Abdominal wall prosthesis infections are among the complications most feared by digestive surgeons. Indeed, this complication is associated with high morbidity and is difficult to manage (antibiotic therapy? surgical revision?). Much data is missing in the literature because there are many types of prosthesis, implemented in patients with very varied conditions and the treatment is not strictly speaking codified.

The investigators wish to carry out a retrospective study on approximately 500 patients and research the main characteristics of the different infections (which microorganism? which site? what time of appearance), the factors linked to the appearance of these infections and above all how to optimize their management. charge.

Inclusion Criteria:

• Major subject (≥18 years old)
• Subject operated on at the HUS in the department of Pr. Rohr between January 1, 2017 and July 26, 2023
• Operation of an incisional hernia cure with installation of an abdominal wall prosthesis
• Absence of written opposition in the subject's medical file to the reuse of their data for scientific research purposes.

Exclusion Criteria:

• Subject having expressed his opposition to the reuse of his data for scientific research purposes.

Major subject (≥18 years old) operated on at the HUS in the department of Pr. Rohr between January 1, 2017 and July 26, 2023