Regional Anesthesia for Joint Replacement

Introduction to Regional Blocks

The American Society of Anesthesiologists recommends using a lumbar plexus block plus local infiltration analgesia for total hip arthroplasty, which demonstrates superior static pain control at 12 hours and reduced opioid consumption at 24 hours, though carries higher complication risk than peripheral blocks 1
The American Society of Regional Anesthesia and Pain Medicine suggests that femoral nerve block provides excellent static pain control at 6 hours but causes significant quadriceps weakness, delaying mobilization 2, 3
The European Society of Regional Anaesthesia and Pain Therapy recommends single-shot spinal with local anesthetic plus morphine for superior postoperative analgesia compared to systemic, epidural, or lumbar plexus blocks 2, 3

The American Academy of Orthopaedic Surgeons recommends fascia iliaca block, which offers comparable analgesia to femoral nerve block with potentially less motor blockade, though evidence shows higher pain scores than femoral block by 5mm 1
The American Society of Anesthesiologists suggests that posterior lumbar plexus blocks have greater efficacy than femoral blocks but carry increased risk of serious complications including epidural spread and should be reserved for select patients 2, 3

The American Academy of Orthopaedic Surgeons recommends single-shot adductor canal block, which provides effective pain reduction and opioid-sparing without quadriceps weakness, allowing earlier mobilization 4
The European Society of Regional Anaesthesia and Pain Therapy suggests that combination of adductor canal block plus periarticular infiltration may provide superior analgesia for patients with anticipated severe postoperative pain 4, 5
The American Society of Regional Anesthesia and Pain Medicine recommends avoiding femoral nerve blocks due to significant quadriceps weakness, increasing fall risk and delaying rehabilitation 5, 4

The American Society of Anesthesiologists recommends continuous epidural with local anesthetic plus opioids for cardiopulmonary risk patients due to decreased cardiopulmonary morbidity 2, 3
The American Academy of Orthopaedic Surgeons suggests that epidural clonidine is not recommended due to risks of hypotension, sedation, and bradycardia 2, 3

The American Society of Anesthesiologists recommends paracetamol as baseline treatment for all pain intensities, decreasing supplementary analgesic requirements 2, 3, 6
The European Society of Regional Anaesthesia and Pain Therapy suggests that NSAIDs or COX-2 selective inhibitors should be used unless contraindicated, combined with paracetamol 2, 3, 7, 6

The American Society of Regional Anesthesia and Pain Medicine recommends proper aseptic technique is mandatory even in patients with systemic infections like Pseudomonas 8
The American Academy of Orthopaedic Surgeons suggests that regional blocks should be performed at anatomical sites distant from any active infection to minimize spread risk 6, 8