Proximal humeral fracture (PHF) is among the most common fractures in the elderly, particularly in women. Postoperative pain following surgical repair of PHF represents a significant clinical challenge. It directly impacts the patient's recovery, adherence to rehabilitation, and long-term functional outcomes.
The erector spinae plane block (ESPB) is a relatively novel regional anesthesia technique that has gained popularity due to its simplicity, safety profile, and broad applicability.
The resulting multi-dermatomal sensory block covers the anterior, lateral, and posterior thoracic and abdominal walls. This widespread effect is attributed to cranial and caudal spread of the anesthetic, facilitated by the thoracolumbar fascia. Radiologic studies have demonstrated anesthetic spread extending across three to four vertebral levels from the injection site.