Comparison of Different Neural Blockade Techniques in Postoperative Analgesia After Total Hip Arthroplasty

Comparison of Different Neural Blockade Techniques in Postoperative Analgesia After Total Hip Arthroplasty

To compare the different analgesic protocols for patients receiving total hip arthroplasty(THA). Patients will divided into 3 groups, which are 1. fascia iliaca compartment block with IV-PCA(patient controlled analgesia), 2. femoral nerve and lateral femoral cutaneous nerve block with IV-PCA, 3. IV-PCA only.

90 patients will be enrolled and randomized to the 3 different groups.

1. Inclusion criteria:

   Patient undergoing THA: 20-75 years old, ASA I-III, general anesthesia with intubation, fentanyl IV PCA.

2. Exclusion criteria Alcohol/substance abuse Rheumatoid arthritis Severe coagulation disorder(PLT<80000 or INR > 1.5) Peripheral neuropathy Allergy to opioids or local anesthetics BMI>35

3. The outcome followers are blinded to the intervention provided.

4. Outcome parameters:

   1. Opioid consumption of IV PCA in first 24 hrs.

   2. NSAID consumption

   3. NRS of pain, the timings of follow-up should be: pre-block, 30

      mins post-block, 60 mins post-block, 2 hours post-block, 24hours post-block

   4. sensory block in FN, Obturator Nerve and LFCN

   5. First request of supplemental IV analgesia

Inclusion Criteria:

• ASA I-III, general anesthesia with intubation.
• fentanyl IV PCA

Exclusion Criteria:

• Alcohol/substance abuse
• Rheumatoid arthritis
• Severe coagulation disorder(PLT<80000 or INR > 1.5)
• Peripheral neuropathy
• Allergy to opioids or local anesthetics
• BMI>35