I believe that the word rhizotomy refers to ablation of a nerve such as the ones that perceive pain in our facets. (this is the most common use that we see in the internet spine patient community.)
Whether it's Rf ablation, pulsed RF ablation, laser chemical, thermal or physically severing the nerve with a scalpel describes the method of ablation.
My guess is that the short answer to your question is 'yes', but, don't assume anything or even put too much creedence in what you read on the internet... make your doctor answer questions like this.
Mark
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