Clinical and Functional Outcomes of Tourniquet Use in Primary Total Knee Arthroplasty
1 other identifier
interventional
100
0 countries
N/A
Brief Summary
Many surgeons choose to perform total knee arthroplasty (TKA) surgery with the aid of a tourniquet. A tourniquet is a device that fits around the leg and restricts blood flow to the limb. There is a need to understand whether tourniquets are safe, and if they benefit, or harm, patients. The aim of this study was to determine the benefits and harms of tourniquet use in TKA surgery
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Oct 2022
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 1, 2022
CompletedStudy Start
First participant enrolled
October 10, 2022
CompletedFirst Posted
Study publicly available on registry
October 14, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 10, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
November 10, 2023
CompletedOctober 14, 2022
October 1, 2022
1 year
October 1, 2022
October 13, 2022
Conditions
Outcome Measures
Primary Outcomes (16)
Visual Analogue Scale (VAS)
Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100. A higher score indicates greater pain intensity. Based on the distribution of pain VAS scores in post-surgical patients, mild, moderate, or severe, the following cut points on the pain VAS have been recommended: no pain (0-4 mm), mild pain(5-44 mm), moderate pain (45-74 mm), and severe pain (75-100 mm).
Baseline
Visual Analogue Scale (VAS)
Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100. A higher score indicates greater pain intensity. Based on the distribution of pain VAS scores in post-surgical patients, mild, moderate, or severe, the following cut points on the pain VAS have been recommended: no pain (0-4 mm), mild pain(5-44 mm), moderate pain (45-74 mm), and severe pain (75-100 mm).
Day 1
Visual Analogue Scale (VAS)
Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100. A higher score indicates greater pain intensity. Based on the distribution of pain VAS scores in post-surgical patients, mild, moderate, or severe, the following cut points on the pain VAS have been recommended: no pain (0-4 mm), mild pain(5-44 mm), moderate pain (45-74 mm), and severe pain (75-100 mm).
Day 2
International Knee Documentation Committee 2000
International Knee Documentation Committee (IKDC) 2000 subjective score The score is interpreted as a measure of function such that higher scores represent higher levels of function and lower levels of symptoms. A score of 100 is interpreted to mean no limitation with activities of daily living or sports activities and the absence of symptoms.
Baseline
International Knee Documentation Committee 2000
International Knee Documentation Committee (IKDC) 2000 subjective score The score is interpreted as a measure of function such that higher scores represent higher levels of function and lower levels of symptoms. A score of 100 is interpreted to mean no limitation with activities of daily living or sports activities and the absence of symptoms.
Month 3
International Knee Documentation Committee 2000
International Knee Documentation Committee (IKDC) 2000 subjective score The score is interpreted as a measure of function such that higher scores represent higher levels of function and lower levels of symptoms. A score of 100 is interpreted to mean no limitation with activities of daily living or sports activities and the absence of symptoms.
Month 6
Oxford Score (OS)
This score is a patient reported outcome measure that consists of 12 questions about an individual's level of function, activities of daily living and how they have been affected by pain over the preceding four weeks. the scoring system from 0-4 where four is the best outcome and total scores range from 0 (poorest function) to 48 (maximal function)
Baseline
Oxford Score (OS)
This score is a patient reported outcome measure that consists of 12 questions about an individual's level of function, activities of daily living and how they have been affected by pain over the preceding four weeks. the scoring system from 0-4 where four is the best outcome and total scores range from 0 (poorest function) to 48 (maximal function)
Month 3
Oxford Score (OS)
This score is a patient reported outcome measure that consists of 12 questions about an individual's level of function, activities of daily living and how they have been affected by pain over the preceding four weeks. the scoring system from 0-4 where four is the best outcome and total scores range from 0 (poorest function) to 48 (maximal function)
Month 6
Lysholm score
The Lysholm Scale currently consists of eight items that measure: pain (25 points), instability (25 points), locking (15 points), swelling (10 points), limp (5 points), stair climbing (10 points), squatting (5 points), and need for support (5 points). Every question response has been assigned an arbitrary score on an increasing scale. The total score is the sum of each response to the eight questions and may range from 0-100. Higher scores indicate a better outcome with fewer symptoms or disabilities
Baseline
Lysholm score
The Lysholm Scale currently consists of eight items that measure: pain (25 points), instability (25 points), locking (15 points), swelling (10 points), limp (5 points), stair climbing (10 points), squatting (5 points), and need for support (5 points). Every question response has been assigned an arbitrary score on an increasing scale. The total score is the sum of each response to the eight questions and may range from 0-100. Higher scores indicate a better outcome with fewer symptoms or disabilities
Month 3
Lysholm score
The Lysholm Scale currently consists of eight items that measure: pain (25 points), instability (25 points), locking (15 points), swelling (10 points), limp (5 points), stair climbing (10 points), squatting (5 points), and need for support (5 points). Every question response has been assigned an arbitrary score on an increasing scale. The total score is the sum of each response to the eight questions and may range from 0-100. Higher scores indicate a better outcome with fewer symptoms or disabilities
Month 6
perioperative blood loss
intraoperative blood loss estimation in ml added to postoperative drainage
Hospital admission to discharge (about 3 days)
quadriceps area circumference
Measurement of thigh is usually performed 15 cm proximal to the superior pole of the patella. The thigh circumference is measured in cm with a measurement tape and compared to the normal contralateral knee to determine the amount of quadriceps atrophy present
Baseline
quadriceps area circumference
Measurement of thigh is usually performed 15 cm proximal to the superior pole of the patella. The thigh circumference is measured in cm with a measurement tape and compared to the normal contralateral knee to determine the amount of quadriceps atrophy present
Month 3
quadriceps area circumference
Measurement of thigh is usually performed 15 cm proximal to the superior pole of the patella. The thigh circumference is measured in cm with a measurement tape and compared to the normal contralateral knee to determine the amount of quadriceps atrophy present
Month 6
Study Arms (2)
tourniquet use
ACTIVE COMPARATORknee replacement surgery with the aid of a tourniquet - a tight band placed around the thigh that restricts blood flow to the knee.
without tourniquet use
SHAM COMPARATORknee replacement surgery without the aid of a tourniquet - a tight band placed around the thigh that restricts blood flow to the knee.
Interventions
Knee replacement, also called knee arthroplasty or total knee replacement, is a surgical procedure to resurface a knee damaged by arthritis. Metal and plastic parts are used to cap the ends of the bones that form the knee joint, along with the kneecap. This surgery may be considered for someone who has severe arthritis or a severe knee injury.
Eligibility Criteria
You may qualify if:
- Osteoarthritis Kellgren and Lawrence score III or IV
- Written consent
- Total knee arthroplasty
You may not qualify if:
- Neurological dysfunction
- Coagulation disorder
- Glucocorticoids, aspirin, heparin, coumadine, warfarin
- History of pulmonary embolism
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Masking Details
- the use of general anesthesia of all participants the outcomes assessor will not be able to have any information regarding tourniquet use
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator, medical doctor, assistant professor
Study Record Dates
First Submitted
October 1, 2022
First Posted
October 14, 2022
Study Start
October 10, 2022
Primary Completion
October 10, 2023
Study Completion
November 10, 2023
Last Updated
October 14, 2022
Record last verified: 2022-10