title: Effects of Postoperative Continuous Femoral Nerve Block Analgesia with Braun Continuous Peripheral Nerve Block Catheter Set versus Novel Needle-Over-Cannula after Total Knee Arthroplasty.
abstract: BACKGROUND
  The aim of this study was to compare the novel needle-over-cannula vs. the Braun continuous peripheral nerve block catheter set (Contiplex A) in postoperative analgesics after total knee arthroplasty (TKA).
  
  
  METHODS
  Sixty patients undergoing total knee arthroplasty were randomly assigned to Braun continuous peripheral nerve block catheter set group (Braun Group, n=30) or the novel needle-over-cannula group (Cannula Group, n=30). All the patients in the 2 groups received continuous femoral nerve block (CFNB) for postoperative analgesics.
  
  
  RESULTS
  We found no significant difference in analgesic effect between the 2 groups. The time of catheter or cannula insertion was shorter in the Cannula Group than in the Braun Group. Four (13.32%) out of 30 patients had failed catheter insertions in the Braun Group compared to none in the Cannula Group. Twelve (46%) out of 26 patients in the Braun Group had serious local anesthetic leakage at puncture sites during 12 h compared to none in the Cannula Group.
  
  
  CONCLUSIONS
  The novel needle-over-cannula is effective, convenient, and safe in CFNB after TKA.
authors.affiliation: Department of Anesthesiology, Tongji Hospital, Shanghai, China (mainland).
authors.forename: Bin
authors.initials: B
authors.lastname: Yu
authors.affiliation: Department of Anesthesiology, Guanghua Integrated Traditional Chinese and Western Medicine Hospital, Shanghai, China (mainland).
authors.forename: Xiaoxue
authors.initials: X
authors.lastname: Hu
authors.affiliation: Department of Anesthesiology, Tongji Hospital, Shanghai, China (mainland).
authors.forename: Tianxiao
authors.initials: T
authors.lastname: Zou
authors.affiliation: Department of Anesthesiology, Tongji Hospital, Shanghai, China (mainland).
authors.forename: Miao
authors.initials: M
authors.lastname: He
authors.affiliation: Department of Anesthesiology, Tongji Hospital, Shanghai, China (mainland).
authors.forename: Guangyu
authors.initials: G
authors.lastname: Cai
mesh_terms: D000700:Analgesics / Q000008:administration & dosage*; D019645:Arthroplasty, Replacement, Knee; D057785:Catheters; D005267:Femoral Nerve / Q000187:drug effects*; D006801:Humans; D009339:Needles; D009407:Nerve Block / Q000379:methods*; D011182:Postoperative Care; D016037:Single-Blind Method
chemical_list: D000700:Analgesics