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After release and decompression techniques through PTED, nucleus pulposus pieces are removed and the nerve root is no longer pressured. (A) Removed nucleus pulposus pieces can be seen under transforaminal endoscopic discectomy; (B) removing nucleus pulposus pieces; and (C) nerve root is decompressed after surgery and the structure can be seen clearly under a microscope. PTED, percutaneous transforaminal endoscopic discectomy.
