Roberto, Dr. Yeung has spent an amazing amount of effort to crunch all the numbers to help him determine how to improve the procedure. He has told me that he actually gets slightly better results on recurrent herniations (already discectomied). He says that he can't explain it, but the numbers bear this out.
It's nice to hear him talk about the development of the procedure. For years, he would review the tapes of surgeries for patients that did not have success, looking for something that he might learn from or improve. He's very passionate about it. The changes in his procedure through the years and the improvements in the scopes, RF and Laser systems have been significant.
Mark
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