Fig. 1From: Sublingual sufentanil tablet system Zalviso® for postoperative analgesia after knee replacement in fast track surgery: a pilot observational studyNRS for SSTS and cFNB. Pain scores at rest were lower in the cFNB group at all times T1-T3 (p < 0.05). (T1: day 1, T2: day 2, T3: day 3)Back to article page