Scoliosis surgery is an invasive procedure essential for alleviating significant pain and improving the physical, psychological, aesthetic, professional, and social well-being of patients. However, it carries a considerable risk of perioperative complications. This retrospective study, conducted at Brest University Hospital since 2017, aims to analyze these complications to provide a detailed assessment, particularly since the introduction of the OARM (intraoperative CT navigation), with the goal of optimizing the safety and effectiveness of surgical interventions. The complications studied include neurological, infectious, mechanical, and cardiopulmonary complications, along with an additional "other" category for rare complications. The period analyzed extends from the immediate postoperative phase to the most recent follow-up consultation with the referring surgeon, which varies depending on the duration of follow-up for each patient.

Inclusion Criteria:

• Adult patient
• Patient affiliated with a social security system
• Who underwent scoliosis surgery between 2017 and 2024 at the Brest University Hospital

Exclusion Criteria:

Patients under legal protection (guardianship, curatorship, etc.) Refusal to participate (expressed opposition) History of scoliosis surgery performed by another surgeon, regardless of the center or year

Patient Who underwent scoliosis surgery between 2017 and 2024 at the Brest University Hospital

All collected data that underlie results in a publication

Data will be available beginning three years and ending fifteen years following the final study report completion

Data access requests will be reviewed by the internal committee of Brest UH. Requestors will be required to sign and complete a data access agreement