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Postoperative analgesia in patients older than 75 years undergoing intervention for per-trochanteric hip fracture: a single centre retrospective cohort study

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The aim of this study was to compare the efficacy of four analgesia techniques on postoperative pain after per-trochanteric femur fracture. A retrospective cohort study was conducted on 131 consecutive patients older than 75 years enrolled in an 18-month period and who underwent per-trochanteric fracture repair under spinal analgesia. Patients received postoperative analgesia from: G1 (n = 36), intravenous analgesia on demand only; G2 (n = 28) administration of acetaminophen at fixed hours; G3 (n = 50) continuous morphine infusion; G4 (n = 17), preoperative echo-graphic guided femoral nerve block. Continuous opioid infusion failed to prevent the onset of pain at the end of the effects of subarachnoid anesthesia (rescue dose of analgesic in 48 % of patients in G3 vs. 22 % in G2 in the first day; p < 0.05). The greater effectiveness was achieved by preventing the onset of pain with drugs administered at time intervals (rescue dose of analgesic in 48 % of patients in G3, 58 % in G1 and 48 % in G4 vs. 22 % in G2 in the first day and rescue dose of analgesic in 32 % of patients in G3, 67 % in G1 and 76 % in G4 vs. 18 % in G2 in the second day; p < 0.05). Our study does not confirm the effectiveness of a single shot femoral nerve block on postoperative pain in per-trochanteric femur fracture (PAIN VAS score > 3 at t1 in 23 % of patients in G1 and 19 % in G4 vs. 10 % in G2 and G3; p < 0.05).

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Correspondence to Alessandro Di Filippo.

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Di Filippo, A., Magherini, M., Ruggiano, P. et al. Postoperative analgesia in patients older than 75 years undergoing intervention for per-trochanteric hip fracture: a single centre retrospective cohort study. Aging Clin Exp Res 27, 281–285 (2015).

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