title: Ultrasound-guided continuous femoral nerve block vs continuous fascia iliaca compartment block for hip replacement in the elderly: A randomized controlled clinical trial (CONSORT).
abstract: BACKGROUND
  Continuous femoral nerve block and fascia iliaca compartment block are 2 traditional anesthesia methods in orthopedic surgeries, but it is controversial which method is better. The objective of this study was to compare the practicality, efficacy, and complications of the 2 modalities in hip replacement surgery in the elderly and to assess the utility of a novel cannula-over-needle set.
  
  
  METHODS
  In this prospective, randomized controlled clinical investigation, 60 elderly patients undergoing hip replacement were randomly assigned to receive either continuous femoral nerve block or continuous fascia iliaca compartment block. After ultrasound-guided nerve block, all patients received general anesthesia for surgery and postoperative analgesia through an indwelling cannula. Single-factor analysis of variance was used to compare the outcome variables between the 2 groups.
  
  
  RESULTS
  There was a significant difference between the 2 groups in the mean visual analog scale scores (at rest) at 6 hours after surgery: 1.0 ± 1.3 in the femoral nerve block group vs 0.5 ± 0.8 in the fascia iliaca compartment block group (P < 0.05). The femoral nerve block group had better postoperative analgesia on the medial aspect of the thigh, whereas the fascia iliaca compartment block group had better analgesia on the lateral aspect of the thigh. There were no other significant differences between the groups.
  
  
  CONCLUSIONS
  Both ultrasound-guided continuous femoral nerve block and fascia iliaca compartment block with the novel cannula-over-needle provide effective anesthesia and postoperative analgesia for elderly hip replacement patients.
authors.affiliation: Department of Anesthesiology, Tongji Hospital of Tongji University, Shanghai, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Yu
authors.forename: Miao
authors.initials: M
authors.lastname: He
authors.forename: Guang-Yu
authors.initials: GY
authors.lastname: Cai
authors.forename: Tian-Xiao
authors.initials: TX
authors.lastname: Zou
authors.forename: Na
authors.initials: N
authors.lastname: Zhang
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000779:Anesthetics, Local / Q000008:administration & dosage*; D019644:Arthroplasty, Replacement, Hip; D005205:Fascia; D005260:Female; D005267:Femoral Nerve; D005500:Follow-Up Studies; D006801:Humans; D007267:Injections; D008297:Male; D009407:Nerve Block / Q000379:methods*; D059408:Pain Management / Q000379:methods*; D010147:Pain Measurement; D010149:Postoperative Pain / Q000175:diagnosis / Q000517:prevention & control*; D011446:Prospective Studies; D016896:Treatment Outcome; D014463:Ultrasonography
chemical_list: D000779:Anesthetics, Local