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Minimizing Tourniquet Pressures in Paediatric Orthopaedic Knee Surgery

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ClinicalTrials.gov Identifier: NCT00439153
Recruitment Status : Completed
First Posted : February 23, 2007
Last Update Posted : October 14, 2011
Information provided by (Responsible Party):
University of British Columbia

Brief Summary:

Tourniquet cuffs are routinely used to stop blood flow in patients' arms or legs during surgery. This allows surgeons to better visualize anatomical structures during the procedure. Although complications after surgery are rare, patients sometimes suffer from pain or numbness in their limb and redness of the skin in the area where the cuff was applied. Using the lowest pressure possible minimizes the chance of these problems. Previous studies, conducted on adults, have shown that basing the cuff pressure on the minimum amount of pressure necessary to stop blood flow to the limb (known as limb occlusion pressure, or LOP) can lead to lower cuff pressures successfully being used. The goal of this study is to determine the magnitude by which tourniquet cuff pressure can be reduced in children using a tourniquet instrument capable of measuring LOP in combination with tourniquet cuffs selected to fit the size and contour of the limb. The tourniquet instrument and cuffs used in this study are all commercially available and approved for use with children.


It is hypothesized that use of a commercially available tourniquet instrument capable of calculating limb occlusion pressure in combination with tourniquet cuffs selected and applied according to a standardized procedure will produce surgical fields of equal or superior quality with significantly lower tourniquet cuff pressures.

Condition or disease Intervention/treatment
Anterior Cruciate Ligament Repair Device: Tourniquet instrument capable of measuring LOP in combination with tourniquet cuffs

  Show Detailed Description

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 41 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Investigator)
Primary Purpose: Treatment
Official Title: Quality of Surgical Field in Reconstructive Anterior Cruciate Ligament Surgery: Comparison of Tourniquet Cuff Pressure Determined by an Automated Limb Occlusion Pressure Measurement to a Standard Pressure of 300 mm Hg.
Study Start Date : September 2006
Primary Completion Date : May 2008
Study Completion Date : May 2008

Intervention Details:
    Device: Tourniquet instrument capable of measuring LOP in combination with tourniquet cuffs
    See Detailed Description.

Primary Outcome Measures :
  1. Quality of surgical field

Secondary Outcome Measures :
  1. Average tourniquet cuff pressure
  2. Incidence of neurapraxias

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Ages Eligible for Study:   up to 18 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • All subjects will be selected from the primary investigator's patients scheduled for anterior cruciate ligament repair surgery

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00439153

Canada, British Columbia
British Columbia Children's Hospital
Vancouver, British Columbia, Canada, V6H 3N1
Sponsors and Collaborators
University of British Columbia
Principal Investigator: Christopher Reilly, MD University of British Columbia

Responsible Party: University of British Columbia
ClinicalTrials.gov Identifier: NCT00439153     History of Changes
Other Study ID Numbers: H06-03184
First Posted: February 23, 2007    Key Record Dates
Last Update Posted: October 14, 2011
Last Verified: October 2011