Tow Techniques of Adductor Canal Block for Analgesia After Total Knee Replacement

Ultrasound-guided Continuous Adductor Canal Block for Analgesia After Total Knee Replacement: Comparison of Block at the Entrance and Middle of the Canal

This study compares the tow technique of continues adductor canal block for total knee replacement surgery. Half participants will receive catheterization at the entrance of the adductor canal, while the other half will receive catheterization at the middle point of the adductor canal.

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