Is a colostomy revision a contaminated or clean-contaminated case?

A colostomy revision is generally classified as a clean-contaminated case. This is because the procedure involves the gastrointestinal tract, which contains bacteria, thus presenting a risk of contamination. However, the surgical site itself is typically not infected, distinguishing it from a contaminated or dirty case. Proper surgical techniques and prophylactic antibiotics are usually employed to minimize infection risks during the procedure.