RT Book, Section A1 Bhatt, Binoy A1 Monahan, Christopher A2 Freeman, Brian S. A2 Berger, Jeffrey S. SR Print(0) ID 1135738642 T1 Peripheral Nerve Blocks: Lower Extremity T2 Anesthesiology Core Review: Part Two Advanced Exam YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9781259641770 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1135738642 RD 2024/04/25 AB The lower extremity is supplied by nerves that are widely separated from each other as they enter the thigh. For this reason, lower extremity blocks are technically more difficult to perform than those of the upper extremity. Major nerves to the lower extremity include the sciatic, posterior femoral cutaneous, femoral, lateral femoral cutaneous, and obturator nerves (Figure 16-1). Lower extremity blocks provide for superior postoperative pain relief and are ideal for patients with comorbidities that make an epidural or spinal anesthetic otherwise unsafe.