Send to:

Choose Destination
See comment in PubMed Commons below
J Arthroplasty. 2012 Jun;27(6):1133-7.e1. doi: 10.1016/j.arth.2011.09.016. Epub 2011 Nov 4.

Unipolar vs bipolar hemostasis in total knee arthroplasty: a prospective randomized trial.

Author information

  • 1Department of Orthopaedic Surgery, Albert Einstein College of Medicine, MMC Greene Medical Arts Pavilion, Bronx, New York 10467, USA.


The purpose of this study was to investigate whether unipolar or bipolar hemostasis is more effective in reducing blood loss associated with primary total knee arthroplasty. We randomized 113 consecutive patients undergoing primary total knee arthroplasty into unipolar and bipolar hemostasis treatment groups. The mean postoperative drain output in the unipolar group was 776.5 mL compared with 778.7 mL and was not statistically significant (P = .97). There were no statistically significant differences in postoperative day 1 through 3 hemoglobin level (P = .2-.6) or hematocrit (P = .17-.46) values. The transfusion requirement in the unipolar group was 36% and 40% in the bipolar group (P = .67). Use of bipolar sealer compared with standard unipolar electrocauterization showed no significant difference in postoperative drain output, postoperative hemoglobin level and hematocrit values, or transfusion requirements.

Copyright © 2012 Elsevier Inc. All rights reserved.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk