Alice had her radiofrequency rhizotomy on March 17, at Victoria (BC) General Hospital; Dr Sun was her neurosurgeon.
The procedure went with textbook precision, numbing only a portion of the face/mouth served by the V3 branch of the trigeminal nerve, centered on the area where she had experienced the TGN stabbing pains. The numb region is below a line extending from the left corner of her mouth towards a point about two inches short of her ear, then extending down past her jawline to a point about 2 inches onto her underjaw, then parallel to her jawline to a point below the centre of her chin, and thence up to the middle of her lower lip. I delineated this area using a feather-like touch. It is apparent that Dr Sun was utterly precise in positioning the tip of the RF needle. He is a superb neurosurgeon.
Although this is usually an outpatient procedure, because her OR time was late afternoon, she was admitted to hospital overnight, and seen by Dr Sun Friday before we returned home to Nanaimo (about 100 km north of Victoria).
Since the rhizotomy, she has experienced only twinges (numerous), which Dr Sun says is a normal post-op experience, and that these twinges should ease off in frequency over the next week or so. Alice has not had a pain strike post-op.
Although, of course, her inside cheek and half her tongue are numb, she has not had particular problems eating; but she has 'nipped' her lip a couple times, but nothing serious. Obviously, she must take great care for a while in chewing her food. She is preferring the right side, and will not eat anything that requires a lot of chewing (eg, steak) for the time being. If she wants anything that normally requires a lot of chewing, she'll cut it into small pieces.
She had been concerned that her head would be tightly clamped (which caused her some post-op pain when she had her unsuccessful microvascular decompression two years ago), but, in fact, the head constraint was quite gentle, causing no post-op discomfort whatsoever. Also, the needle puncture points through her cheek and her palate have not caused her any noticeable discomfort, post-op.
She will be maintaining her full pre-op daily dosages of Tegretol for the next three weeks, then she'll start the weaning-off process under the care of her GP.
Overall, Alice says, "It feels weird", as any of us who have had freezing in a dentist's chair could attest. But there is not even a trace of facial sagging, or speech impairment. If this RF rhizotomy puts an end to three years of near-unbearable pain strikes that have occurred almost at random, sometimes pulsing, and sometimes lasting an hour or more, then I'm sure she'll agree that a little "weird" will be a very small price to pay.
I will post weekly updates on Alice's post-RF-rhizotomy experience.
I would like to thank everyone who has contributed to this thread for their comments, advice, and support.
Art (and Alice)