Effect of Nervus Cutaneous Femoris Lateralis-Blockade on Moderate Pain Responders After Total Hip Arthroplasty
Effect of Nervus Cutaneous Femoris Lateralis-Blockade on Moderate Pain Responders After Total Hip Arthroplasty
The patients will be included the 1. or 2. day after surgery. All THA patients will be
 screened. Those reporting VAS > 40 during active 30 degrees hip flexion will be asked to
 participate.

 Included patients will receive 2xNCFL (singleshot) first placebo (8 ml saline) and then
 ropivacaine (8 ml ropivacaine 7,5mg/ml) or the other way around (randomized). There will be
 45 minutes between the two blockades. The blockades will be ultrasound guided.
Inclusion Criteria:

 -  THA within 48 hours and VAS>40 during active 30 degrees hip flexion despite
 conventional pain medication.

 -  informed consent

 -  ASA 1-3

 -  BMI 18-40

 Exclusion Criteria:

 -  Unable to communicate in danish

 -  Allergic reactions toward drugs used

 -  Abuse of alcohol/drugs

 -  Unable to cooperate

 -  Pregnant women