GENIFEM Trial: Postoperative Pain After Total Knee Arthroplasty (TKA) (GENIFEM)
Analgesia, Total Knee Arthroplasty
About this trial
This is an interventional treatment trial for Analgesia focused on measuring Genicular block, iPACK, Local Infiltration Analgesia (LIA), Femoral triangle nerve block, Postoperative analgesia, Total knee arthroplasty
Eligibility Criteria
Inclusion Criteria:
- ≥18 years of age at screening
- Scheduled to undergo elective primary unilateral TKA
- American Society of Anaesthesiologists (ASA) physical status 1, 2 or 3
- Mentally competent to provide informed consent, to report pain intensity and to use patient-controlled analgesia
- Physically able to perform independently the baseline functionality tests
Exclusion Criteria:
- Obesity (BMI>40)
- Previous open knee surgery
- Revision TKA or bilateral TKA
- Contraindication to the following study medication: ropivacaine, morphine, midazolam, ketorolac, propofol, remifentanil, clonidine, dexamethasone, acetaminophen
- Uncontrolled anxiety, psychiatric, or neurological disorder that might interfere with study assessments
- Chronic widespread pain
- Radicular pain in index legClinical Study Protocol Version 1.0
- Preoperative strong opioid use within 3 days before surgery (with the exception of weak opioids: tramadol and codeine)
- Any chronic neuromuscular deficit affecting the peripheral nerves or muscles of the surgical extremity
- Impaired kidney function (Chronic kidney disease (CKD) G4-G5 according to Kidney Disease: Improving Global Outcomes (KDIGO) classification)
- Alcohol or drug abuse
- Pregnant, nursing or planning to become pregnant before treatment. Women of reproductive age will be tested on pregnancy prior to start of the study. Participants who get pregnant after the treatment during the follow-up period will not be excluded
Sites / Locations
- Ziekenhuis Oost-Limburg
Arms of the Study
Arm 1
Arm 2
Arm 3
Active Comparator
Active Comparator
Active Comparator
Genicular nerve block-iPACK group
Femoral triangle block-iPACK group
Local Infiltration Analgesia (LIA)
Genicular nerve block-iPACK group (performed by anaesthesiologist) Method: Ultrasound and nerve stimulation guided injection Genicular nerve block will be performed on the the superomedial, the superolateral, the inferomedial and inferolateral genicular nerve. Drug: a total of 30 ml of ropivacaine 0.5% (150 mg) will be used for this treatment arm.
Femoral triangle block-iPACK group (performed by anaesthesiologist) Method: Ultrasound and nerve stimulation guided injection Drug: a total of 30 ml of ropivacaine 0.5% (150 mg) will be used for this treatment arm
LIA (performed by surgeon) Method: Blind injection Drug: a total of 200 ml of 0.2% ropivacaine will be used (400 mg). Of this, 150 ml of ropivacaine 0.2% will be mixed with 1 mg of adrenaline.