Objectives: To evaluate how surgical trends, costs, and outcomes for anterior cruciate ligament reconstruction (ACLR) vary with patient age. Design: Retrospective Cohort Study Setting: Outpatient Ambulatory Surgery Center Patients: 587 primary ACLR patients from 2009-2016. Inclusion criteria consisted of ACLR, complete preoperative two-year post-operative reported outcome (PRO) data. Patients w...