FEM (n = 40) FIC (n = 40) p - values Gender (male/female) 23/17 21/19 n.s. Age (y) 64 (13) 62 (15) n.s. Body mass index (kg/m2) 28 (5) 29 (5) n.s. Intraoperative fentanyl consumption (mg) 0.6 (0.2) 0.6 (0.2) n.s. TEP non cemented 17 (42.5%) 18 (45%) n.s. TEP cemented 7 (17.5%) 4 (10%) n.s. TEP Hybrid 12 (30%) 15 (37.5%) n.s. Cap Prothesis 4 (10%) 3 (7.5%) n.s.

Table 1: Biometrical data (FEM: Femoral nerve group; FIC: Fascia iliaca group; TEP: Total endoprothesis; n.s.: not statistically significant). Values are expressed as mean (standard deiation) or n (%).