Idiopathic scoliosis surgery is a major surgery, causing significant post-operative pain which can have a significant impact, both for the patient and for society. Different analgesic strategies have emerged in recent years, within the framework of multimodal analgesia including systemic analgesics, but also axial or peripheral loco-regional anesthesia (LRA). These techniques are integrated into the recommendations of learned societies, aimed at optimizing the post-operative rehabilitation of patients.

If intrathecal morphine injection (ITM) and spinal erector block (ESPB) have already shown their effectiveness in reducing postoperative pain, the combination of these techniques can have a real benefit in major spinal surgery. , and has not yet been studied.

Inclusion Criteria:

• Patient aged > 15 years
• Patient who underwent scoliosis surgery by the spine surgery team at Hautepierre hospital between January 1, 2020 and June 30, 2023
• Patient or holder of parental authority not opposing the reuse of their data for scientific research purposes

Exclusion Criteria:

• Oral or written refusal of the patient (or the holder of parental authority) to reuse their data for scientific research purposes
• History of spinal surgery
• Level 3 analgesics at home
• Protection of justice, titular or curatorship

Patient aged > 15 years who underwent scoliosis surgery by the spine surgery team at Hautepierre hospital between January 1, 2020 and June 30, 2023