If you have pain only in your arm and hand, you may want to explore a peripheral nerve stimulator such as Stimwave or Stimrouter. They are much simpler and safer than spinal cord stimulators and can be removed in 20 minutes if the need arises. A PNS has leads only along the nerves serving the specific area where you have pain. No wires are placed in your spinal canal. Stimwave has an external, not an implanted, battery. Talk to your doctor about a PNS. Many pain doctors implant them. It's a reasonable first step rather than jumping straight to a SCS for what sounds like a localized pain. If it doesn't work, you'll always have the more extreme SCS as a backup, but you might be pleasantly surprised by the relief you get from a PNS.