Evaluating the appropriateness of elective surgery: The case of spinal fusion (arthrodesis).

Our work provides a definition of appropriateness that goes beyond the clinical perspective and includes other perspectives (equity, service delivery and outcome); develops a framework and an approach that can be a valid help to systematically assess the appropriateness of elective surgery, adopt improvement actions, and monitor their impact; discusses what are the competencies necessary for measuring the appropriateness.