Healthcare Professionals

Aquamantys System

and Bipolar Sealers

Clinical Outcomes for Orthopaedic Surgery

Clinical Studies

Many clinical studies have been published about Transcollation® technology, a combination of radiofrequency (RF) energy and saline that provides hemostatic sealing of soft tissue and bone during surgery. Below are a few key studies and their corresponding results.


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Reductions in Blood Loss with a Bipolar Sealer in Total Hip Arthroplasty¹

Marulanda et al. demonstrated a statistically significant difference in intra- (p = 0.002) and post-operative (p = 0.001) blood loss using the Aquamantys System. They also demonstrated a reduction in both allogeneic and autologous transfusion rates from 28% to 23% and 24% to 12% respectively. Transfusions overall were significantly reduced from 53% to 20% (p = 0.005).

Blood Management in Joint Replacement Surgery: What's in and What's Out?²

Bipolar Sealing in Revision Total Hip Arthroplasty for Infection: Efficacy and Cost Analysis³

Comparison of Unilateral and Rapidly Staged Bilateral Resurfacing Arthroplasty⁴

Additional References for Hip


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Hemostasis Using a Bipolar Sealer in Primary Unilateral Total Knee Arthroplasty⁵

This multi-center prospective randomized trial demonstrated that the amount of blood loss and decrease in post-operative hemoglobin were significantly lower in the bipolar sealer group (p = 0.0073 and p = 0.0417 respectively).

Reductions in Blood Loss with Use of a Bipolar Sealer for Hemostasis in Primary Total Knee Arthroplasty⁶

A Randomized, Prospective Trial to Determine the Hemostatic Efficacy of a Bipolar Sealing Device in Total Knee Replacement⁷

Hemostatic Efficacy of a Bipolar Sealing Device in Minimally Invasive Total Knee Arthroplasty⁸

Aquamantys Bipolar Sealer in Primary Total Knee Arthroplasty: Experience with 3,172 Consecutive Knee Replacements⁹

Additional References for Knee



Marulanda GA, Ulrich SD, Seyler TM et al. Reductions in blood loss with a bipolar sealer in total hip arthroplasty. Expert Rev Med Devices 2008; 5(2):125-131.


Krebs V, Higuera C, Barsoum W, Helfand R. Blood management in joint replacement surgery: what's in and what's out? Orthopedics 2006; 29(4):801-3.


Kamath AF, Clement RC, Derman PB et al. Bipolar sealing in revision total hip arthroplasty for infection: efficacy and cost analysis. E-published in J Arthrop 2012.


Gross T, Liu F, Webb L. Comparison of unilateral and rapidly staged bilateral resurfacing arthroplasty. Acta Orthop Belg 2011; 77(2):203-210.


Marulanda G, Krebs V, Bierbaum BE et al. Haemostasis using a bipolar sealer in primary total knee arthroplasty. Am J Ortho 2009; 38(12):E179-183.


Marulanda GA, Ragland PS, Seyler TM et al. Reductions in blood loss with use of a bipolar sealer for hemostasis in primary total knee arthroplasty. Surg Tech XIV 2005; 12:281-286.


Pierson JL, Hellman EJ, Earles DR et al. A randomized, prospective trial to determine the haemostatic efficacy of a bipolar sealing device in total knee replacement.

  • American Academy of Orthopedic Surgeons 2006, Chicago, IL.
  • American Association of Hip and Knee Surgeon 2005, Dallas TX.
  • Knee Society Interim Meeting 2005, New York, NY.
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    Weeden SH, Schmidt RH, Isabell G. Haemostatic efficacy of a bipolar sealing device in minimally invasive total knee arthroplasty. J Bone Joint Surg Br Proceedings 2009; 91-B:45.


    Sah A, Dearborn J. Aquamantys bipolar sealer in primary total knee arthroplasty: experience with 3,172 consecutive knee replacements. Poster presentation at American Academy of Orthopaedic Surgeons Annual Meeting 2012; San Francisco, CA.