Anterior cruciate ligament femoral footprint anatomy: systematic review of the 21st century literature.

Purpose: The purpose of our study was to systematically review current arthroscopic and related literature and to characterize the anatomic centrum of the anterior cruciate ligament (ACL) femoral footprint.

Methods: On June 2, 2011, 2 independent reviewers performed a Medline search using the terms "anterior cruciate ligament" or "ACL," "femur" or "femoral," and "anatomy" or "origin" or "footprint." We included anatomic, cadaveric, and radiographic studies of adult, human, ACL femoral anatomy.