Hi, I had a workplace injury in December 2021, drs initially treated me for shoulder bursitis, pain was in shoulder and down my right arm into my thumb and pointer finger, I was given 2 cortisone injections that didn’t help, I then had an MRI to check the brachial plexus and all came back clear. Dr did MRI of cervical spine and found c5/6 and c6/7 were herniated, I underwent 6 months of physio 3x week, still no relief so I was given an epidural injections in both c6 and c7 nerve roots, all this done was cause the pain to worsen and move to my neck, 3 months later I ended up having C6/7 adcf, waking up from surgery I had a strange burning buzzing sensation down my entire right side, drs assured me everything was normal, the arm and neck pain were worse than ever!!!
3 months post surgery, new MRI showed surgery was successful regardless of ongoing pain, I was sent for EMG which was within normal limits, after this appointment I was diagnosed with right upper quadrant CRPS.
6months pass and the pain burning pressure and pain now runs down my entire right side, I have since been diagnosed with ipsilateral CRPS.
I have had a 8 day ketamine infusion, 4 sympathetic lumbar blocks, 4 stellate ganglion blocks and a trial of 2 different spinal cord stimulators.. nothing helps with the pain

Chronic regional pain syndrome might be something to look into, does your wife suffer from colour or temperature changes in her arm or hand?