Continuous Interscalene Block vs Liposomal Bupivacaine After Proximal Humerus Fracture Surgery (CLIP-H)
Shoulder Fractures
About this trial
This is an interventional treatment trial for Shoulder Fractures focused on measuring interscalene nerve block, shoulder surgery
Eligibility Criteria
Inclusion Criteria:
- ASA I-III
- Age between 18 and 80
- Isolated Proximal humeral fracture (AO Types 31.A1-3 and B1-3 or Neer 2/3 part or greater tuberosity fracture equivalent)
- Locking Plate fixation
- Split deltoid minimal invasive approach
Exclusion Criteria:
- Revision surgery
- Impaired cognitive function (Abbreviated Mental Test Score (AMT score) < 8)
- 4 part fractures
- Poor surgical reduction quality
- Unable to attend rehabilitation
- Preexisting shoulder problems
- Fracture fixation stability unable to tolerate early passive motion exercise
- Use of implants other than a locking plate for fracture fixation
- Activity of daily living is dependent on others
- Polytrauma
- Use of deltopectoral approach
- Patient unable to follow post-operative rehabilitation protocol with early mobilization
- Allergy to amide local anaesthetics, paracetamol, non-steroidal anti-inflammatory drugs (NSAIDS), opioids
- Respiratory Disease with limited respiratory reserve
- Cardiac Disease: Any degree of Heart Block, Heart Failure
- Neurological: Any Seizure Disorder
- Psychiatric illnesses affecting pain perception e.g. severe depression and anxiety disorder
- Alcohol or substance abuse
- Chronic Pain, other than chronic knee pain
- Daily use of strong opioids (morphine, fentanyl, hydromorphone, ketobemidone, methadone, nicomorphine, oxycodone, or meperidine)
- Impaired Renal Function (defined as preoperative eGFR < 30ml /min /1.73 m2)
- Impaired Hepatic Function
- Pregnancy
- Inability to use PCA
- Patient refusal to ISB
- Patient refusal to study
- Patients do not understand Cantonese
Sites / Locations
- Queen Mary HospitalRecruiting
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
Liposomal bupivacaine
Standard bupivacaine CISB
Patients will receive a single bolus interscalene injection of 10mL 1.33% LB followed by placement of indwelling (sham) catheter in the interscalene region. Upon arrival in the recovery room, a nurse will connect the catheter to a fixed-rate portable elastometric pump (Easypump®, B Braun, Germany) filled with 300mL normal saline (NS) at a default fixed rate of infusion of 5mL/hr. The syringe, catheter, pump and clamp will be covered by opaque black bags to conceal the milky appearance of LB. The catheter will be removed on postoperative day 2.
Patients will receive a single bolus interscalene injection of 10mL 0.25% SB followed by placement of indwelling (sham) catheter in the interscalene region. Upon arrival in the recovery room, a nurse will connect the catheter to a fixed-rate portable elastometric pump (Easypump®, B Braun, Germany) filled with 300mL 0.2% SB at a default fixed rate of infusion of 5mL/hr. The syringe, catheter, pump and clamp will be covered by opaque black bags to conceal the drug appearance. The catheter will be removed on postoperative day 2.