Severe leg pain for at least 4 decades and reflexes in knees now non-existent. diangosis peripheral neuropathy ten years ago. low back pain 10 yrs. any idea?

Peripheral Neuropath: Different possibilities exist for leg pains: neuropathy, vascular disease, and sciatica. Each of these can be ruled in/out based upon history, examination, and studies. Neuropathy is typically diagnosed with history of diabetes, chemo, toxic exposures, or no cause, and is associated with numbness/pain in a stocking distribution with absent reflexes. Emg/ncv can be helpful. Mri/ct usually negative.