The Influence of Local Infiltration Analgesia by Catheter in Postoperative Control Pain After Total Hip Replacement
Status:
Completed
Trial end date:
2014-06-01
Target enrollment:
Participant gender:
Summary
A randomized double-blind clinical trial was performed. There were 4 groups according to
catheter placement and infusion constituents: 1) Intraarticular catheter + anesthetics; 2)
Intraarticular catheter +placebo; 3) Subfascial catheter + anesthetics; 4) Subfascial
catheter + placebo. The anesthetics infusion contained bupivacaine (bolus + continuous
perfusion up to 36 hours). The placebo solution consisted in physiological serum (bolus +
continuous perfusion up to 36 hours). Randomization was performed in the hospital pharmacy
and the surgeon kept out the surgical field when the resident placed the catheter. The same
conventional analgesic schedule was prescribed to all patients: PCA (patient controlled
analgesia) + paracetamol 1g/6h + dexketoprofen 50mg/12h. The pain was evaluated by means of
PCA (patient controlled analgesia) shots and the VAS (visual analog scale). Side effects,
time to start rehabilitation and time to discharge were also analyzed. A statistical analysis
was performed to compare all this variables between the 4 groups (SPSS 18.0).