The aim of this study is to investigate the efficacy of the Adductor-Canal-Blockade versus the Femoral Nerve Block on muscle strength, pain and mobilization after total knee arthroplasty. We hypothesize that the Adductor-Canal-Blockade has the same effect on pain and morphine consumption as the Femoral Nerve Block, but without the same reduction in quadriceps muscle strength.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
54
US-guided Adductor-Canal-Blockade with Ropivacaine
US-guided Femoral Nerve Block with Ropivacaine
Department of Anaesthesia, Copenhagen University Hospital, Frederiksberg
Frederiksberg, Frederiksberg, Denmark
The difference in quadriceps muscle strength between the Adductor-Canal-Blockade and the femoral nerve block
Time frame: 24 h postoperatively
The difference in adductor muscle strength between the Adductor-Canal-Blockade and the Femoral Nerve Block
Time frame: 24 h postoperatively
Pain during flexion of the knee
0-100 mm at a visual analogue scale (VAS), calculated as the area under the curve for the interval 2-24 hours postoperatively.
Time frame: 2-24 hours
Pain at rest
0-100 mm at a visual analogue scale (VAS), calculated as the area under the curve for the interval 2-24 hours postoperatively.
Time frame: 2-24 hours
Total morphine consumption
Time frame: 0-24 hours
Postoperative nausea
Time frame: 2-24 hours
Postoperative vomiting
Time frame: 0-24 hours
Sedation
Time frame: 2-24 hours
Zofran consumption
Number of patients recieveing zofran postoperatively
Time frame: 0-24 hours
The difference in mobilization between the groups
Time frame: 24 hours
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