Abadies sign, also known as the "pivot sign", is a term used in the field of orthopedics to describe a clinical examination test. This test is used to assess the integrity and stability of the anterior cruciate ligament (ACL) in the knee joint. Synonyms for Abadies sign include the "pivot shift test", "dynamic pivot shift", or simply the "pivot test". These synonyms all refer to the same diagnostic procedure performed to identify abnormal movement or instability in the knee. By using different terms to describe Abadies sign, medical professionals and researchers can effectively communicate and share information regarding this crucial diagnostic tool.