A lot of patient have posterior knee pain after ACL reconstruction despite saphenous nerve block. Recently a new block has been described, know as IPACK block (interspace between the popliteal artery and the capsule of the posterior knee). The objective of this randomized controlled double-blinded trial is to assess whether a combined saphenous nerve block with IPACK block is more effective for the postoperative pain than a local infiltration analgesia.
The saphenous nerve and the iPACK will be performed after general anaesthesia induction and before the surgery under ultrasound-guidance. The local infiltration analgesia will be performed by the surgeon during the surgery.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
60
Saphenous nerve block with 20ml of ropivacaine 0.5% and IPACK block with 30ml of ropivacaine 0.2% (total dose of 160 mg).
Periarticular infiltration of 80 ml ropivacaine 0.2% (total dose of 160mg).
Department of Anesthesia, Centre Hospitalier Universitaire Vaudois and University of Lausanne
Lausanne, Canton of Vaud, Switzerland
Total morphine consumption (mg)
Time frame: 24 hours postoperatively
Total morphine consumption (mg)
Time frame: 2 hours, 48 hours and 72 hours postoperatively
Pain scores (numeric rating scale, 0-10) at rest and on movement
0= no pain, 10=the worst pain imaginable
Time frame: 2hours, 24hours, 48hours and 72hours postoperatively
Rate of postoperative nausea and vomiting
Yes/No
Time frame: 2hours, 24hours, 48hours and 72hours postoperatively
Rate of antiemetic consumption
Yes/No
Time frame: 2hours, 24hours, 48hours and 72hours postoperatively
Rate of pruritus
Yes/No
Time frame: 2hours, 24hours, 48hours and 72hours postoperatively
Active flexion
Flexion of the knee by the patient measured in degrees
Time frame: 24hours, 48hours and 72hours postoperatively
Quadriceps muscle strength (numeric scale, 1-5)
1=no contraction, 5=normal strength
Time frame: 24hours, 48hours and 72hours postoperatively
Distance walked (meters)
Time frame: 24 hours, 48hours and 72hours postoperatively
Anterior Cruciate Ligament - Return to Sport after Injury survey
Time frame: 4 and 8 postoperative months
International Knee Documentation Committee score
Time frame: 4 and 8 postoperative months
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