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The effect of positioning during tourniquet deflation

Comparison of the Effects of Three Types of Positioning (Modified Trendelenburg 45 Degrees, 20 Degrees, and Supine Position) During Tourniquet Deflation on Surgical Outcomes in Patients Candidate for Total Knee Arthroplasty(TKA)

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT20140721018553N5
Enrollment
111
Registered
2025-11-10
Start date
2025-09-25
Completion date
Unknown
Last updated
2025-12-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Condition 1: Primary osteoarthritis. Condition 2: Thigh pain. Condition 3: Knee pain. Condition 4: Lower limb swelling. Unilateral primary osteoarthritis of knee Pain in unspecified thigh Pain in unspecified knee Localized swelling, mass and lump, lower limb

Interventions

Intervention 1: Intervention group 1: The participants will undergo surgery by one surgeon. In this study, the Rayeen Sanat tourniquet device will be used. The tourniquet will be applied to the upper

Sponsors

Karaj University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
50 Years to 75 Years

Inclusion criteria

Inclusion criteria: Patients who have provided written informed consent to participate in the study. Patients with a body mass index (BMI) of less than 35. Patients who are candidates for primary unilateral Total Knee Arthroplasty surgery.

Exclusion criteria

Exclusion criteria: Patients with a history of deep vein thrombosis (DVT) or the use of anticoagulant drug. Patients with opioid addiction.

Design outcomes

Primary

MeasureTime frame
Blood pressure. Timepoint: Before tourniquet release, immediately after tourniquet release, at the time of entering the recovery room, and at discharge from the recovery room. Method of measurement: Vital signs monitor device with the ability to measure blood pressure non-invasively.;Heart rate. Timepoint: Before tourniquet release, immediately after tourniquet release, at the time of entering the recovery room, and at discharge from the recovery room. Method of measurement: Vital signs monitor device.;Thigh swelling. Timepoint: One hour before the intervention, 40 minutes after the intervention in the operating room, and 24 hours after the intervention in the care unit. Method of measurement: Limb circumference measurement in centimeters by a tape.;Knee swelling. Timepoint: One hour before the intervention, 40 minutes after the intervention in the operating room, and 24 hours after the intervention in the care unit. Method of measurement: Limb circumference measurement in centimeters by a tape.;Leg swelling. Timepoint: One hour before the intervention, 40 minutes after the intervention in the operating room, and 24 hours after the intervention in the care unit. Method of measurement: Limb circumference measurement in centimeters by a tape.

Secondary

MeasureTime frame
Knee pain around the surgical site. Timepoint: 60 minutes after the intervention before receiving analgesics in the recovery room, 24 hours after the intervention at rest. Method of measurement: Visual Analogue Scale.;Thigh pain at the tourniquet application site. Timepoint: 60 minutes after the intervention before receiving analgesics in the recovery room, 24 hours after the intervention at rest. Method of measurement: Visual Analogue Scale.;Hemoglobin level. Timepoint: Hemoglobin level before surgery, Hemoglobin level 24 hours after surgery. Method of measurement: The laboratory report attached to the patient’s medical record.;Hematocrit level. Timepoint: Hematocrit level before surgery, hematocrit level 24 hours after surgery. Method of measurement: The laboratory report attached to the patient’s medical record.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactAnna Asadollahpour Saeedabadi

Karaj University of Medical Sciences

mrs.ana.asadolahpour@gmail.com+98 21 7732 1679

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026