Combining Lidocaine and Ropivacaine for an Infraclavicular Brachial Plexus Nerve Block

The Effect of Combining Lidocaine and Ropivacaine on the Duration and Onset Time of an Ultrasound-guided Infraclavicular Brachial Plexus Nerve Block. a Randomized Controlled Trial

The aim of the study is to investigate how the combination of ropivacaine (a slow onset, long duration local anesthetic) with lidocaine (a rapid onset, shorter duration local anesthetic) affects the onset and duration of a lateral infraclavicular plexus brachialis (LIC) block in patients undergoing non-acute hand surgery.

Patient who have given written informed consent to participate in the study, after having understood it

Inclusion Criteria:

• Scheduled for non-acute hand surgery in regional anesthesia
• Scheduled for surgery on one of the following: 1) Antebrachium fractures or 2) Arthroplasty of a thumb base joint or 3) alloplasty of a thumb base joint

Exclusion Criteria:

• BMI > 40 kg/m2
• Weight < 60 kg
• Age < 18 years
• ASA physical status classification system grade > 3
• Allergy to experimental drugs
• Patients who cannot cooperate with the examinations or treatment
• Patients who do not understand or speak Danish
• Patients with peripheral or central neurological disease or nerve damage with neurological effect on the upper extremity, where surgery is required