The investigators want to explore the analgesic effect of Adductor Canal Blockade (a peripheral nerve block) in high pain responding patients after arthroscopic knee surgery. The investigators hypothesize that the nerve block will have an abrupt analgesic effect.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
50
Intervention group: 1. block ropivacaine - 2. block saline
Control group: 1. block saline - 2. block ropivacaine
Amager Hospital, University of Copenhagen, Denmark
Copenhagen, Copenhagen, Amager, Denmark
Pain score during 45 degree flexion of the knee
Pain score during flexion of the knee 45 min. after nerve block
Time frame: 45 minutes after nerve block
Pain score
pain score at rest: time 0,15,30,45,60,75,90 min. after first nerve block pain score during flexion of the knee: time 0,15,30,45,60,75,90 min. after first nerve block pain score during mobilisation (5m walk): 45 and 90 min after nerve block
Time frame: 0-90 min. after first nerveblock
muscle strength
patients accesses muscle strength during walk
Time frame: 45 and 90 min after nerve block
Opioid consumption
Time frame: 0-90 min after nerve block
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