Pain Management

Perioperative pain management in THA is becoming increasingly important as the demand for minimally invasive surgery, early recovery, and early return to society increases. Pain management after THA includes epidural block, patientcontrolled analgesia (PCA), lumbar plexus block, femoral nerve block (FNB), lateral femoral cutaneous nerve block, intra-articular injection, and periarticular multidrug injection. Periarticular multidrug injection is an intraoperative injection in which a large volume of injectable solution containing multiple drugs is injected directly into the periarticular area for the primary purpose of pain control, and has recently received a great deal of attention and research. This chapter introduces periarticular multidrug injection, describes the actual method, and discusses its future prospects.