you back to work faster and more completely. If your company is willing to work the appeal with you, they might be able to argue to get you ADR to get you back to work faster. Practically, fusion is going to have you on limited duty work for quite a while. Hopefully, it will work well and fix your pain but the fusion itself will have you on restricted lifting for months or more. You might see if your doctor could quantify that time, estimate if he/she'd do anything different if it was an ADR instead and try selling to your company.