Comparison of Suprainguinal Fascia Iliac Block With and Without Dexmedetomidine as an Adjunct to Ropivacaine for Postoperative Analgesia Following Hip Surgery: a Randomized, Double-blinded Study.
Rhode Island Hospital
Summary
The investigators are evaluating postoperative outcomes in patients undergoing hip replacement surgery performed with either spinal or general anesthesia, who also receive a suprainguinal fascia iliaca block using either perineural ropivacaine alone or ropivacaine combined with dexmedetomidine.
Description
Patients undergoing hip replacement surgery often receive a single-shot suprainguinal fascia iliaca block as a part of the primary anesthetic and multimodal postoperative analgesic strategy. However, the analgesic effect of a single-shot block typically diminishes after several hours and may be inconsistent beyond 24 hours. Adding dexmedetomidine, an alpha-2 agonist, to the local anesthetic has been shown to prolong block duration and reduce postoperative opioid requirements. Investigating its use in suprainguinal fascia iliaca blocks for total hip arthroplasty may clarify its clinical effecti…
Eligibility
- Age range
- 18–80 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Patients undergoing elective total hip arthroplasty * 18-80 years old * ASA 1-3 classifications Exclusion Criteria: * ASA classification of 4 or greater * Infection at the site of nerve blockade * Coagulopathy * Known allergy to study medications * Chronic opioid consumption (\>3 months) * Currently using lidocaine patches * Pre-existing neuropathy * A history of CVA * High grade atrioventricular block (cardiac conduction system impairment) * Organ dysfunction (cardiac failure, respiratory failure, end stage renal disease, hepatic dysfunction, hypoalbuminemia) * Morbid…
Interventions
- DrugDexmedetomidine
Participants in the experimental arm receive a preoperative suprainguinal fascia iliaca block consisting of 30 mL of 0.25% ropivacaine combined with perineural dexmedetomidine at a dose of 1 mcg/kg.
- DrugRopivacaine
In the experimental arm, ropivacaine (30 mL of 0.25%) is administered with dexmedetomidine. In the active comparator arm, ropivacaine (30 mL of 0.25%) is administered alone without any dexmedetomidine medication.
Location
- The Miriam HospitalProvidence, Rhode Island