Ultrasound-guided Continuous Adductor Canal Block for Analgesia After Total Knee Replacement: Comparison of Short-axis and Long-axis Techniques

This study compares the long-axis and short-axis technique of continues adductor canal block for total knee replacement surgery. Half participants will receive long-axis catheterization, while the other half will receive short-axis catheterization.

Inclusion Criteria:

• 18-80 years
• Knee-arthroscopy
• Written consent
• ASA I-III
• BMI 19-35

Exclusion Criteria:

• Unable to communicate with the investigators (e.g., a language barrier or a neuropsychiatric disorder).
• coagulopathy or on anticoagulant medication
• Allergic reactions toward drugs used in the trial
• History of substance abuse
• Infection at injection site
• Can not be mobilised to 5 meters of walk pre-surgery