Comparison of Kinematic Movements Between ACL Deficiency With ACL Reconstruction and Healthy People

Inclusion Criteria Normal group Adults between 19 and 60 years of age Those who have no knee instability, locking, or jamming, and no history of surgery A person who has the will and ability to follow the procedures of this clinical trial protocol Those who voluntarily agreed in writing to participate in this clinical trial Anterior cruciate ligament rupture patient group Adults between 19 and 60 years of age Those with grade 3 or higher in the Lachmann test A person suspected of having an anterior cruciate ligament injury tear on magnetic resonance imaging (MRI) A person who has the will and ability to follow the procedures of this clinical trial protocol Those who voluntarily agreed in writing to participate in this clinical trial Patient group more than 1 year after anterior cruciate ligament reconstruction Adults between 19 and 60 years of age A person who has performed double bundle reconstruction; or Those who have performed single bundle reconstruction and anterolateral ligament reconstruction A person who has the will and ability to follow the procedures of this clinical trial protocol Those who voluntarily agreed in writing to participate in this clinical trial Exclusion criteria Those with degenerative arthritis of the knee joint Those who need reoperation after anterior cruciate ligament rupture surgery, or those who have other knee surgery history, who are difficult to participate in the study under the judgment of the principal investigator Patients with chronic inflammatory joint disease such as rheumatoid arthritis Those whose growth plates are not closed Patients who need companion surgery for ligament instability of grade II (grade 0: none, grade I: 0-5 mm, grade II: 5-10 mm, grade III: >10 mm) on physical examination Pregnant and lactating women Persons judged by other researchers as inappropriate for participation in clinical trials