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. 2017 Apr 3;13(6):2927–2933. doi: 10.3892/etm.2017.4293

Figure 1.

Figure 1.

Basic procedures of release and decompression techniques through PTED. (A) Puncture; (B) puncture through ligamentum flavum and pumpback and air test; (C) planted guide wire; and (D) planted working cannula. PTED, percutaneous transforaminal endoscopic discectomy.